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21 results on '"Ortiz, José Luiz"'

1. 2003 AZ84: Size, shape, albedo and first detection of topographic features

Author

Dias-Oliveira, Alex, Sicardy, Bruno, Ortiz, José Luiz, Braga-Ribas, F., Vieira Martins, Roberto, Benedetti-Rossi, G., Camargo, J. I. B., Assafin, Marcelo, Gomes-Júnior, A. R., Baug, Tapas, Chandrasekhar, Thyagarajan, Duffard, René, Ergang, Zhao, Ganesh, Shashkiran, Ikari, Y., Irawati, Puji, Jain, Rajmal, Liying, Zhu, Richichi, Andrea, Shengbang, Qian, Behrend, Raoul, Benkhaldoun, Zouhair, Brosch, N., Daassou, Ahmed, Gal-Yam, Avishay, Garcia-Lozano, Rubén, Gillon, Michel, Jehin, Emmanuel, Kaspi, Shai, Klotz, Alain, Lecacheux, Jean, Mahasena, Putra, Manfroid, Jean, Manulis, Ilan, Maury, Alain, Mohan, Vijay, Morales, Nicolas, Rinner, Claudine, Roques, Françoise, Sharma, Amar, Sposetti, Stefano, Tanga, Paolo, Thirouin, Audrey, Vachier, Frédéric, Widemann, Thomas, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

2. HST observations of Chiron: preliminary results

Author

Benedetti-Rossi, G., Sicardy, Bruno, Buie, M. W., Braga-Ribas, F., Ortiz, José Luiz, Duffard, René, Camargo, J. I. B., Vieira Martins, Roberto, Gratadour, Damien, Dumas, Christophe, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Haute résolution angulaire en astrophysique, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and Pôle Planétologie du LESIA

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

3. Chariklo's size, shape and orientation from stellar occultations

Author

Bérard, Diane, Sicardy, Bruno, Assafin, Marcelo, Braga-Ribas, F., Camargo, J. I. B., Vieira Martins, Roberto, Duffard, René, Ortiz, José Luiz, Snodgrass, Colin, Jehin, Emmanuel, Pollock, Joseph T., Colas, François, Dauvergne, Jean-Luc, Lecacheux, Jean, Maquet, Lucie, Sickafoose, Amanda A., Bath, Karl Ludwig, Beisker, Wolfgang, Leiva, Rodrigo, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Observatório do Valongo, Universidade Federal do Rio de Janeiro, Federal University of Technology (UTFPR/DAFIS) - Parana, Observatório Nacional/MCTI, Instituto de Astrofisica de Andalucia, CSIC (IAA), CEPSAR, The Open University, University of Liège, Physics and Astronomy department, Camosun College, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Astéroïdes, comètes, météores et éphémérides (ACME), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Systèmes de Référence Temps Espace (SYRTE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Department of Earth Atmospheric and Planetary Sciences, MIT, and International Occultation Timing Association, European Section (IOTA/ES)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; Chariklo is the largest Centaur object known to date, and it is surrounded by dense and narrow rings (Braga-Ribas et al. Nature 508, 72, 2014). The size, shape and orientation of the central body are important parameters to better understand the dynamics of the rings.In that context, we have analyzed three stellar occultations by Chariklo and its main ring observed on June 3, 2013, April 29, 2014 and June 28, 2014. Elliptical limb fitting to Chariklo's main body occultation chords has been performed, where we denote a (resp. b) the semi-major (resp. semi-minor) axis of the limb. Preliminary results indicate that Chariklo's limb is elliptical with axes ratio b/a~0.89. We obtain a~133 km and b~119 km, providing an equivalent radius of Requiv=&surd;(ab)~126 km. The rms dispersion of the fit, about 4 km, is compatible with local topographic features on a small icy body. For comparison, an equivalent radius of Requiv= 119±5 km, based on thermal data, is given by Fornasier et al, AA 518, L11, 2014, while Duffard et al. AA 568, A79, 2014 estimate a= 122 km and b= 117 km.Our results are obtained under the simplifying assumption that the main ring is circular and that its center coincides with that of Chariklo. Caveats and error bars will be discussed, and dynamical implications will be presented. In particular, rough estimations of the ring apsidal precession rates will be given, as well as constraints on Chariklo's density.

