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Your search keyword '"Rivet, J.-P."' showing total 9 results
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9 results on '"Rivet, J.-P."'

1. Increasing the sensitivity of stellar intensity interferometry with optical telescopes: First laboratory test of spectral multiplexing

Author

Tolila, S, Labeyrie, G, Kaiser, R, Rivet, J. -P, and Guerin, W

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We present a preliminary laboratory test of a setup designed to measure Hanbury Brown and Twiss-type intensity correlations from a chaotic light source using five spectral channels simultaneously. After averaging the zero-delay correlation peaks from all channels, we obtain an improvement of the signalto-noise ratio fairly consistent with theory. The goal is to demonstrate the feasibility and scalability of this technique to improve the sensitivity of stellar intensity interferometry using optical telescopes.

Published
2024

2. Spin states of X-complex asteroids in the inner main belt -- I. Investigating the Athor and Zita collisional families

Author

Athanasopoulos, D., Hanuš, J., Avdellidou, C., van Belle, G., Ferrero, A., Bonamico, R., Gazeas, K., Delbo, M., Rivet, J. P., Apostolovska, G., Todorović, N., Novakovic, B., Bebekovska, E. V., Romanyuk, Y., Bolin, B. T., Zhou, W., and Agrusa, H.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

The aim of our study is to characterise the spin states of the members of the Athor and Zita collisional families and test whether these members have a spin distribution consistent with a common origin from the break up of their respective family parent asteroids. Our method is based on the asteroid family evolution, which indicates that there should be a statistical predominance of retrograde-rotating asteroids on the inward side of family's V-shape, and prograde-rotating asteroids on the outward side. We used photometric data from our campaign and the literature in order to reveal the spin states of the asteroids belonging to these families. We combined dense and sparse photometric data in order to construct lightcurves; we performed the lightcurve inversion method to estimate the sidereal period, spin axis and convex shape of several family members. We obtained 34 new asteroid models for Athor family members and 17 for Zita family members. Along with the literature and revised models, the Athor family contains 60% of retrograde asteroids on the inward side and, 76% of prograde asteroids on the outward side. We also found that the Zita family exhibits 80% of retrograde asteroids on the inward side and an equal amount of prograde and retrograde rotators on the outward side. However, when we applied Kernel density estimation, we also found a clear peak for prograde asteroids on the outward side, as expected from the theory. The spin states of these asteroids validate the existence of both families, with the Athor family exhibiting a stronger signature for the presence of retrograde-rotating and prograde-rotating asteroids on the inner and outer side of the family, respectively. Our work provides an independent confirmation and characterisation of these very old families, whose presence and characteristics offer constraints for theories and models of the Solar System's evolution.

Published
2024
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3. Multiband analyses of the bright GRB 230812B and the associated SN2023pel

