Thermal anomaly in Enceladus' South Pole subsurface
On November 6, 2011, during the E16 flyby, the Cassini Radar had a unique opportunity to closely observe Enceladus in both its active and passive modes of operation. The E16 swath aimed at about 66°S, close to the active South polar rifted area. In this paper, we show that the radiometry data collec...
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ftunivparis:oai:HAL:hal-00922928v1 2024-05-19T07:48:38+00:00 Thermal anomaly in Enceladus' South Pole subsurface Le Gall, Alice Leyrat, C. Janssen, M. A. Stolzenbach, Aurélien West, R. Lorenz, R. D. Mitchell, K. Ries, P. PLANETO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) 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)-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) 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) Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) Johns Hopkins University Applied Physics Laboratory Laurel, MD (APL) London, United Kingdom 2013-09-08 https://hal.science/hal-00922928 https://hal.science/hal-00922928/document https://hal.science/hal-00922928/file/EPSC2013-808_-_copie.pdf en eng HAL CCSD hal-00922928 https://hal.science/hal-00922928 https://hal.science/hal-00922928/document https://hal.science/hal-00922928/file/EPSC2013-808_-_copie.pdf BIBCODE: 2013EPSC.8.808L info:eu-repo/semantics/OpenAccess European Planetary Science Congress 2013 https://hal.science/hal-00922928 European Planetary Science Congress 2013, Sep 2013, London, United Kingdom. pp.EPSC2013-808 [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] info:eu-repo/semantics/conferenceObject Conference papers 2013 ftunivparis 2024-04-23T03:23:39Z On November 6, 2011, during the E16 flyby, the Cassini Radar had a unique opportunity to closely observe Enceladus in both its active and passive modes of operation. The E16 swath aimed at about 66°S, close to the active South polar rifted area. In this paper, we show that the radiometry data collected during this flyby revealed brightness temperatures much higher than expected, pointing to a geothermal anomaly in the subsurface. This anomaly could be indicative of a buried heat source, unless it is due to exotic thermal processes such as the solid-state greenhouse effect. Conference Object South pole Université de Paris: Portail HAL |
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Open Polar |
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Université de Paris: Portail HAL |
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ftunivparis |
language |
English |
topic |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
spellingShingle |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] Le Gall, Alice Leyrat, C. Janssen, M. A. Stolzenbach, Aurélien West, R. Lorenz, R. D. Mitchell, K. Ries, P. Thermal anomaly in Enceladus' South Pole subsurface |
topic_facet |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
description |
On November 6, 2011, during the E16 flyby, the Cassini Radar had a unique opportunity to closely observe Enceladus in both its active and passive modes of operation. The E16 swath aimed at about 66°S, close to the active South polar rifted area. In this paper, we show that the radiometry data collected during this flyby revealed brightness temperatures much higher than expected, pointing to a geothermal anomaly in the subsurface. This anomaly could be indicative of a buried heat source, unless it is due to exotic thermal processes such as the solid-state greenhouse effect. |
author2 |
PLANETO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) 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)-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) 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) Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) Johns Hopkins University Applied Physics Laboratory Laurel, MD (APL) |
format |
Conference Object |
author |
Le Gall, Alice Leyrat, C. Janssen, M. A. Stolzenbach, Aurélien West, R. Lorenz, R. D. Mitchell, K. Ries, P. |
author_facet |
Le Gall, Alice Leyrat, C. Janssen, M. A. Stolzenbach, Aurélien West, R. Lorenz, R. D. Mitchell, K. Ries, P. |
author_sort |
Le Gall, Alice |
title |
Thermal anomaly in Enceladus' South Pole subsurface |
title_short |
Thermal anomaly in Enceladus' South Pole subsurface |
title_full |
Thermal anomaly in Enceladus' South Pole subsurface |
title_fullStr |
Thermal anomaly in Enceladus' South Pole subsurface |
title_full_unstemmed |
Thermal anomaly in Enceladus' South Pole subsurface |
title_sort |
thermal anomaly in enceladus' south pole subsurface |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00922928 https://hal.science/hal-00922928/document https://hal.science/hal-00922928/file/EPSC2013-808_-_copie.pdf |
op_coverage |
London, United Kingdom |
genre |
South pole |
genre_facet |
South pole |
op_source |
European Planetary Science Congress 2013 https://hal.science/hal-00922928 European Planetary Science Congress 2013, Sep 2013, London, United Kingdom. pp.EPSC2013-808 |
op_relation |
hal-00922928 https://hal.science/hal-00922928 https://hal.science/hal-00922928/document https://hal.science/hal-00922928/file/EPSC2013-808_-_copie.pdf BIBCODE: 2013EPSC.8.808L |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1799466937445515264 |