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Start Over Author "Susino, Roberto" Publisher natl inst astrophys, astrophys observ torino, via osservatorio 20, i-10025 pino torinese, italy.
17 results on '"Susino, Roberto"'

1. Metis Observation of the Onset of Fully Developed Turbulence in the Solar Corona

Author

Telloni, Daniele, Sorriso-Valvo, Luca, Zank, Gary P., Velli, Marco, Andretta, Vincenzo, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Vecchio, Antonio, Adhikari, Laxman, Zhao, Lingling, Guastavino, Sabrina, Camattari, Fabiana, Shi, Chen, Sioulas, Nikos, Huang, Zesen, Romoli, Marco, Antonucci, Ester, Da Deppo, Vania, Fineschi, Silvano, Grimani, Catia, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Uslenghi, Michela, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Bruno, Roberto, Burtovoi, Aleksandr, Capobianco, Gerardo, Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., D'Amicis, Raffaella, De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Nistico, Giuseppe, Pancrazzi, Maurizio, Pelizzo, Maria G., Peter, Hardi, Plainaki, Christina, Poletto, Luca, Reale, Fabio, Romano, Paolo, Russano, Giuliana, Sasso, Clementina, Schuehle, Udo, Solanki, Sami K., Strachan, Leonard, Straus, Thomas, Susino, Roberto, Ventura, Rita, Volpicelli, Cosimo A., Woch, Joachim, Zangrilli, Luca, Zimbardo, Gaetano, Zuppella, Paola, Telloni, Daniele, Sorriso-Valvo, Luca, Zank, Gary P., Velli, Marco, Andretta, Vincenzo, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Vecchio, Antonio, Adhikari, Laxman, Zhao, Lingling, Guastavino, Sabrina, Camattari, Fabiana, Shi, Chen, Sioulas, Nikos, Huang, Zesen, Romoli, Marco, Antonucci, Ester, Da Deppo, Vania, Fineschi, Silvano, Grimani, Catia, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Uslenghi, Michela, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Bruno, Roberto, Burtovoi, Aleksandr, Capobianco, Gerardo, Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., D'Amicis, Raffaella, De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Nistico, Giuseppe, Pancrazzi, Maurizio, Pelizzo, Maria G., Peter, Hardi, Plainaki, Christina, Poletto, Luca, Reale, Fabio, Romano, Paolo, Russano, Giuliana, Sasso, Clementina, Schuehle, Udo, Solanki, Sami K., Strachan, Leonard, Straus, Thomas, Susino, Roberto, Ventura, Rita, Volpicelli, Cosimo A., Woch, Joachim, Zangrilli, Luca, Zimbardo, Gaetano, and Zuppella, Paola

Abstract

This Letter reports the first observation of the onset of fully developed turbulence in the solar corona. Long time series of white-light coronal images, acquired by Metis aboard Solar Orbiter at 2 minutes cadence and spanning about 10 hr, were studied to gain insight into the statistical properties of fluctuations in the density of the coronal plasma in the time domain. From pixel-by-pixel spectral frequency analysis in the whole Metis field of view, the scaling exponents of plasma fluctuations were derived. The results show that, over timescales ranging from 1 to 10 hr and corresponding to the photospheric mesogranulation-driven dynamics, the density spectra become shallower moving away from the Sun, resembling a Kolmogorov-like spectrum at 3 R circle dot. According to the latest observation and interpretive work, the observed 5/3 scaling law for density fluctuations is indicative of the onset of fully developed turbulence in the corona. Metis observation-based evidence for a Kolmogorov turbulent form of the fluctuating density spectrum casts light on the evolution of 2D turbulence in the early stages of its upward transport from the low corona.

Published
2024
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2. Does Turbulence along the Coronal Current Sheet Drive Ion Cyclotron Waves?