Author

Sub GRASP, Gravitational and Subatomic Physics (GRASP), Hussenot-Desenonges, T., Wouters, T., Guessoum, N., Abdi, I., Abulwfa, A., Adami, C., Agüí Fernández, J. F., Ahumada, T., Aivazyan, V., Akl, D., Anand, S., Andrade, C. M., Antier, S., Ata, S. A., D'Avanzo, P., Azzam, Y. A., Baransky, A., Basa, S., Blazek, M., Bendjoya, P., Beradze, S., Boumis, P., Bremer, M., Brivio, R., Buat, V., Bulla, M., Burkhonov, O., Burns, E., Cenko, S. B., Coughlin, M. W., Corradi, W., Daigne, F., Dietrich, T., Dornic, D., Ducoin, J. G., Duverne, P. A., Elhosseiny, E. G., Elnagahy, F. I., El-Sadek, M. A., Ferro, M., Le Floc'H, E., Freeberg, M., Fynbo, J. P.U., Götz, D., Gurbanov, E., Hamed, G. M., Hasanov, E., Healy, B. F., Heintz, K. E., Hello, P., Inasaridze, R., Iskandar, A., Ismailov, N., Izzo, L., Jhawar, S., Jegou du Laz, T., Kamel, T. M., Karpov, S., Klotz, A., Koulouridis, E., Kuin, N. P., Kochiashvili, N., Leonini, S., Lu, K. X., Malesani, D. B., Mašek, M., Mao, J., Melandri, A., Mihov, B. M., Natsvlishvili, R., Navarete, F., Nedora, V., Nicolas, J., Odeh, M., Palmerio, J., Pang, P. T.H., De Pasquale, M., Peng, H. W., Pormente, S., Peloton, J., Pradier, T., Pyshna, O., Rajabov, Y., Rakotondrainibe, N. A., Rivet, J. P., Rousselot, L., Saccardi, A., Sasaki, N., Schneider, B., Serrau, M., Shokry, A., Slavcheva-Mihova, L., Simon, A., Sokoliuk, O., Srinivasaragavan, G., Strausbaugh, R., Takey, A., Tanvir, N. R., Thöne, C. C., Tillayev, Y., Tosta e Melo, I., Turpin, D., de Ugarte Postigo, A., Vasylenko, V., Vergani, S. D., Vidadi, Z., Xu, D., Wang, L. T., Wang, X. F., Winters, J. M., Zhang, X. L., Zhu, Z., Sub GRASP, Gravitational and Subatomic Physics (GRASP), Hussenot-Desenonges, T., Wouters, T., Guessoum, N., Abdi, I., Abulwfa, A., Adami, C., Agüí Fernández, J. F., Ahumada, T., Aivazyan, V., Akl, D., Anand, S., Andrade, C. M., Antier, S., Ata, S. A., D'Avanzo, P., Azzam, Y. A., Baransky, A., Basa, S., Blazek, M., Bendjoya, P., Beradze, S., Boumis, P., Bremer, M., Brivio, R., Buat, V., Bulla, M., Burkhonov, O., Burns, E., Cenko, S. B., Coughlin, M. W., Corradi, W., Daigne, F., Dietrich, T., Dornic, D., Ducoin, J. G., Duverne, P. A., Elhosseiny, E. G., Elnagahy, F. I., El-Sadek, M. A., Ferro, M., Le Floc'H, E., Freeberg, M., Fynbo, J. P.U., Götz, D., Gurbanov, E., Hamed, G. M., Hasanov, E., Healy, B. F., Heintz, K. E., Hello, P., Inasaridze, R., Iskandar, A., Ismailov, N., Izzo, L., Jhawar, S., Jegou du Laz, T., Kamel, T. M., Karpov, S., Klotz, A., Koulouridis, E., Kuin, N. P., Kochiashvili, N., Leonini, S., Lu, K. X., Malesani, D. B., Mašek, M., Mao, J., Melandri, A., Mihov, B. M., Natsvlishvili, R., Navarete, F., Nedora, V., Nicolas, J., Odeh, M., Palmerio, J., Pang, P. T.H., De Pasquale, M., Peng, H. W., Pormente, S., Peloton, J., Pradier, T., Pyshna, O., Rajabov, Y., Rakotondrainibe, N. A., Rivet, J. P., Rousselot, L., Saccardi, A., Sasaki, N., Schneider, B., Serrau, M., Shokry, A., Slavcheva-Mihova, L., Simon, A., Sokoliuk, O., Srinivasaragavan, G., Strausbaugh, R., Takey, A., Tanvir, N. R., Thöne, C. C., Tillayev, Y., Tosta e Melo, I., Turpin, D., de Ugarte Postigo, A., Vasylenko, V., Vergani, S. D., Vidadi, Z., Xu, D., Wang, L. T., Wang, X. F., Winters, J. M., Zhang, X. L., and Zhu, Z.