Published
2015

4. The November 14th, 2014 Stellar Occultation by the TNO 2007UK126

Author

Benedetti-Rossi, G., Braga-Ribas, F., Sicardy, Bruno, Buie, M., Vieira Martins, Roberto, Camargo, J. I. B., Assafin, Marcelo, Ortiz, José Luiz, Desmars, Josselin, Observatório Nacional/MCTI, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Planetology and Environments from Ground Astrometry and Space Exploration (PEGASE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; We report the observation of a multi-chord stellar occultation by the transneptunian object (TNO) 2007 UK126. The event was observed by the RECON network and other collaborators on November 14, 2014 UT from seven sites in the United States. With a diameter of about 600 km and orbiting at about 43.5 AU, this recently discovered object is listed as highly likely a dwarf planet. Some of its physical parameters could be derived from this occultation.

Published
2015

5. Lessons learned from stellar occultations by Trans-Neptunian Objects and prospects for the future

Author

Ortiz, José Luiz, Sicardy, Bruno, Braga-Ribas, F., Morales, Nicolas, Duffard, René, Santos-Sanz, Pablo, Vieira Martins, Roberto, Camargo, J. I. B., Assafin, Marcelo, Roques, Françoise, Widemann, Thomas, Lecacheux, Jean, Colas, François, Instituto de Astrofisica de Andalucia, CSIC (IAA), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Observatório Nacional/MCTI, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Astronomie et systèmes dynamiques (ASD), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Groupe Astrométrie et Planétologie (GAP), and Observatório do Valongo, Universidade Federal do Rio de Janeiro

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; The best way to derive physical properties of solar system bodies is to send spacecraft to observe them. Probably the second best means to learn about important physical properties of solar system objects is through stellar occultations. Since October 2009, when the first stellar occultation by a Trans- Neptunian Object other than Pluto was recorded, around seventeen more occultations by Trans- Neptunian Objects have been detected, thanks to the efforts of several teams. Due to the complications of accurately predicting and observing these events, most of the successes have been achieved by an international collaboration of three main teams that coordinate different important aspects, but there have also been other successes in the field. Nevertheless, most of the successes involved large groups of researchers and even amateurs. Here we present a preliminary and brief summary of some of the results obtained thus far as well as a summary on some of the lessons learned to improve the rate of success. A key issue is involving large groups of observers once an accurate prediction has been made.

Published
2014

6. The May 4, 2013 Stellar Occultation by Pluto and Implications for Pluto's Atmosphere

Author

Olkin, Catherine B., Young, Leslie A., Borncamp, D., Pickles, A., Sicardy, Bruno, Assafin, Marcelo, Bianco, F. B., Buie, M., Colas, François, Dias-Oliveira, Alex, Gillon, Michel, French, Richard G., Gomes, A. Ramos, Jehin, Emmanuel, Morales, Nicolas, Opitom, Cyrielle, Ortiz, José Luiz, Maury, Alain, Norbury, M., Ribas, F. B., Smith, R., Wasserman, L. H., Young, E. F., Zacharias, M., Zacharias, Norbert, SwRI, Las Cumbres Observatory, Goleta, Observatoire de Paris, Université Paris sciences et lettres (PSL), Observatório do Valongo, Universidade Federal do Rio de Janeiro, Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Groupe Astrométrie et Planétologie (GAP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Observatorio Nacional / MCTI, Brazil, University of Liège, Wellesley College, Instituto de Astrofisica de Andalucia, CSIC (IAA), San Pedro de Atacama Celestial Explorations, Astrophysics Research Institute [Liverpool] (ARI), Liverpool John Moores University (LJMU), Lowell Observatory, Flagstaff, United States Naval Observatory (USNO), and Henry, Florence

Subjects
[PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; On May 4 2013, Pluto passed in front of a 14 star and the shadow was well observed from multiple occultation groups. This paper presents results from the three light curves observed at Las Cumbres Observatory Global Telescope Network (LCOGT) from their Cerro Tololo site. The three LCOGT telescopes have 1.0 m apertures and used identical frame-transfer cameras. The cameras currently have a 2 second readout time therefore autonomous observations were scheduled with different exposure times to give good time resolution of the event. We will present results of this occultation and compare occultation results from 1988 to 2013 with volatile transport models.