Author

Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, Slemer, Alessandra, Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, and Slemer, Alessandra

Abstract

Evidence for the presence of ion cyclotron waves (ICWs), driven by turbulence, at the boundaries of the current sheet is reported in this paper. By exploiting the full potential of the joint observations performed by Parker Solar Probe and the Metis coronagraph on board Solar Orbiter, local measurements of the solar wind can be linked with the large-scale structures of the solar corona. The results suggest that the dynamics of the current sheet layers generates turbulence, which in turn creates a sufficiently strong temperature anisotropy to make the solar-wind plasma unstable to anisotropy-driven instabilities such as the Alfven ion cyclotron, mirror-mode, and firehose instabilities. The study of the polarization state of high-frequency magnetic fluctuations reveals that ICWs are indeed present along the current sheet, thus linking the magnetic topology of the remotely imaged coronal source regions with the wave bursts observed in situ. The present results may allow improvement of state-of-the-art models based on the ion cyclotron mechanism, providing new insights into the processes involved in coronal heating.

Published
2023
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3. Does Turbulence along the Coronal Current Sheet Drive Ion Cyclotron Waves?

Author

Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, Slemer, Alessandra, Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, and Slemer, Alessandra

Abstract

Evidence for the presence of ion cyclotron waves (ICWs), driven by turbulence, at the boundaries of the current sheet is reported in this paper. By exploiting the full potential of the joint observations performed by Parker Solar Probe and the Metis coronagraph on board Solar Orbiter, local measurements of the solar wind can be linked with the large-scale structures of the solar corona. The results suggest that the dynamics of the current sheet layers generates turbulence, which in turn creates a sufficiently strong temperature anisotropy to make the solar-wind plasma unstable to anisotropy-driven instabilities such as the Alfven ion cyclotron, mirror-mode, and firehose instabilities. The study of the polarization state of high-frequency magnetic fluctuations reveals that ICWs are indeed present along the current sheet, thus linking the magnetic topology of the remotely imaged coronal source regions with the wave bursts observed in situ. The present results may allow improvement of state-of-the-art models based on the ion cyclotron mechanism, providing new insights into the processes involved in coronal heating.

Published
2023
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4. Does Turbulence along the Coronal Current Sheet Drive Ion Cyclotron Waves?

Author

Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, Slemer, Alessandra, Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, and Slemer, Alessandra

Abstract

Evidence for the presence of ion cyclotron waves (ICWs), driven by turbulence, at the boundaries of the current sheet is reported in this paper. By exploiting the full potential of the joint observations performed by Parker Solar Probe and the Metis coronagraph on board Solar Orbiter, local measurements of the solar wind can be linked with the large-scale structures of the solar corona. The results suggest that the dynamics of the current sheet layers generates turbulence, which in turn creates a sufficiently strong temperature anisotropy to make the solar-wind plasma unstable to anisotropy-driven instabilities such as the Alfven ion cyclotron, mirror-mode, and firehose instabilities. The study of the polarization state of high-frequency magnetic fluctuations reveals that ICWs are indeed present along the current sheet, thus linking the magnetic topology of the remotely imaged coronal source regions with the wave bursts observed in situ. The present results may allow improvement of state-of-the-art models based on the ion cyclotron mechanism, providing new insights into the processes involved in coronal heating.

Published
2023
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5. Does Turbulence along the Coronal Current Sheet Drive Ion Cyclotron Waves?

Author

Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, Slemer, Alessandra, Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, and Slemer, Alessandra

Abstract

Evidence for the presence of ion cyclotron waves (ICWs), driven by turbulence, at the boundaries of the current sheet is reported in this paper. By exploiting the full potential of the joint observations performed by Parker Solar Probe and the Metis coronagraph on board Solar Orbiter, local measurements of the solar wind can be linked with the large-scale structures of the solar corona. The results suggest that the dynamics of the current sheet layers generates turbulence, which in turn creates a sufficiently strong temperature anisotropy to make the solar-wind plasma unstable to anisotropy-driven instabilities such as the Alfven ion cyclotron, mirror-mode, and firehose instabilities. The study of the polarization state of high-frequency magnetic fluctuations reveals that ICWs are indeed present along the current sheet, thus linking the magnetic topology of the remotely imaged coronal source regions with the wave bursts observed in situ. The present results may allow improvement of state-of-the-art models based on the ion cyclotron mechanism, providing new insights into the processes involved in coronal heating.

Published
2023
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6. Does Turbulence along the Coronal Current Sheet Drive Ion Cyclotron Waves?