Published
2024

4. Multiband analyses of the bright GRB 230812B and the associated SN2023pel

Author

Hussenot-desenonges, T, Wouters, T, Guessoum, N, Abdi, I, Abulwfa, A, Adami, C, Agüí fernández, J F, Ahumada, T, Aivazyan, V, Akl, D, Anand, S, Andrade, C M, Antier, S, Ata, S A, D’avanzo, P, Azzam, Y A, Baransky, A, Basa, S, Blazek, M, Bendjoya, P, Beradze, S, Boumis, P, Bremer, M, Brivio, R, Buat, V, Bulla, M, Burkhonov, O, Burns, E, Cenko, S B, Coughlin, M W, Corradi, W, Daigne, F, Dietrich, T, Dornic, D, Ducoin, J -g, Duverne, P -a, Elhosseiny, E G, Elnagahy, F I, El-sadek, M A, Ferro, M, Le floc’h, E, Freeberg, M, Fynbo, J P U, Götz, D, Gurbanov, E, Hamed, G M, Hasanov, E, Healy, B F, Heintz, K E, Hello, P, Inasaridze, R, Iskandar, A, Ismailov, N, Izzo, L, Jhawar, S, Jegou du laz, T, Kamel, T M, Karpov, S, Klotz, A, Koulouridis, E, Kuin, N P, Kochiashvili, N, Leonini, S, Lu, K -x, Malesani, D B, Mašek, M, Mao, J, Melandri, A, Mihov, B M, Natsvlishvili, R, Navarete, F, Nedora, V, Nicolas, J, Odeh, M, Palmerio, J, Pang, P T H, De pasquale, M, Peng, H W, Pormente, S, Peloton, J, Pradier, T, Pyshna, O, Rajabov, Y, Rakotondrainibe, N A, Rivet, J -p, Rousselot, L, Saccardi, A, Sasaki, N, Schneider, B, Serrau, M, Shokry, A, Slavcheva-mihova, L, Simon, A, Sokoliuk, O, Srinivasaragavan, G, Strausbaugh, R, Takey, A, Tanvir, N R, Thöne, C C, Tillayev, Y, Melo, I Tosta E, Turpin, D, De ugarte postigo, A, Vasylenko, V, Vergani, S D, Vidadi, Z, Xu, D, Wang, L T, Wang, X F, Winters, J M, Zhang, X -l, Zhu, Z, Hussenot-desenonges, T, Wouters, T, Guessoum, N, Abdi, I, Abulwfa, A, Adami, C, Agüí fernández, J F, Ahumada, T, Aivazyan, V, Akl, D, Anand, S, Andrade, C M, Antier, S, Ata, S A, D’avanzo, P, Azzam, Y A, Baransky, A, Basa, S, Blazek, M, Bendjoya, P, Beradze, S, Boumis, P, Bremer, M, Brivio, R, Buat, V, Bulla, M, Burkhonov, O, Burns, E, Cenko, S B, Coughlin, M W, Corradi, W, Daigne, F, Dietrich, T, Dornic, D, Ducoin, J -g, Duverne, P -a, Elhosseiny, E G, Elnagahy, F I, El-sadek, M A, Ferro, M, Le floc’h, E, Freeberg, M, Fynbo, J P U, Götz, D, Gurbanov, E, Hamed, G M, Hasanov, E, Healy, B F, Heintz, K E, Hello, P, Inasaridze, R, Iskandar, A, Ismailov, N, Izzo, L, Jhawar, S, Jegou du laz, T, Kamel, T M, Karpov, S, Klotz, A, Koulouridis, E, Kuin, N P, Kochiashvili, N, Leonini, S, Lu, K -x, Malesani, D B, Mašek, M, Mao, J, Melandri, A, Mihov, B M, Natsvlishvili, R, Navarete, F, Nedora, V, Nicolas, J, Odeh, M, Palmerio, J, Pang, P T H, De pasquale, M, Peng, H W, Pormente, S, Peloton, J, Pradier, T, Pyshna, O, Rajabov, Y, Rakotondrainibe, N A, Rivet, J -p, Rousselot, L, Saccardi, A, Sasaki, N, Schneider, B, Serrau, M, Shokry, A, Slavcheva-mihova, L, Simon, A, Sokoliuk, O, Srinivasaragavan, G, Strausbaugh, R, Takey, A, Tanvir, N R, Thöne, C C, Tillayev, Y, Melo, I Tosta E, Turpin, D, De ugarte postigo, A, Vasylenko, V, Vergani, S D, Vidadi, Z, Xu, D, Wang, L T, Wang, X F, Winters, J M, Zhang, X -l, and Zhu, Z

Published
2024

5. Spin states of X-complex asteroids in the inner main belt: I. Investigating Athor and Zita collisional families.

Author

Athanasopoulos, D., Hanuš, J., Avdellidou, C., van Belle, G., Ferrero, A., Bonamico, R., Gazeas, K., Delbo, M., Rivet, J. P., Apostolovska, G., Todorović, N., Novakovic, B., Bebekovska, E. V., Romanyuk, Y., Bolin, B. T., Zhou, W., and Agrusa, H.

