Monitoring atmospheric phenomena on Titan
International audience For the past 8 years (1998-2005), we have used adaptive optics imaging (with VLT/NACO and CFHT/PUEO) to explore Titan's atmosphere, which is currently scrutinized in situ by the Cassini-Huygens mission. In the course of our work, we have found variations, such as as seaso...
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ftecoleponts:oai:HAL:hal-00093994v1 2024-09-15T18:36:46+00:00 Monitoring atmospheric phenomena on Titan Hirtzig, Mathieu Coustenis, Athena Gendron, Eric Drossart, Pierre Negrão, Alberto Combes, Michel Lai, Olivier Rannou, Pascal Lebonnois, Sébastien Luz, David 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) Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Canada-France-Hawaii Telescope Corporation (CFHT) National Research Council of Canada (NRC)-Centre National de la Recherche Scientifique (CNRS)-University of Hawai'i Honolulu (UH) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) 2006 https://hal.science/hal-00093994 https://hal.science/hal-00093994/document https://hal.science/hal-00093994/file/aa3381-05.pdf https://doi.org/10.1051/0004-6361:20053381 en eng HAL CCSD EDP Sciences info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20053381 hal-00093994 https://hal.science/hal-00093994 https://hal.science/hal-00093994/document https://hal.science/hal-00093994/file/aa3381-05.pdf doi:10.1051/0004-6361:20053381 info:eu-repo/semantics/OpenAccess ISSN: 0004-6361 EISSN: 1432-0756 Astronomy and Astrophysics - A&A https://hal.science/hal-00093994 Astronomy and Astrophysics - A&A, 2006, 456 (2), pp.761-774. ⟨10.1051/0004-6361:20053381⟩ Titan observation [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2006 ftecoleponts https://doi.org/10.1051/0004-6361:20053381 2024-08-13T23:47:27Z International audience For the past 8 years (1998-2005), we have used adaptive optics imaging (with VLT/NACO and CFHT/PUEO) to explore Titan's atmosphere, which is currently scrutinized in situ by the Cassini-Huygens mission. In the course of our work, we have found variations, such as as seasonal and diurnal effects, as well as temporary features in the southern polar region. The north-south asymmetry is shown to have changed since 2000 in the near-IR and to be currently organized in a brighter northern than southern pole. We study this evolution here. With our data, we also have new significant statistical evidence of diurnal effects in Titan's stratosphere, with a brighter (as much as 19%) morning limb appearing in our images in many cases, when the phase effect is expected on the evening side. The southern bright feature is probably a time-limited seasonal and/or meteorological phenomenon, revolving around the south pole (confined in its motion within the 80$^{\circ}$S parallel) and located somewhere in the upper troposphere (18-40 km of altitude). Its behavior and possible nature are discussed here. Article in Journal/Newspaper South pole École des Ponts ParisTech: HAL |
institution |
Open Polar |
collection |
École des Ponts ParisTech: HAL |
op_collection_id |
ftecoleponts |
language |
English |
topic |
Titan observation [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
Titan observation [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Hirtzig, Mathieu Coustenis, Athena Gendron, Eric Drossart, Pierre Negrão, Alberto Combes, Michel Lai, Olivier Rannou, Pascal Lebonnois, Sébastien Luz, David Monitoring atmospheric phenomena on Titan |
topic_facet |
Titan observation [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience For the past 8 years (1998-2005), we have used adaptive optics imaging (with VLT/NACO and CFHT/PUEO) to explore Titan's atmosphere, which is currently scrutinized in situ by the Cassini-Huygens mission. In the course of our work, we have found variations, such as as seasonal and diurnal effects, as well as temporary features in the southern polar region. The north-south asymmetry is shown to have changed since 2000 in the near-IR and to be currently organized in a brighter northern than southern pole. We study this evolution here. With our data, we also have new significant statistical evidence of diurnal effects in Titan's stratosphere, with a brighter (as much as 19%) morning limb appearing in our images in many cases, when the phase effect is expected on the evening side. The southern bright feature is probably a time-limited seasonal and/or meteorological phenomenon, revolving around the south pole (confined in its motion within the 80$^{\circ}$S parallel) and located somewhere in the upper troposphere (18-40 km of altitude). Its behavior and possible nature are discussed here. |
author2 |
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) Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Canada-France-Hawaii Telescope Corporation (CFHT) National Research Council of Canada (NRC)-Centre National de la Recherche Scientifique (CNRS)-University of Hawai'i Honolulu (UH) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Hirtzig, Mathieu Coustenis, Athena Gendron, Eric Drossart, Pierre Negrão, Alberto Combes, Michel Lai, Olivier Rannou, Pascal Lebonnois, Sébastien Luz, David |
author_facet |
Hirtzig, Mathieu Coustenis, Athena Gendron, Eric Drossart, Pierre Negrão, Alberto Combes, Michel Lai, Olivier Rannou, Pascal Lebonnois, Sébastien Luz, David |
author_sort |
Hirtzig, Mathieu |
title |
Monitoring atmospheric phenomena on Titan |
title_short |
Monitoring atmospheric phenomena on Titan |
title_full |
Monitoring atmospheric phenomena on Titan |
title_fullStr |
Monitoring atmospheric phenomena on Titan |
title_full_unstemmed |
Monitoring atmospheric phenomena on Titan |
title_sort |
monitoring atmospheric phenomena on titan |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.science/hal-00093994 https://hal.science/hal-00093994/document https://hal.science/hal-00093994/file/aa3381-05.pdf https://doi.org/10.1051/0004-6361:20053381 |
genre |
South pole |
genre_facet |
South pole |
op_source |
ISSN: 0004-6361 EISSN: 1432-0756 Astronomy and Astrophysics - A&A https://hal.science/hal-00093994 Astronomy and Astrophysics - A&A, 2006, 456 (2), pp.761-774. ⟨10.1051/0004-6361:20053381⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20053381 hal-00093994 https://hal.science/hal-00093994 https://hal.science/hal-00093994/document https://hal.science/hal-00093994/file/aa3381-05.pdf doi:10.1051/0004-6361:20053381 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1051/0004-6361:20053381 |
_version_ |
1810480489394339840 |