Author

Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, Slemer, Alessandra, Telloni, Daniele, Zank, Gary P. P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D. D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, and Slemer, Alessandra

Abstract

Evidence for the presence of ion cyclotron waves (ICWs), driven by turbulence, at the boundaries of the current sheet is reported in this paper. By exploiting the full potential of the joint observations performed by Parker Solar Probe and the Metis coronagraph on board Solar Orbiter, local measurements of the solar wind can be linked with the large-scale structures of the solar corona. The results suggest that the dynamics of the current sheet layers generates turbulence, which in turn creates a sufficiently strong temperature anisotropy to make the solar-wind plasma unstable to anisotropy-driven instabilities such as the Alfven ion cyclotron, mirror-mode, and firehose instabilities. The study of the polarization state of high-frequency magnetic fluctuations reveals that ICWs are indeed present along the current sheet, thus linking the magnetic topology of the remotely imaged coronal source regions with the wave bursts observed in situ. The present results may allow improvement of state-of-the-art models based on the ion cyclotron mechanism, providing new insights into the processes involved in coronal heating.

Published
2023
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7. Linking Small-scale Solar Wind Properties with Large-scale Coronal Source Regions through Joint Parker Solar Probe-Metis/Solar Orbiter Observations

Author

Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, Zimbardo, Gaetano, Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, and Zimbardo, Gaetano

Abstract

The solar wind measured in situ by Parker Solar Probe in the very inner heliosphere is studied in combination with the remote-sensing observation of the coronal source region provided by the METIS coronagraph aboard Solar Orbiter. The coronal outflows observed near the ecliptic by Metis on 2021 January 17 at 16:30 UT, between 3.5 and 6.3 R (circle dot) above the eastern solar limb, can be associated with the streams sampled by PSP at 0.11 and 0.26 au from the Sun, in two time intervals almost 5 days apart. The two plasma flows come from two distinct source regions, characterized by different magnetic field polarity and intensity at the coronal base. It follows that both the global and local properties of the two streams are different. Specifically, the solar wind emanating from the stronger magnetic field region has a lower bulk flux density, as expected, and is in a state of well-developed Alfvenic turbulence, with low intermittency. This is interpreted in terms of slab turbulence in the context of nearly incompressible magnetohydrodynamics. Conversely, the highly intermittent and poorly developed turbulent behavior of the solar wind from the weaker magnetic field region is presumably due to large magnetic deflections most likely attributed to the presence of switchbacks of interchange reconnection origin.

Published
2022
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8. Linking Small-scale Solar Wind Properties with Large-scale Coronal Source Regions through Joint Parker Solar Probe-Metis/Solar Orbiter Observations

Author

Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, Zimbardo, Gaetano, Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, and Zimbardo, Gaetano

Abstract

The solar wind measured in situ by Parker Solar Probe in the very inner heliosphere is studied in combination with the remote-sensing observation of the coronal source region provided by the METIS coronagraph aboard Solar Orbiter. The coronal outflows observed near the ecliptic by Metis on 2021 January 17 at 16:30 UT, between 3.5 and 6.3 R (circle dot) above the eastern solar limb, can be associated with the streams sampled by PSP at 0.11 and 0.26 au from the Sun, in two time intervals almost 5 days apart. The two plasma flows come from two distinct source regions, characterized by different magnetic field polarity and intensity at the coronal base. It follows that both the global and local properties of the two streams are different. Specifically, the solar wind emanating from the stronger magnetic field region has a lower bulk flux density, as expected, and is in a state of well-developed Alfvenic turbulence, with low intermittency. This is interpreted in terms of slab turbulence in the context of nearly incompressible magnetohydrodynamics. Conversely, the highly intermittent and poorly developed turbulent behavior of the solar wind from the weaker magnetic field region is presumably due to large magnetic deflections most likely attributed to the presence of switchbacks of interchange reconnection origin.