Subjects
NEAR-earth asteroids, SMALL solar system bodies, PROBABILITY density function, LIGHT curves, SOLAR system, ASTEROIDS
Abstract

Context. Based on the V-shape search method, two families, Athor and Zita, have been identified within the X-complex population of asteroids located in the inner main belt. The Athor family is ~3 Gyr old while the Zita family could be as old as the Solar System. Both families were found to be capable of delivering near-Earth asteroids (NEAs). Moreover, the Athor family was linked to the low-iron enstatite (EL) meteorites. Aims. The aim of our study is to characterise the spin states of the members of the Athor and Zita collisional families and test whether these members have a spin distribution consistent with a common origin from the break up of their respective family parent asteroids. Methods. To perform this test, our method is based on the well-established asteroid family evolution, which indicates that there should be a statistical predominance of retrograde-rotating asteroids on the inward side of family's V-shape, and prograde-rotating asteroids on the outward side of family's V-shape. To implement the method, we used photometric data from our campaign and the literature in order to reveal the spin states, and hence their rotation sense (prograde or retrograde), of the asteroids belonging to these families. We combined dense and sparse-in-time photometric data in order to construct asteroid rotational light curves; we performed the light curve inversion method to estimate the sidereal period and 3D convex shape along with the spin axis orientation in space of several family member asteroids. Results. We obtained 34 new asteroid models for Athor family members and 17 for Zita family members. Along with the literature and revised models, the Athor family contains 60% (72% considering only the family's core) of retrograde asteroids on the inward side and, conversely, 76% (77% considering only the family's core) of prograde asteroids on the outward side. We also found that the Zita family exhibits 80% of retrograde asteroids on the inward side. In addition, the Zita family presents an equal amount of prograde and retrograde rotators (50% each) on the outward side. However, when we applied Kernel density estimation (KDE), we also found a clear peak for prograde asteroids on the outward side, as expected from the theory. Conclusions. The spin states of these asteroids validate the existence of both families, with the Athor family exhibiting a stronger signature for the presence of retrograde-rotating and prograde-rotating asteroids on the inner and outer side of the family, respectively. Our work provides an independent confirmation and characterisation of these very old families, whose presence and characteristics offer constraints for theories and models of the Solar System's evolution. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Multi-band analyses of the bright GRB 230812B and the associated SN2023pel

Author

Hussenot-Desenonges, T, primary, Wouters, T, additional, Guessoum, N, additional, Abdi, I, additional, Abulwfa, A, additional, Adami, C, additional, Fernández, J F Agüí, additional, Ahumada, T, additional, Aivazyan, V, additional, Akl, D, additional, Anand, S, additional, Andrade, C M, additional, Antier, S, additional, Ata, S A, additional, D’Avanzo, P, additional, Azzam, Y A, additional, Baransky, A, additional, Basa, S, additional, Blazek, M, additional, Bendjoya, P, additional, Beradze, S, additional, Boumis, P, additional, Bremer, M, additional, Brivio, R, additional, Buat, V, additional, Bulla, M, additional, Burkhonov, O, additional, Burns, E, additional, Cenko, S B, additional, Coughlin, M W, additional, Corradi, W, additional, Daigne, F, additional, Dietrich, T, additional, Dornic, D, additional, Ducoin, J-G, additional, Duverne, P-A, additional, Elhosseiny, E G, additional, Elnagahy, F I, additional, El-Sadek, M A, additional, Ferro, M, additional, Le Floc’h, E, additional, Freeberg, M, additional, Fynbo, J P U, additional, Götz, D, additional, Gurbanov, E, additional, Hamed, G M, additional, Hasanov, E, additional, Healy, B F, additional, Heintz, K E, additional, Hello, P, additional, Inasaridze, R, additional, Iskandar, A, additional, Ismailov, N, additional, Izzo, L, additional, Jhawar, S, additional, du Laz, T Jegou, additional, Kamel, T M, additional, Karpov, S, additional, Klotz, A, additional, Koulouridis, E, additional, Kuin, N P, additional, Kochiashvili, N, additional, Leonini, S, additional, Lu, K-X, additional, Malesani, D B, additional, Mašek, M, additional, Mao, J, additional, Melandri, A, additional, Mihov, B M, additional, Natsvlishvili, R, additional, Navarete, F, additional, Nedora, V, additional, Nicolas, J, additional, Odeh, M, additional, Palmerio, J, additional, Pang, P T H, additional, De Pasquale, M, additional, Peng, H W, additional, Pormente, S, additional, Peloton, J, additional, Pradier, T, additional, Pyshna, O, additional, Rajabov, Y, additional, Rakotondrainibe, N A, additional, Rivet, J-P, additional, Rousselot, L, additional, Saccardi, A, additional, Sasaki, N, additional, Schneider, B, additional, Serrau, M, additional, Shokry, A, additional, Slavcheva-Mihova, L, additional, Simon, A, additional, Sokoliuk, O, additional, Srinivasaragavan, G, additional, Strausbaugh, R, additional, Takey, A, additional, Tanvir, N R, additional, Thöne, C C, additional, Tillayev, Y, additional, Melo, I Tosta e, additional, Turpin, D, additional, de Ugarte Postigo, A, additional, Vasylenko, V, additional, Vergani, S D, additional, Vidadi, Z, additional, Xu, D, additional, Wang, L T, additional, Wang, X F, additional, Winters, J M, additional, Zhang, X-L, additional, and Zhu, Z, additional

