Present and Future Observations of the Earthshine from Antarctica
International audience It is likely that images of Earth-like planets will be obtained in the next years. The first images will actually come down to single dots, in which biomarkers can be searched. Taking the Earth as a example of planet providing life, Earthshine observations showed that the spec...
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Online Access: | https://insu.hal.science/insu-03581808 https://doi.org/10.1017/S1743921312016900 |
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ftccsdartic:oai:HAL:insu-03581808v1 2024-01-14T10:02:22+01:00 Present and Future Observations of the Earthshine from Antarctica Briot, Danielle Arnold, Luc Jacquemoud, Stéphane Observatoire de Paris Université Paris sciences et lettres (PSL) Observatoire de Haute-Provence (OHP) Institut Pythéas (OSU PYTHEAS) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) à renseigner, Unknown Region 2013 https://insu.hal.science/insu-03581808 https://doi.org/10.1017/S1743921312016900 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1017/S1743921312016900 insu-03581808 https://insu.hal.science/insu-03581808 BIBCODE: 2013IAUS.288.214B doi:10.1017/S1743921312016900 Astrophysics from Antarctica https://insu.hal.science/insu-03581808 Astrophysics from Antarctica, 2013, à renseigner, Unknown Region. pp.214-217, ⟨10.1017/S1743921312016900⟩ Astrobiology Extraterrestrial life Earth Moon Earthshine Vegetation [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/conferenceObject Conference papers 2013 ftccsdartic https://doi.org/10.1017/S1743921312016900 2023-12-17T00:23:08Z International audience It is likely that images of Earth-like planets will be obtained in the next years. The first images will actually come down to single dots, in which biomarkers can be searched. Taking the Earth as a example of planet providing life, Earthshine observations showed that the spectral signature of photosynthetic pigments and atmospheric biogenic molecules was detectable, suggesting that, in principle, life on other planets could be detected on a global scale, if it is widely spread and distinguishable from known abiotic spectral signatures. As for the Earth, we already showed that the Vegetation Red Edge which is related to chlorophyll absorption features was larger when continents, versus oceans, were facing the Moon. It proved that an elementary mapping of a planet was even possible. In the frame of the LUCAS (LUmière Cendrée en Antarctique par Spectroscopie) project, the Earthshine has been measured in the Concordia Research Station (Dome C, Antarctica) long enough to observe variations corresponding to different parts of the Earth facing the Moon. An extension of this project, called LUCAS II, would allow long-term observations to detect seasonal variations in the vegetation signal. These data, together with precise measurements of the Earth's albedo, will help to validate a model of global and spectral albedo of our planet. Conference Object Antarc* Antarctica Antarctique* Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Proceedings of the International Astronomical Union 8 S288 214 217 |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Astrobiology Extraterrestrial life Earth Moon Earthshine Vegetation [SDU]Sciences of the Universe [physics] |
spellingShingle |
Astrobiology Extraterrestrial life Earth Moon Earthshine Vegetation [SDU]Sciences of the Universe [physics] Briot, Danielle Arnold, Luc Jacquemoud, Stéphane Present and Future Observations of the Earthshine from Antarctica |
topic_facet |
Astrobiology Extraterrestrial life Earth Moon Earthshine Vegetation [SDU]Sciences of the Universe [physics] |
description |
International audience It is likely that images of Earth-like planets will be obtained in the next years. The first images will actually come down to single dots, in which biomarkers can be searched. Taking the Earth as a example of planet providing life, Earthshine observations showed that the spectral signature of photosynthetic pigments and atmospheric biogenic molecules was detectable, suggesting that, in principle, life on other planets could be detected on a global scale, if it is widely spread and distinguishable from known abiotic spectral signatures. As for the Earth, we already showed that the Vegetation Red Edge which is related to chlorophyll absorption features was larger when continents, versus oceans, were facing the Moon. It proved that an elementary mapping of a planet was even possible. In the frame of the LUCAS (LUmière Cendrée en Antarctique par Spectroscopie) project, the Earthshine has been measured in the Concordia Research Station (Dome C, Antarctica) long enough to observe variations corresponding to different parts of the Earth facing the Moon. An extension of this project, called LUCAS II, would allow long-term observations to detect seasonal variations in the vegetation signal. These data, together with precise measurements of the Earth's albedo, will help to validate a model of global and spectral albedo of our planet. |
author2 |
Observatoire de Paris Université Paris sciences et lettres (PSL) Observatoire de Haute-Provence (OHP) Institut Pythéas (OSU PYTHEAS) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Briot, Danielle Arnold, Luc Jacquemoud, Stéphane |
author_facet |
Briot, Danielle Arnold, Luc Jacquemoud, Stéphane |
author_sort |
Briot, Danielle |
title |
Present and Future Observations of the Earthshine from Antarctica |
title_short |
Present and Future Observations of the Earthshine from Antarctica |
title_full |
Present and Future Observations of the Earthshine from Antarctica |
title_fullStr |
Present and Future Observations of the Earthshine from Antarctica |
title_full_unstemmed |
Present and Future Observations of the Earthshine from Antarctica |
title_sort |
present and future observations of the earthshine from antarctica |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://insu.hal.science/insu-03581808 https://doi.org/10.1017/S1743921312016900 |
op_coverage |
à renseigner, Unknown Region |
genre |
Antarc* Antarctica Antarctique* |
genre_facet |
Antarc* Antarctica Antarctique* |
op_source |
Astrophysics from Antarctica https://insu.hal.science/insu-03581808 Astrophysics from Antarctica, 2013, à renseigner, Unknown Region. pp.214-217, ⟨10.1017/S1743921312016900⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/S1743921312016900 insu-03581808 https://insu.hal.science/insu-03581808 BIBCODE: 2013IAUS.288.214B doi:10.1017/S1743921312016900 |
op_doi |
https://doi.org/10.1017/S1743921312016900 |
container_title |
Proceedings of the International Astronomical Union |
container_volume |
8 |
container_issue |
S288 |
container_start_page |
214 |
op_container_end_page |
217 |
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1788057363425525760 |