Published
2022
Full Text
View/download PDF

9. Linking Small-scale Solar Wind Properties with Large-scale Coronal Source Regions through Joint Parker Solar Probe-Metis/Solar Orbiter Observations

Author

Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, Zimbardo, Gaetano, Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, and Zimbardo, Gaetano

Abstract

The solar wind measured in situ by Parker Solar Probe in the very inner heliosphere is studied in combination with the remote-sensing observation of the coronal source region provided by the METIS coronagraph aboard Solar Orbiter. The coronal outflows observed near the ecliptic by Metis on 2021 January 17 at 16:30 UT, between 3.5 and 6.3 R (circle dot) above the eastern solar limb, can be associated with the streams sampled by PSP at 0.11 and 0.26 au from the Sun, in two time intervals almost 5 days apart. The two plasma flows come from two distinct source regions, characterized by different magnetic field polarity and intensity at the coronal base. It follows that both the global and local properties of the two streams are different. Specifically, the solar wind emanating from the stronger magnetic field region has a lower bulk flux density, as expected, and is in a state of well-developed Alfvenic turbulence, with low intermittency. This is interpreted in terms of slab turbulence in the context of nearly incompressible magnetohydrodynamics. Conversely, the highly intermittent and poorly developed turbulent behavior of the solar wind from the weaker magnetic field region is presumably due to large magnetic deflections most likely attributed to the presence of switchbacks of interchange reconnection origin.

Published
2022
Full Text
View/download PDF

10. Observation and Modeling of the Solar Wind Turbulence Evolution in the Sub-Mercury Inner Heliosphere

Author

Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, Richter, Ingo, Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, and Richter, Ingo

Abstract

This letter exploits the radial alignment between the Parker Solar Probe and BepiColombo in late 2022 February, when both spacecraft were within Mercury's orbit. This allows the study of the turbulent evolution, namely, the change in spectral and intermittency properties, of the same plasma parcel during its expansion from 0.11 to 0.33 au, a still unexplored region. The observational analysis of the solar wind turbulent features at the two different evolution stages is complemented by a theoretical description based on the turbulence transport model equations for nearly incompressible magnetohydrodynamics. The results provide strong evidence that the solar wind turbulence already undergoes significant evolution at distances less than 0.3 au from the Sun, which can be satisfactorily explained as due to evolving slab fluctuations. This work represents a step forward in understanding the processes that control the transition from weak to strong turbulence in the solar wind and in properly modeling the heliosphere.

Published
2022
Full Text
View/download PDF

11. Linking Small-scale Solar Wind Properties with Large-scale Coronal Source Regions through Joint Parker Solar Probe-Metis/Solar Orbiter Observations

Author

Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, Zimbardo, Gaetano, Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, and Zimbardo, Gaetano

Abstract

The solar wind measured in situ by Parker Solar Probe in the very inner heliosphere is studied in combination with the remote-sensing observation of the coronal source region provided by the METIS coronagraph aboard Solar Orbiter. The coronal outflows observed near the ecliptic by Metis on 2021 January 17 at 16:30 UT, between 3.5 and 6.3 R (circle dot) above the eastern solar limb, can be associated with the streams sampled by PSP at 0.11 and 0.26 au from the Sun, in two time intervals almost 5 days apart. The two plasma flows come from two distinct source regions, characterized by different magnetic field polarity and intensity at the coronal base. It follows that both the global and local properties of the two streams are different. Specifically, the solar wind emanating from the stronger magnetic field region has a lower bulk flux density, as expected, and is in a state of well-developed Alfvenic turbulence, with low intermittency. This is interpreted in terms of slab turbulence in the context of nearly incompressible magnetohydrodynamics. Conversely, the highly intermittent and poorly developed turbulent behavior of the solar wind from the weaker magnetic field region is presumably due to large magnetic deflections most likely attributed to the presence of switchbacks of interchange reconnection origin.