Published
2024
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7. Ready for O4 II: GRANDMA observations of Swift GRBs over eight weeks in spring 2022

Author

Tosta e Melo, I., primary, Ducoin, J.-G., additional, Vidadi, Z., additional, Andrade, C., additional, Rupchandani, V., additional, Agayeva, S., additional, Abdelhadi, J., additional, Abe, L., additional, Aguerre-Chariol, O., additional, Aivazyan, V., additional, Alishov, S., additional, Antier, S., additional, Bai, J.-M., additional, Baransky, A., additional, Bednarz, S., additional, Bendjoya, Ph., additional, Benkhaldoun, Z., additional, Beradze, S., additional, Bizouard, M. A., additional, Bhardwaj, U., additional, Blazek, M., additional, Boër, M., additional, Broens, E., additional, Burkhonov, O., additional, Christensen, N., additional, Cooke, J., additional, Corradi, W., additional, Coughlin, M. W., additional, Culino, T., additional, Daigne, F., additional, Dornic, D., additional, Duverne, P.-A., additional, Ehgamberdiev, S., additional, Eymar, L., additional, Fouad, A., additional, Freeberg, M., additional, Gendre, B., additional, Guo, F., additional, Gokuldass, P., additional, Guessoum, N., additional, Gurbanov, E., additional, Hainich, R., additional, Hasanov, E., additional, Hello, P., additional, Inasaridze, R., additional, Iskandar, A., additional, Ismailov, N., additional, Janati, A., additional, Jegou du Laz, T., additional, Kann, D. A., additional, Karpov, S., additional, Kiendrebeogo, R. W., additional, Klotz, A., additional, Kneip, R., additional, Kochiashvili, N., additional, Kaeouach, A., additional, Kruiswijk, K., additional, Lamoureux, M., additional, Leroy, N., additional, Lin, W. L., additional, Mao, J., additional, Marchais, D., additional, Mašek, M., additional, Midavaine, T., additional, Moller, A., additional, Morris, D., additional, Natsvlishvili, R., additional, Navarete, F., additional, Nicuesa Guelbenzu, A., additional, Noonan, K., additional, Noysena, K., additional, Oksanen, A., additional, Orange, N. B., additional, Pellouin, C., additional, Peloton, J., additional, Peng, H. W., additional, Pilloix, M., additional, Popowicz, A., additional, Pradier, T., additional, Pyshna, O., additional, Raaijmakers, G., additional, Rajabov, Y., additional, Rau, A., additional, Rinner, C., additional, Rivet, J.-P., additional, Ryh, A. S., additional, Sabil, M., additional, Sadibekova, T., additional, Sasaki, N., additional, Serrau, M., additional, Simon, A., additional, Shokry, A., additional, Smith, K., additional, Sokoliuk, O., additional, Song, X., additional, Takey, A., additional, Thierry, P., additional, Tillayev, Y., additional, Turpin, D., additional, de Ugarte Postigo, A., additional, Vasylenko, V., additional, Vernet, D., additional, Wang, L., additional, Vachier, F., additional, Vignes, J. P., additional, Wang, X. F., additional, Zeng, X., additional, Zhang, J., additional, and Zhu, Y., additional

Published
2024
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9. Pemphigus superficiel photo-déclenché

Author

Battesti, G., Burnouf, M., Bozonnat, A., Raby, M., Rivet, J., Molinier, R., Mahévas, T., Jachiet, M., Bouaziz, J.D., Comte, C., and Lepelletier, C.

Abstract

Si dans la forme séborrhéique du pemphigus superficiel (PS), les lésions peuvent prédominer sur des zones découvertes (visage, cuir chevelu, région cervicale), l’exposition solaire n’est classiquement pas un facteur déterminant de la maladie. Nous rapportons un cas original de PS photo-déclenché et photo-démarqué.

Published
2024
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