Published
2013

7. Stellar Occultations by Large TNOs on 2012: The February 3rd by (208996) 2003 AZ84, and the February 17th by (50000) Quaoar

Author

Braga-Ribas, F., Sicardy, Bruno, Ortiz, José Luiz, Duffard, René, Camargo, J. I. B., Lecacheux, Jean, Colas, François, Vachier, Frédéric, Tanga, Paolo, Sposetti, Stefano, Brosch, N., Kaspi, Shai, Manulis, Ilan, Baug, Tapas, Chandrasekhar, T., Ganesh, Shashkiran, Jain, J., Mohan, Vijay, Sharma, Amar, Garcia-Lozano, Rubén, Klotz, Alain, Frappa, Eric, Jehin, Emmanuel, Assafin, Marcelo, Vieira Martins, Roberto, Behrend, Raoul, Roques, Françoise, Widemann, Thomas, Morales, Nicolas, Thirouin, Audrey, Mahasena, Putra, Benkhaldoun, Zouhair, Daassou, Ahmed, Rinner, Claudine, Ofek, E. O., Henry, Florence, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Instituto de Astrofisica de Andalucia, CSIC (IAA), Observatorio Nacional / MCTI, Brazil, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Groupe Astrométrie et Planétologie (GAP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA), Gnosca Observatory, Tel Aviv University (TAU), Weizmann Institute of Science, Israel, Physical Research Laboratory, Astronomy & Astrophysics Division, Inter-University Centre for Astronomy and Astrophysics (IUCAA), UP State Observatory, Observatorio Nazaret, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Euraster, University of Liège, Observatório do Valongo, Universidade Federal do Rio de Janeiro, Observatoire de Genève, Department of Astronomy and Bosscha Observatory, Oukaimeden Observatory, LPHEA, Cadi Ayyad University, Morocco, and Moroccan Oukaimeden Sky Survey, Morocco

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; On February 2012, two stellar occultation's by large Trans-neptunian Objects (TNO's) were observed by our group. On the 3rd, an event by (208996) 2003 AZ84 was recorded from Mont Abu Observatory and IUCAA Girawali Observatory in India and from Weizmann Observatory in Israel. On the 17th, a stellar occultation by (50000) Quaoar was observed from south France and Switzerland. Both occultations are the second observed by our group for each object, and will be used to improve the results obtained on the previous events. The occultation by 2003 AZ84 is the first multi-chord event recorded for this object. From the single chord event on January 8th 2011, Braga-Ribas et al. 2011 obtained a lower limit of 573 /- 21 km. From the 2012 occultation the longest chord has a size of 662 /- 50 km. The other chords will permit to determine the size and shape of the TNO, and derive other physical parameters, such as the geometric albedo. The Quaoar occultation was observed from south of France (Observatoire de la Côte d'Azur, TAROT telescope and Valensole) and from Gnosca, Switzerland. Unfortunately, all three sites in France are almost at the same Quaoar's latitude, so in practice, we have two chords that can be used to fit Quaoar's limb. The resulting fit will be compared with the results obtained by Braga-Ribas et al. 2011. Braga-Ribas F., Sicardy B., et al. 2011, EPSC-DPS2011, 1060.Ribas F., Sicardy B., et al. 2011, EPSC-DPS2011, 1060.

Published
2012

8. Size, density, albedo and atmosphere limit of dwarf planet Eris from a stellar occultation

Author

Sicardy, Bruno, Ortiz, José Luiz, Assafin, Marcelo, Jehin, Emmanuel, Maury, Alain, Lellouch, Emmanuel, Gil-Hutton, Ricardo, Braga-Ribas, F., Colas, François, Lecacheux, Jean, Roques, Françoise, Santos-Sanz, Pablo, Morales, Nicolas, Thirouin, Audrey, Camargo, J. I. B., Vieira Martins, Roberto, Gillon, Michel, Manfroid, Jean, Behrend, Raoul, Widemann, Thomas, Instituto de Astrofisica de Andalucia, CSIC (IAA), Observatório do Valongo, Universidade Federal do Rio de Janeiro, University of Liège, San Pedro de Atacama Celestial Explorations, Observatoire de Paris, Université Paris sciences et lettres (PSL), Complejo Astronomico El Leoncito and San Juan National University, Argentina, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Observatorio Nacional / MCT, Brazil, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; We report the observation of a multi-chord stellar occultation by the dwarf planet (136199) Eris. The event was observed on November 6, 2010 UT, from two sites in Chile. Our observation is consistent with a spherical Eris with radius RE=1163±6 km, density ?=2.52±0.05 g cm-3, and visible geometric albedo pV=0.96 0.09 -0.04. Besides being remarkably similar in size to Pluto, Eris appears as one of the intrinsically brightest objects of the solar system, with a density suggesting a mainly rocky interior. Upper limits of about 1 nbar are derived for the surface pressure of possible nitrogen, argon or methane atmospheres of the dwarf planet.