Published
2022
Full Text
View/download PDF

12. Observation and Modeling of the Solar Wind Turbulence Evolution in the Sub-Mercury Inner Heliosphere

Author

Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, Richter, Ingo, Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, and Richter, Ingo

Abstract

This letter exploits the radial alignment between the Parker Solar Probe and BepiColombo in late 2022 February, when both spacecraft were within Mercury's orbit. This allows the study of the turbulent evolution, namely, the change in spectral and intermittency properties, of the same plasma parcel during its expansion from 0.11 to 0.33 au, a still unexplored region. The observational analysis of the solar wind turbulent features at the two different evolution stages is complemented by a theoretical description based on the turbulence transport model equations for nearly incompressible magnetohydrodynamics. The results provide strong evidence that the solar wind turbulence already undergoes significant evolution at distances less than 0.3 au from the Sun, which can be satisfactorily explained as due to evolving slab fluctuations. This work represents a step forward in understanding the processes that control the transition from weak to strong turbulence in the solar wind and in properly modeling the heliosphere.

Published
2022
Full Text
View/download PDF

13. Observation and Modeling of the Solar Wind Turbulence Evolution in the Sub-Mercury Inner Heliosphere

Author

Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, Richter, Ingo, Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, and Richter, Ingo

Abstract

This letter exploits the radial alignment between the Parker Solar Probe and BepiColombo in late 2022 February, when both spacecraft were within Mercury's orbit. This allows the study of the turbulent evolution, namely, the change in spectral and intermittency properties, of the same plasma parcel during its expansion from 0.11 to 0.33 au, a still unexplored region. The observational analysis of the solar wind turbulent features at the two different evolution stages is complemented by a theoretical description based on the turbulence transport model equations for nearly incompressible magnetohydrodynamics. The results provide strong evidence that the solar wind turbulence already undergoes significant evolution at distances less than 0.3 au from the Sun, which can be satisfactorily explained as due to evolving slab fluctuations. This work represents a step forward in understanding the processes that control the transition from weak to strong turbulence in the solar wind and in properly modeling the heliosphere.

Published
2022
Full Text
View/download PDF

14. Observation and Modeling of the Solar Wind Turbulence Evolution in the Sub-Mercury Inner Heliosphere

Author

Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, Richter, Ingo, Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, and Richter, Ingo

Abstract

This letter exploits the radial alignment between the Parker Solar Probe and BepiColombo in late 2022 February, when both spacecraft were within Mercury's orbit. This allows the study of the turbulent evolution, namely, the change in spectral and intermittency properties, of the same plasma parcel during its expansion from 0.11 to 0.33 au, a still unexplored region. The observational analysis of the solar wind turbulent features at the two different evolution stages is complemented by a theoretical description based on the turbulence transport model equations for nearly incompressible magnetohydrodynamics. The results provide strong evidence that the solar wind turbulence already undergoes significant evolution at distances less than 0.3 au from the Sun, which can be satisfactorily explained as due to evolving slab fluctuations. This work represents a step forward in understanding the processes that control the transition from weak to strong turbulence in the solar wind and in properly modeling the heliosphere.

Published
2022
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15. Linking Small-scale Solar Wind Properties with Large-scale Coronal Source Regions through Joint Parker Solar Probe-Metis/Solar Orbiter Observations

Author

Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, Zimbardo, Gaetano, Telloni, Daniele, Zank, Gary P., Sorriso-Valvo, Luca, D'Amicis, Raffaella, Panasenco, Olga, Susino, Roberto, Bruno, Roberto, Perrone, Denise, Adhikari, Laxman, Liang, Haoming, Nakanotani, Masaru, Zhao, Lingling, Hadid, Lina Z., Sanchez-Cano, Beatriz, Verscharen, Daniel, Velli, Marco, Grimani, Catia, Marino, Raffaele, Carbone, Francesco, Mancuso, Salvatore, Biondo, Ruggero, Pagano, Paolo, Reale, Fabio, Bale, Stuart D., Kasper, Justin C., Case, Anthony W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Stevens, Michael L., Whittlesey, Phyllis, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Stangalini, Marco, Teriaca, Luca, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., De Leo, Yara, Fabi, Michele, Frassati, Federica, Frassetto, Fabio, Giordano, Silvio, Guglielmino, Salvo L., Jerse, Giovanna, Landini, Federico, Liberatore, Alessandro, Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Pancrazzi, Maurizio, Pelizzo, Maria G., Romano, Paolo, Sasso, Clementina, Schuhle, Udo, Slemer, Alessandra, Straus, Thomas, Uslenghi, Michela, Volpicelli, Cosimo A., Zangrilli, Luca, Zuppella, Paola, Abbo, Lucia, Auchere, Frederic, Cuadrado, Regina Aznar, Berlicki, Arkadiusz, Ciaravella, Angela, Lamy, Philippe, Lanzafame, Alessandro, Malvezzi, Marco, Nicolosi, Piergiorgio, Nistico, Giuseppe, Peter, Hardi, Solanki, Sami K., Strachan, Leonard, Tsinganos, Kanaris, Ventura, Rita, Vial, Jean-Claude, Woch, Joachim, and Zimbardo, Gaetano

