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dc.contributor.author
Hobson, Melissa J.
dc.contributor.author
Gomez, Mercedes Nieves
dc.date.available
2019-04-29T18:05:00Z
dc.date.issued
2017-08
dc.identifier.citation
Hobson, Melissa J.; Gomez, Mercedes Nieves; Multiple planetary systems: Properties of the current sample; Elsevier Science; New Astronomy; 55; 8-2017; 1-12
dc.identifier.issn
1384-1076
dc.identifier.uri
http://hdl.handle.net/11336/75224
dc.description.abstract
We carry out analyses on stellar and planetary properties of multiple exoplanetary systems in the currently available sample. With regards to the stars, we study their temperature, distance from the Sun, and metallicity distributions, finding that the stars that harbour multiple exoplanets tend to have subsolar metallicities, in contrast to metal-rich Hot Jupiter hosts; while non-Hot Jupiter single planet hosts form an intermediate group between these two, with approximately solar metallicities. With regards to the planetary systems, we select those with four or more planets and analyse their configurations in terms of stability (via Hill radii), compactness, and size variations. We find that most planetary pairs are stable, and that the compactness correlates to the size variation: More compact systems have more similarly sized planets and vice versa. We also investigate the spectral energy distributions of the stars hosting multiple exoplanetary systems, seeking infra-red excesses that could indicate the presence of debris disks. These disks would be leftovers from the planetary formation process, and could be considered as analogues of the Solar System's Asteroid or Kuiper belts. We identify potential candidates for disks that are good targets for far infra-red follow-up observations to confirm their existence.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
(Stars:) Planetary Systems
dc.subject
Circumstellar Matter
dc.subject
Planets And Satellites: General
dc.subject
Stars: General
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Multiple planetary systems: Properties of the current sample
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-15T18:34:29Z
dc.journal.volume
55
dc.journal.pagination
1-12
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Hobson, Melissa J.. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
dc.description.fil
Fil: Gomez, Mercedes Nieves. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
dc.journal.title
New Astronomy
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1384107617300556
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.newast.2017.02.003
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