Mostrar el registro sencillo del ítem
3D Global climate model of an exo-Venus: a modern Venus-like atmosphere for the nearby super-Earth LP 890-9 c
dc.contributor.author | QUIRINO, Diogo | |
dc.contributor.author | GILLI, Gabriella | |
dc.contributor.author | KALTENEGGER, Lisa | |
dc.contributor.author | NAVARRO, Thomas | |
dc.contributor.author | FAUCHEZ, Thomas J. | |
hal.structure.identifier | Laboratoire de Météorologie Dynamique (UMR 8539) [LMD] | |
dc.contributor.author | TURBET, Martin | |
hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
dc.contributor.author | LECONTE, Jérémy | |
hal.structure.identifier | Laboratoire de Météorologie Dynamique (UMR 8539) [LMD] | |
dc.contributor.author | LEBONNOIS, Sébastien | |
dc.contributor.author | GONZÁLEZ-GALINDO, Francisco | |
dc.date.issued | 2023 | |
dc.identifier.issn | 1745-3933 | |
dc.description.abstractEn | The recently discovered super-Earth LP 890-9 c is an intriguing target for atmospheric studies as it transits a nearby, low-activity late-type M-dwarf star at the inner edge of the Habitable Zone. Its position at the runaway greenhouse limit makes it a natural laboratory to study the climate evolution of hot rocky planets. We present the first 3D-Global Climate Model exo-Venus model for a modern Venus-like atmosphere (92 bar surface pressure, realistic composition, and H<SUB>2</SUB>SO<SUB>4</SUB> radiatively-active clouds), applied to the tidally-locked LP 890-9 c to inform observations by JWST and future instruments. If LP 890-9 c has developed into a modern exo-Venus, then the modelled temperatures suggest that H<SUB>2</SUB>SO<SUB>4</SUB> clouds are possible even in the substellar region. Like on modern Venus, clouds on LP 890-9 c would create a flat spectrum. The strongest CO<SUB>2</SUB> bands in transmission predicted by our model for LP 890-9 c are about 10 ppm, challenging detection, given JWST estimated noise floor. Estimated phase curve amplitudes are 0.9 and 2.4 ppm for continuum and CO<SUB>2</SUB> bands, respectively. While pointing out the challenge to characterise modern exo-Venus analogues, these results provide new insights for JWST proposals and highlight the influence of clouds in the spectrum of hot rocky exoplanet spectra. | |
dc.language.iso | en | |
dc.publisher | Oxford Journals | |
dc.subject.en | planets and satellites: atmospheres | |
dc.subject.en | planets and satellites: terrestrial planets | |
dc.subject.en | planets and satellites: individual: LP 890-9 c | |
dc.title.en | 3D Global climate model of an exo-Venus: a modern Venus-like atmosphere for the nearby super-Earth LP 890-9 c | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1093/mnrasl/slad045 | |
dc.subject.hal | Planète et Univers [physics] | |
bordeaux.journal | Monthly Notices of the Royal Astronomical Society: Letters | |
bordeaux.page | L86-L91 | |
bordeaux.volume | 523 | |
bordeaux.peerReviewed | oui | |
hal.identifier | insu-04195497 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//insu-04195497v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Monthly%20Notices%20of%20the%20Royal%20Astronomical%20Society:%20Letters&rft.date=2023&rft.volume=523&rft.spage=L86-L91&rft.epage=L86-L91&rft.eissn=1745-3933&rft.issn=1745-3933&rft.au=QUIRINO,%20Diogo&GILLI,%20Gabriella&KALTENEGGER,%20Lisa&NAVARRO,%20Thomas&FAUCHEZ,%20Thomas%20J.&rft.genre=article |
Archivos en el ítem
Archivos | Tamaño | Formato | Ver |
---|---|---|---|
No hay archivos asociados a este ítem. |