Abstract

The solar wind measured in situ by Parker Solar Probe in the very inner heliosphere is studied in combination with the remote-sensing observation of the coronal source region provided by the METIS coronagraph aboard Solar Orbiter. The coronal outflows observed near the ecliptic by Metis on 2021 January 17 at 16:30 UT, between 3.5 and 6.3 R (circle dot) above the eastern solar limb, can be associated with the streams sampled by PSP at 0.11 and 0.26 au from the Sun, in two time intervals almost 5 days apart. The two plasma flows come from two distinct source regions, characterized by different magnetic field polarity and intensity at the coronal base. It follows that both the global and local properties of the two streams are different. Specifically, the solar wind emanating from the stronger magnetic field region has a lower bulk flux density, as expected, and is in a state of well-developed Alfvenic turbulence, with low intermittency. This is interpreted in terms of slab turbulence in the context of nearly incompressible magnetohydrodynamics. Conversely, the highly intermittent and poorly developed turbulent behavior of the solar wind from the weaker magnetic field region is presumably due to large magnetic deflections most likely attributed to the presence of switchbacks of interchange reconnection origin.

Published
2022
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16. Observation and Modeling of the Solar Wind Turbulence Evolution in the Sub-Mercury Inner Heliosphere

Author

Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, Richter, Ingo, Telloni, Daniele, Adhikari, Laxman, Zank, Gary P., Hadid, Lina Z., Sanchez-Cano, Beatriz, Sorriso-Valvo, Luca, Zhao, Lingling, Panasenco, Olga, Shi, Chen, Velli, Marco, Susino, Roberto, Verscharen, Daniel, Milillo, Anna, Alberti, Tommaso, Narita, Yasuhito, Verdini, Andrea, Grimani, Catia, Bruno, Roberto, D'Amicis, Raffaella, Perrone, Denise, Marino, Raffaele, Carbone, Francesco, Califano, Francesco, Malara, Francesco, Stawarz, Julia E., Laker, Ronan, Liberatore, Alessandro, Bale, Stuart D., Kasper, Justin C., Heyner, Daniel, de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Case, Anthony W., Korreck, Kelly E., Larson, Davin, Livi, Roberto, Stevens, Michael L., Whittlesey, Phyllis, Auster, Hans-Ulrich, and Richter, Ingo

Abstract

This letter exploits the radial alignment between the Parker Solar Probe and BepiColombo in late 2022 February, when both spacecraft were within Mercury's orbit. This allows the study of the turbulent evolution, namely, the change in spectral and intermittency properties, of the same plasma parcel during its expansion from 0.11 to 0.33 au, a still unexplored region. The observational analysis of the solar wind turbulent features at the two different evolution stages is complemented by a theoretical description based on the turbulence transport model equations for nearly incompressible magnetohydrodynamics. The results provide strong evidence that the solar wind turbulence already undergoes significant evolution at distances less than 0.3 au from the Sun, which can be satisfactorily explained as due to evolving slab fluctuations. This work represents a step forward in understanding the processes that control the transition from weak to strong turbulence in the solar wind and in properly modeling the heliosphere.