Published
2011

9. Prediction for TNO occultations: contradictions to observations

Author

Braga-Ribas, F., Sicardy, Bruno, Vieira Martins, Roberto, Assafin, Marcelo, Camargo, J. I. B., Ortiz, José Luiz, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Astronomie et systèmes dynamiques (ASD), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Groupe Astrométrie et Planétologie (GAP)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2011

10. Stellar Occultations by TNOs: the January 08, 2011 by (208996) 2003 AZ84 and the May 04, 2011 by (50000) Quaoar

Author

Braga-Ribas, F., Sicardy, Bruno, Ortiz, José Luiz, Jehin, Emmanuel, Camargo, J. I. B., Assafin, Marcelo, Behrend, Raoul, Unda-Sanzana, E., Colque, J. P., Morales, Nicolas, Tancredi, Gonzalo, Roland, S., Bruzzone, S., Salvo, R., Almenares, L., Emilio, Marcelo, Schoenell, William, Gil-Hutton, Ricardo, Milone, A. C., Jacques, C., Vanzi, Leonardo, Kavelaars, J. J., Cacella, P., Maury, Alain, Alvarez, E., van der Bliek, N. S., Vieira Martins, Roberto, Colas, François, Lecacheux, Jean, Vachier, Frédéric, Roques, Françoise, Widemann, Thomas, Thirouin, Audrey, Gillon, Michel, Manfroid, Jean, Bergengruen, A., Martínez, M., Capeche, J., Amorim, A., Pimentel, E., Leiva, Rodrigo, Toledo, I., Almeida, L. A., Magalhães, V. S., Montaña, C. E., Rodrigues, C. V., Henry, Florence, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Observatorio Nacional/MCT, Brazil, Instituto de Astrofisica de Andalucia, CSIC (IAA), University of Liège, Observatório do Valongo, Universidade Federal do Rio de Janeiro, Observatoire de Genève, Instituto de Astronomia, Universidad Catolica del Norte, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; Between February 2010 and May 2011, our group has observed five stellar occultations by Trans-Neptunian Objects (TNOs), giving the size and shape for some of the biggest TNO's: Varuna, Eris, 2003 AZ84, Makemake and Quaoar. Here we present two of them: the January 08 stellar occultation by 2003 AZ84, and the May 04 by Quaoar. For the event of 2003 AZ84 we obtained one positive and another negative occultation chords in Chile. We give a lower limit to the diameter of the TNO. The event of Quaoar was observed from 16 sites distributed in Uruguay, Argentina, Chile and Brazil. Five of them yielded positive detection of the occultation. A preliminary analysis shows that the body is probably elongated and significantly bigger than the size determined by Fraser & Brown 2010, with a diameter of 890km. Using the size determined by the occultation, we will discuss the implications for the body density and albedo determination. The upper limit of the atmosphere is also studied.

Published
2011

11. A Photometric And Astrometric Study Of The Trans-neptunian Object Orcus

Author

Ortiz, José Luiz, Cikota, A., Cikota, S., Hestroffer, Daniel, Thirouin, Audrey, Morales, Nicolas, Duffard, René, Gil-Hutton, Ricardo, Santos-Sanz, Pablo, de la Cueva, I., Instituto de Astrofisica de Andalucia, CSIC (IAA), Physik-Institut, Universität Zürich, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Complejo Astronómico El Leoncito (CASLEO), and Astroimagen

