arXiv Open Access 2024

Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3

Michaël Gillon Peter P. Pedersen Benjamin V. Rackham Georgina Dransfield Elsa Ducrot +79 lainnya

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Abstrak

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.

Topik & Kata Kunci

astro-ph.EP

Penulis (84)

Michaël Gillon

Peter P. Pedersen

Benjamin V. Rackham

Georgina Dransfield

Elsa Ducrot

Khalid Barkaoui

Artem Y. Burdanov

Urs Schroffenegger

Yilen Gómez Maqueo Chew

Susan M. Lederer

Roi Alonso

Adam J. Burgasser

Steve B. Howell

Norio Narita

Julien de Wit

Brice-Olivier Demory

Didier Queloz

Amaury H. M. J. Triaud

Laetitia Delrez

Emmanuël Jehin

Matthew J. Hooton

Lionel J. Garcia

Clàudia Jano Muñoz

Catriona A. Murray

Francisco J. Pozuelos

Daniel Sebastian

Mathilde Timmermans

Samantha J. Thompson

Sebastián Zúñiga-Fernández 1

Jesús Aceituno

Christian Aganze

Pedro J. Amado

Thomas Baycroft

Zouhair Benkhaldoun

David Berardo

Emeline Bolmont

Catherine A. Clark

Yasmin T. Davis

Fatemeh Davoudi

Zoë L. de Beurs

Jerome P. de Leon

Masahiro Ikoma

Kai Ikuta

Keisuke Isogai

Izuru Fukuda

Akihiko Fukui

Roman Gerasimov

Mourad Ghachoui

Maximilian N. Günther

Samantha Hasler

Yuya Hayashi

Kevin Heng

Renyu Hu

Taiki Kagetani

Yugo Kawai

Kiyoe Kawauchi

Daniel Kitzmann

Daniel D. B. Koll

Monika Lendl

John H. Livingston

Xintong Lyu

Erik A. Meier Valdés

Mayuko Mori

James J. McCormac

Felipe Murgas

Prajwal Niraula

Enric Pallé

Ilse Plauchu-Frayn

Rafael Rebolo

Laurence Sabin

Yannick Schackey

Nicole Schanche

Franck Selsis

Alfredo Sota

Manu Stalport

Matthew R. Standing

Keivan G. Stassun

Motohide Tamura

Christopher A. Theissen

Martin Turbet

Valérie Van Grootel

Roberto Varas

Noriharu Watanabe

Francis Zong Lang

Format Sitasi

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Gillon, M., Pedersen, P.P., Rackham, B.V., Dransfield, G., Ducrot, E., Barkaoui, K. et al. (2024). Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3. https://arxiv.org/abs/2406.00794

@article{gillon2024, author = {Michaël Gillon and Peter P. Pedersen and Benjamin V. Rackham and Georgina Dransfield and Elsa Ducrot and Khalid Barkaoui and Artem Y. Burdanov and Urs Schroffenegger and Yilen Gómez Maqueo Chew and Susan M. Lederer and Roi Alonso and Adam J. Burgasser and Steve B. Howell and Norio Narita and Julien de Wit and Brice-Olivier Demory and Didier Queloz and Amaury H. M. J. Triaud and Laetitia Delrez and Emmanuël Jehin and Matthew J. Hooton and Lionel J. Garcia and Clàudia Jano Muñoz and Catriona A. Murray and Francisco J. Pozuelos and Daniel Sebastian and Mathilde Timmermans and Samantha J. Thompson and Sebastián Zúñiga-Fernández 1 and Jesús Aceituno and Christian Aganze and Pedro J. Amado and Thomas Baycroft and Zouhair Benkhaldoun and David Berardo and Emeline Bolmont and Catherine A. Clark and Yasmin T. Davis and Fatemeh Davoudi and Zoë L. de Beurs and Jerome P. de Leon and Masahiro Ikoma and Kai Ikuta and Keisuke Isogai and Izuru Fukuda and Akihiko Fukui and Roman Gerasimov and Mourad Ghachoui and Maximilian N. Günther and Samantha Hasler and Yuya Hayashi and Kevin Heng and Renyu Hu and Taiki Kagetani and Yugo Kawai and Kiyoe Kawauchi and Daniel Kitzmann and Daniel D. B. Koll and Monika Lendl and John H. Livingston and Xintong Lyu and Erik A. Meier Valdés and Mayuko Mori and James J. McCormac and Felipe Murgas and Prajwal Niraula and Enric Pallé and Ilse Plauchu-Frayn and Rafael Rebolo and Laurence Sabin and Yannick Schackey and Nicole Schanche and Franck Selsis and Alfredo Sota and Manu Stalport and Matthew R. Standing and Keivan G. Stassun and Motohide Tamura and Christopher A. Theissen and Martin Turbet and Valérie Van Grootel and Roberto Varas and Noriharu Watanabe and Francis Zong Lang}, title = {Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3}, year = {2024}, journal = {arXiv}, url = {https://arxiv.org/abs/2406.00794}, }

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Tahun Terbit: 2024
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