Published
2022
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17. Exploring the Solar Wind from Its Source on the Corona into the Inner Heliosphere during the First Solar Orbiter-Parker Solar Probe Quadrature

Author

Telloni, Daniele, Andretta, Vincenzo, Antonucci, Ester, Bemporad, Alessandro, Capuano, Giuseppe E., Fineschi, Silvano, Giordano, Silvio, Habbal, Shadia, Perrone, Denise, Pinto, Rui F., Sorriso-Valvo, Luca, Spadaro, Daniele, Susino, Roberto, Woodham, Lloyd D., Zank, Gary P., Romoli, Marco, Bale, Stuart D., Kasper, Justin C., Auchere, Frederic, Bruno, Roberto, Capobianco, Gerardo, Case, Anthony W., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., Da Deppo, Vania, De Leo, Yara, de Wit, Thierry Dudok, Frassati, Federica, Frassetto, Fabio, Goetz, Keith, Guglielmino, Salvo L., Harvey, Peter R., Heinzel, Petr, Jerse, Giovanna, Korreck, Kelly E., Landini, Federico, Larson, Davin, Liberatore, Alessandro, Livi, Roberto, MacDowall, Robert J., Magli, Enrico, Malaspina, David M., Massone, Giuseppe, Messerotti, Mauro, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Nistico, Giuseppe, Panasenco, Olga, Pancrazzi, Maurizio, Pelizzo, Maria G., Pulupa, Marc, Reale, Fabio, Romano, Paolo, Sasso, Clementina, Schuehle, Udo, Stangalini, Marco, Stevens, Michael L., Strachan, Leonard, Straus, Thomas, Teriaca, Luca, Uslenghi, Michela, Velli, Marco, Verscharen, Daniel, Volpicelli, Cosimo A., Whittlesey, Phyllis, Zangrilli, Luca, Zimbardo, Gaetano, Zuppella, Paola, Telloni, Daniele, Andretta, Vincenzo, Antonucci, Ester, Bemporad, Alessandro, Capuano, Giuseppe E., Fineschi, Silvano, Giordano, Silvio, Habbal, Shadia, Perrone, Denise, Pinto, Rui F., Sorriso-Valvo, Luca, Spadaro, Daniele, Susino, Roberto, Woodham, Lloyd D., Zank, Gary P., Romoli, Marco, Bale, Stuart D., Kasper, Justin C., Auchere, Frederic, Bruno, Roberto, Capobianco, Gerardo, Case, Anthony W., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., Da Deppo, Vania, De Leo, Yara, de Wit, Thierry Dudok, Frassati, Federica, Frassetto, Fabio, Goetz, Keith, Guglielmino, Salvo L., Harvey, Peter R., Heinzel, Petr, Jerse, Giovanna, Korreck, Kelly E., Landini, Federico, Larson, Davin, Liberatore, Alessandro, Livi, Roberto, MacDowall, Robert J., Magli, Enrico, Malaspina, David M., Massone, Giuseppe, Messerotti, Mauro, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Nistico, Giuseppe, Panasenco, Olga, Pancrazzi, Maurizio, Pelizzo, Maria G., Pulupa, Marc, Reale, Fabio, Romano, Paolo, Sasso, Clementina, Schuehle, Udo, Stangalini, Marco, Stevens, Michael L., Strachan, Leonard, Straus, Thomas, Teriaca, Luca, Uslenghi, Michela, Velli, Marco, Verscharen, Daniel, Volpicelli, Cosimo A., Whittlesey, Phyllis, Zangrilli, Luca, Zimbardo, Gaetano, and Zuppella, Paola

Abstract

This Letter addresses the first Solar Orbiter (SO)-Parker Solar Probe (PSP) quadrature, occurring on 2021 January 18 to investigate the evolution of solar wind from the extended corona to the inner heliosphere. Assuming ballistic propagation, the same plasma volume observed remotely in the corona at altitudes between 3.5 and 6.3 solar radii above the solar limb with the Metis coronagraph on SO can be tracked to PSP, orbiting at 0.1 au, thus allowing the local properties of the solar wind to be linked to the coronal source region from where it originated. Thanks to the close approach of PSP to the Sun and the simultaneous Metis observation of the solar corona, the flow-aligned magnetic field and the bulk kinetic energy flux density can be empirically inferred along the coronal current sheet with an unprecedented accuracy, allowing in particular estimation of the Alfven radius at 8.7 solar radii during the time of this event. This is thus the very first study of the same solar wind plasma as it expands from the sub-Alfvenic solar corona to just above the Alfven surface.

Published
2021
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