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dc.contributor.author
Kubyshkina, Daria
dc.contributor.author
Vidotto, Aline A.
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Villarreal D'angelo, Carolina Susana
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dc.contributor.author
Carolan, Stephen
dc.contributor.author
Hazra, Gopal
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Carleo, Ilaria
dc.date.available
2023-10-30T14:31:42Z
dc.date.issued
2022-02
dc.identifier.citation
Kubyshkina, Daria; Vidotto, Aline A.; Villarreal D'angelo, Carolina Susana; Carolan, Stephen; Hazra, Gopal; et al.; Atmospheric mass-loss and stellar wind effects in young and old systems - I. Comparative 3D study of TOI-942 and TOI-421 systems; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 510; 2; 2-2022; 2111-2126
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/216406
dc.description.abstract
At young ages, when radiation from the host star is high, and the planet is hot and inflated after formation, planetary atmospheric mass-loss can be extremely strong compared to older planets. In turn, stellar winds are faster and denser for young stars compared to evolved main-sequence stars. Their interaction with escaping planetary atmospheres can substantially affect atmospheric mass-loss rates, as well as the observable signatures of escaping atmospheres, with both effects expected to occur differently for young and evolved planets. We perform a comparative study of two systems around stars of similar masses but very different ages (50 Myr and 9 Gyr): TOI-942 and TOI-421. Both stars host two sub-Neptune-like planets at similar orbits and in similar mass ranges, which allows a direct comparison of the atmospheric escape and interactions with the stellar winds in the young and old systems. We perform the 3D atmospheric modelling of the four planets in TOI-942 and TOI-421 systems and make the theoretical predictions of possible observational signatures in Ly α absorption. We find that accounting for the stellar wind interacting with planetary atmospheres is crucial for the interpretation of the observations for young planets. Additionally, we show that a particular energy distribution along the XUV spectra has a minor effect on the atmospheric mass-loss rates, but it is of crucial importance for modelling the Ly α absorption and therefore for interpretation of observations.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
HYDRODYNAMICS
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PLANETS AND SATELLITES: ATMOSPHERES
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PLANETS AND SATELLITES: PHYSICAL EVOLUTION
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Otras Ciencias Naturales y Exactas
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dc.subject.classification
Otras Ciencias Naturales y Exactas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Atmospheric mass-loss and stellar wind effects in young and old systems - I. Comparative 3D study of TOI-942 and TOI-421 systems
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-10-26T15:11:33Z
dc.journal.volume
510
dc.journal.number
2
dc.journal.pagination
2111-2126
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Oxford
dc.description.fil
Fil: Kubyshkina, Daria. Universidad de Dublin; Irlanda. Austrian Academy Of Sciences (oaw);
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Fil: Vidotto, Aline A.. Universidad de Dublin; Irlanda. Leiden University; Países Bajos
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Fil: Villarreal D'angelo, Carolina Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
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Fil: Carolan, Stephen. Universidad de Dublin; Irlanda
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Fil: Hazra, Gopal. Leiden University; Países Bajos. Universidad de Dublin; Irlanda
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Fil: Carleo, Ilaria. Ohio Wesleyan University.; Estados Unidos. Istituto Nazionale di Astrofisica; Italia
dc.journal.title
Monthly Notices of the Royal Astronomical Society
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stab3594
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/510/2/2111/6459729
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2112.04815v1
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