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; We obtained high precision relative astrometry and photometry of Orcus' system with respect to background stars. The Right Ascension residuals of an orbital fit to the astrometric data revealed a period of 9.7 ± 0.3 days, which is what one would expect to be induced by the known Orcus companion (Vanth). The residuals also are correlated with the theoretical positions of the satellite relative to the primary. The oscillation in the residuals is due to the photocenter motion of the combined Orcus plus satellite system around the barycenter along an orbital revolution of the satellite. We show here that detecting some binaries through a carefully devised astrometric technique might be feasible with telescopes of moderate size. We have also analyzed the system's mid-term photometry in order to determine whether the rotation could be tidally locked to the satellite's orbital period. We found that a photometric variability of 9.7 ± 0.3 days is clear in our data, nearly coincident with the orbital period of the satellite. We believe this variability might be induced by the satellite's rotation. In our photometry there is also a slight hint for an additional very small variability in the 10 hr range that was already reported in the literature. Such short-term variability would indicate that the primary is not tidally locked and therefore the system would not have reached a double synchronous state. From angular momentum considerations we suspect that Orcus satellite might have formed from a rotational fission. This requires that the mass of the satellite would be around 0.09 times that of the primary, close to the value that one derives by using an albedo of 0.12 for the satellite and assuming equal densities for both the primary and secondary.

Published
2010

12. Astrometry and photometry of Orcus from a 33-day campaign

Author

Ortiz, José Luiz, Cikota, A., Hestroffer, Daniel, Cikota, S., Thirouin, Audrey, Molina, Antonio, Morales, Nicolas, Duffard, René, Gil-Hutton, Ricardo, Santos-Sanz, Pablo, Instituto de Astrofisica de Andalucia, CSIC (IAA), Physik-Institut, Universität Zürich, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Universidad de Granada = University of Granada (UGR), and Complejo Astronómico El Leoncito (CASLEO)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; Not Available

Published
2010

13. Herschel Open Time Key Programme---TNOs are Cool: A Survey of the Transneptunian Region

Author

Müller, Thomas G., Lellouch, Emmanuel, Böhnhardt, Hermann, Stansberry, John A., Barucci, Maria Antonella, Crovisier, Jacques, Delsanti, Audrey, Doressoundiram, Alain, Dotto, Elisabetta, Duffard, René, Fornasier, Sonia, Groussin, Olivier, Gutierrez, Pedro J., Hainaut, Olivier, Harris, Alan W., Hartogh, Paul, Hestroffer, Daniel, Horner, Jonathan, Jewitt, Dave, Kidger, Mark R., Kiss, Csaba, Lacerda, Pedro, Lara, Luisa M., Lim, Tanya L., Mueller, Michael, Moreno, Raphaël, Ortiz, José Luiz, Rengel, Miriam, Santos-Sanz, Pablo, Swinyard, Bruce, Thomas, Nicholas, Trilling, David E., Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Astronomie du LESIA, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2008

14. Hershel Open Time Key Programme: TNOs are Cool: A Survey of the Transneptunian Region

Author

Müller, Thomas G., Lellouch, Emmanuel, Böhnhardt, Hermann, Stansberry, John A., Barucci, Maria Antonella, Crovisier, Jacques, Delsanti, Audrey, Doressoundiram, Alain, Dotto, Elisabetta, Duffard, René, Fornasier, Sonia, Groussin, Olivier, Gutierrez, Pedro J., Hainaut, Olivier, Harris, Alan W., Hartogh, Paul, Hestroffer, Daniel, Horner, Jonathan, Jewitt, Dave, Kidger, Mark R., Kiss, Csaba, Lacerda, Pedro, Lara, Luisa M., Lim, Tanya L., Mueller, Michael, Moreno, Raphaël, Ortiz, José Luiz, Rengel, Miriam, Santos-Sanz, Pablo, Swinyard, Bruce, Thomas, Nicholas, Trilling, David E., Astronomy, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2008

15. (12929) 1999 TZ1 : A Portait Of The Closest Centaur

Author

Moullet, Arielle, Lellouch, Emmanuel, Moreno, Raphaël, Ortiz, José Luiz, Duffard, René, Vernazza, Pierre, Doressoundiram, Alain, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2007

16. SMART-1 Impact Ground-based Campaign

Author

Ehrenfreund, Pascale, Foing, Bernard H., Veillet, Christian, Wooden, Diane H., Gurvits, Leonid I., Cook, A. C., Koschny, Detlef, Biver, Nicolas, Buckley, D., Ortiz, José Luiz, Di Martino, Mario, Dantowitz, R. F., Cooke, B., Reddy, V., Wood, M., Vennes, S., Albert, Loïc, Sugita, S., Kasuga, Toshihiro, Meech, Karen J., Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2007

