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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2406.00794 |
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| _version_ | 1866910469104599040 |
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| author | Gillon, Michaël Pedersen, Peter P. Rackham, Benjamin V. Dransfield, Georgina Ducrot, Elsa Barkaoui, Khalid Burdanov, Artem Y. Schroffenegger, Urs Chew, Yilen Gómez Maqueo Lederer, Susan M. Alonso, Roi Burgasser, Adam J. Howell, Steve B. Narita, Norio de Wit, Julien Demory, Brice-Olivier Queloz, Didier Triaud, Amaury H. M. J. Delrez, Laetitia Jehin, Emmanuël Hooton, Matthew J. Garcia, Lionel J. Muñoz, Clàudia Jano Murray, Catriona A. Pozuelos, Francisco J. Sebastian, Daniel Timmermans, Mathilde Thompson, Samantha J. 1, Sebastián Zúñiga-Fernández Aceituno, Jesús Aganze, Christian Amado, Pedro J. Baycroft, Thomas Benkhaldoun, Zouhair Berardo, David Bolmont, Emeline Clark, Catherine A. Davis, Yasmin T. Davoudi, Fatemeh de Beurs, Zoë L. de Leon, Jerome P. Ikoma, Masahiro Ikuta, Kai Isogai, Keisuke Fukuda, Izuru Fukui, Akihiko Gerasimov, Roman Ghachoui, Mourad Günther, Maximilian N. Hasler, Samantha Hayashi, Yuya Heng, Kevin Hu, Renyu Kagetani, Taiki Kawai, Yugo Kawauchi, Kiyoe Kitzmann, Daniel Koll, Daniel D. B. Lendl, Monika Livingston, John H. Lyu, Xintong Valdés, Erik A. Meier Mori, Mayuko McCormac, James J. Murgas, Felipe Niraula, Prajwal Pallé, Enric Plauchu-Frayn, Ilse Rebolo, Rafael Sabin, Laurence Schackey, Yannick Schanche, Nicole Selsis, Franck Sota, Alfredo Stalport, Manu Standing, Matthew R. Stassun, Keivan G. Tamura, Motohide Theissen, Christopher A. Turbet, Martin Van Grootel, Valérie Varas, Roberto Watanabe, Noriharu Lang, Francis Zong |
| author_facet | Gillon, Michaël Pedersen, Peter P. Rackham, Benjamin V. Dransfield, Georgina Ducrot, Elsa Barkaoui, Khalid Burdanov, Artem Y. Schroffenegger, Urs Chew, Yilen Gómez Maqueo Lederer, Susan M. Alonso, Roi Burgasser, Adam J. Howell, Steve B. Narita, Norio de Wit, Julien Demory, Brice-Olivier Queloz, Didier Triaud, Amaury H. M. J. Delrez, Laetitia Jehin, Emmanuël Hooton, Matthew J. Garcia, Lionel J. Muñoz, Clàudia Jano Murray, Catriona A. Pozuelos, Francisco J. Sebastian, Daniel Timmermans, Mathilde Thompson, Samantha J. 1, Sebastián Zúñiga-Fernández Aceituno, Jesús Aganze, Christian Amado, Pedro J. Baycroft, Thomas Benkhaldoun, Zouhair Berardo, David Bolmont, Emeline Clark, Catherine A. Davis, Yasmin T. Davoudi, Fatemeh de Beurs, Zoë L. de Leon, Jerome P. Ikoma, Masahiro Ikuta, Kai Isogai, Keisuke Fukuda, Izuru Fukui, Akihiko Gerasimov, Roman Ghachoui, Mourad Günther, Maximilian N. Hasler, Samantha Hayashi, Yuya Heng, Kevin Hu, Renyu Kagetani, Taiki Kawai, Yugo Kawauchi, Kiyoe Kitzmann, Daniel Koll, Daniel D. B. Lendl, Monika Livingston, John H. Lyu, Xintong Valdés, Erik A. Meier Mori, Mayuko McCormac, James J. Murgas, Felipe Niraula, Prajwal Pallé, Enric Plauchu-Frayn, Ilse Rebolo, Rafael Sabin, Laurence Schackey, Yannick Schanche, Nicole Selsis, Franck Sota, Alfredo Stalport, Manu Standing, Matthew R. Stassun, Keivan G. Tamura, Motohide Theissen, Christopher A. Turbet, Martin Van Grootel, Valérie Varas, Roberto Watanabe, Noriharu Lang, Francis Zong |