17. SMART-1 Impact Campaign: Predictions, Observations, LCROSS Implications

Author

Foing, Bernard H., Frew, D., Almeida, A., Sarkarati, M., Volp, J., Racca, G., Camino, O., Schoenmaker, J., Schwehm, G., Josset, Jean-Luc, Beauvivre, Stéphane, Sodnik, Zoran, Cerroni, Priscilla, Barucci, Maria Antonella, Grande, M., Keller, Horst Uwe, Nathues, A., Muinonen, Karri, Ehrenfreund, Pascale, Wood, M., Vennes, S., Meech, Karen J., Taylor, C., Hanslmeyer, A., Vaubaillon, Jérémie, Khodachenko, Maxim L., Rucker, Helmut O., Leibundgut, B., Hainaut, Olivier, Gondoin, Philippe, Ortiz, José Luiz, Schultz, R., Erd, C., Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2006

18. The two stellar occultations of November 14, 2003: revealing Titan's stratosphere at sub-km resolution

Author

Sicardy, Bruno, Colas, François, Widemann, Thomas, Fienga, Agnès, Lacour, Sylvestre, Lecacheux, Jean, Lellouch, Emmanuel, Pau, Sylvain, Renner, Stefan, Roques, Françoise, Glass, Ian S., Baba, D., Nagata, Tetsuya, Ferri, Francesca, Martinez, C., Beisker, Wolfgang, Enke, S., Bath, Karl Ludwig, Bode, F., Bode, H.-J., Fiel, D., Kretlow, Mike, Hernandez, M., Horns, D., Luedemann, J., Luedemann, H., Tegtmeier, A., Dewitt, Curtis N., Fraser, B., Jones, T., Shonau, P., Turk, C., Meintjies, P., Howell, R. R., Kidger, Mark R., Ortiz, José Luiz, Rosenzweig, P., Naranjo, O., Rapaport, M., Observatoire de Paris, Université Paris sciences et lettres (PSL), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Astronomie du LESIA, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Ingénieurs, Techniciens et Administratifs, Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), South African Astronomical Observatory (SAAO), Nagoya University, Università degli Studi di Padova = University of Padua (Unipd), Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, International Occultation Timing Association, European Section (IOTA/ES), South African Weather Service, Boyden Observatory, University of the Free State, WIRO, IAC Tenerife, IAA Granada, and Universidad Central de Venezuela (UCV)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; On November 14, 2003, Titan occulted two bright Tycho stars (V= 8.4 and V= 10.3). The first event was observed in the Indian Ocean and southern Africa, while the second one was followed from western Europe, northern and central Americas. Data were gathered by both professional and amateur astronomers, using fixed and portable telescopes at wavelengths ranging from visible to near IR (K band).

Published
2004

19. Observations of Varuna at millimeter and optical wavelength

Author

Moreno, Raphaël, Lellouch, Emmanuel, Ortiz, José Luiz, Paubert, Gabriel, Doressoundiram, Alain, Peixinho, Nuno, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2002

20. ESO Large Program on TNOs and Centaurs: Visible-IR Results

Author

Peixinho, Nuno, Delsanti, Audrey, Boehnhardt, Hermann, Barucci, Maria Antonella, Barrera, Luis, de Bergh, Catherine, Birkle, K., Davies, Jonathan, Doressoundiram, Alain, Dotto, Elisabetta, Hainaut, Olivier, Lazzarin, Monica, Meech, Karen J., Ortiz, José Luiz, Romon, Jennifer, Rousselot, Philippe, Sekiguchi, Tomohiko, Thomas, Nicholas, Tozzi, Gian Paolo, Watanabe, Jun-Ichi, West, R., Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
Kuiper Belt bjects, ESO Large Program, Visible and NIR spectroscopy, Centaurs, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2002

21. ESO Large Program: Results from Visible and Infrared spectroscopy of Centaurs and TNOs

Author

Barucci, Maria Antonella, Boehnhardt, Hermann, Dotto, Elisabetta, Lazzarin, Monica, Romon, Jennifer, de Bergh, Catherine, Doressoundiram, Alain, Tozzi, Gian Paolo, Fornasier, Sonia, Davies, Jonathan, Peixinho, Nuno, Barrera, Luis, Birkle, K., Delsanti, Audrey, Hainaut, Olivier, Meech, Karen J., Ortiz, José Luiz, Sekiguchi, Tomohiko, Thomas, Nicholas, Watanabe, Jun-Ichi, West, Richard M., Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
ESO Large Program, Spectroscpy, Kuiper Belt Objects, Centaurs, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2002

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