| contents | Located at the bottom of the main sequence, ultracool dwarf stars are widespread in the solar neighbourhood. Nevertheless, their extremely low luminosity has left their planetary population largely unexplored, and only one of them, TRAPPIST-1, has so far been found to host a transiting planetary system. In this context, we present the SPECULOOS project's detection of an Earth-sized planet in a 17 h orbit around an ultracool dwarf of M6.5 spectral type located 16.8 pc away. The planet's high irradiation (16 times that of Earth) combined with the infrared luminosity and Jupiter-like size of its host star make it one of the most promising rocky exoplanet targets for detailed emission spectroscopy characterization with JWST. Indeed, our sensitivity study shows that just ten secondary eclipse observations with the Mid-InfraRed Instrument/Low-Resolution Spectrometer on board JWST should provide strong constraints on its atmospheric composition and/or surface mineralogy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_00794 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3 Gillon, Michaël Pedersen, Peter P. Rackham, Benjamin V. Dransfield, Georgina Ducrot, Elsa Barkaoui, Khalid Burdanov, Artem Y. Schroffenegger, Urs Chew, Yilen Gómez Maqueo Lederer, Susan M. Alonso, Roi Burgasser, Adam J. Howell, Steve B. Narita, Norio de Wit, Julien Demory, Brice-Olivier Queloz, Didier Triaud, Amaury H. M. J. Delrez, Laetitia Jehin, Emmanuël Hooton, Matthew J. Garcia, Lionel J. Muñoz, Clàudia Jano Murray, Catriona A. Pozuelos, Francisco J. Sebastian, Daniel Timmermans, Mathilde Thompson, Samantha J. 1, Sebastián Zúñiga-Fernández Aceituno, Jesús Aganze, Christian Amado, Pedro J. Baycroft, Thomas Benkhaldoun, Zouhair Berardo, David Bolmont, Emeline Clark, Catherine A. Davis, Yasmin T. Davoudi, Fatemeh de Beurs, Zoë L. de Leon, Jerome P. Ikoma, Masahiro Ikuta, Kai Isogai, Keisuke Fukuda, Izuru Fukui, Akihiko Gerasimov, Roman Ghachoui, Mourad Günther, Maximilian N. Hasler, Samantha Hayashi, Yuya Heng, Kevin Hu, Renyu Kagetani, Taiki Kawai, Yugo Kawauchi, Kiyoe Kitzmann, Daniel Koll, Daniel D. B. Lendl, Monika Livingston, John H. Lyu, Xintong Valdés, Erik A. Meier Mori, Mayuko McCormac, James J. Murgas, Felipe Niraula, Prajwal Pallé, Enric Plauchu-Frayn, Ilse Rebolo, Rafael Sabin, Laurence Schackey, Yannick Schanche, Nicole Selsis, Franck Sota, Alfredo Stalport, Manu Standing, Matthew R. Stassun, Keivan G. Tamura, Motohide Theissen, Christopher A. Turbet, Martin Van Grootel, Valérie Varas, Roberto Watanabe, Noriharu Lang, Francis Zong Earth and Planetary Astrophysics Located at the bottom of the main sequence, ultracool dwarf stars are widespread in the solar neighbourhood. Nevertheless, their extremely low luminosity has left their planetary population largely unexplored, and only one of them, TRAPPIST-1, has so far been found to host a transiting planetary system. In this context, we present the SPECULOOS project's detection of an Earth-sized planet in a 17 h orbit around an ultracool dwarf of M6.5 spectral type located 16.8 pc away. The planet's high irradiation (16 times that of Earth) combined with the infrared luminosity and Jupiter-like size of its host star make it one of the most promising rocky exoplanet targets for detailed emission spectroscopy characterization with JWST. Indeed, our sensitivity study shows that just ten secondary eclipse observations with the Mid-InfraRed Instrument/Low-Resolution Spectrometer on board JWST should provide strong constraints on its atmospheric composition and/or surface mineralogy. |
| title | Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3 |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2406.00794 |