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Habitable Planets Eclipsing Brown Dwarfs: Strategies for Detection and Characterization

hal.structure.identifierSSE 2013
dc.contributor.authorBELU, A. R.
hal.structure.identifierSSE 2013
dc.contributor.authorSELSIS, Franck
hal.structure.identifierSSE 2013
dc.contributor.authorRAYMOND, Sean N.
dc.contributor.authorPALLÉ, Enric
dc.contributor.authorSTREET, Rachel
hal.structure.identifierIndian Institute of Astrophysics [IIA]
dc.contributor.authorSAHU, D. K.
dc.contributor.authorVON BRAUN, Kaspar
hal.structure.identifierSSE 2013
dc.contributor.authorBOLMONT, Emeline
dc.contributor.authorFIGUEIRA, Pedro
dc.contributor.authorANUPAMA, G. C.
hal.structure.identifierConsejo Superior de Investigaciones Cientificas [España] = Spanish National Research Council [Spain] [CSIC]
dc.contributor.authorRIBAS, Ignasi
dc.date.created2013-02-04
dc.date.issued2013
dc.identifier.issn0004-637X
dc.description.abstractEnGiven the very close proximity of their habitable zones, brown dwarfs represent high-value targets in the search for nearby transiting habitable planets that may be suitable for follow-up occultation spectroscopy. In this paper we develop search strategies to find habitable planets transiting brown dwarfs depending on their maximum habitable orbital period (PHZ out). Habitable planets with PHZ out shorter than the useful duration of a night (e.g. 8-10 hrs) can be screened with 100 percent completeness from a single location and in a single night (near-IR). More luminous brown dwarfs require continuous monitoring for longer duration, e.g. from space or from a longitude-distributed network (one test scheduling achieved - 3 telescopes, 13.5 contiguous hours). Using a simulated survey of the 21 closest known brown dwarfs (within 7 pc) we find that the probability of detecting at least one transiting habitable planet is between 4.5 +5.6-1.4 and 56 +31-13 percent, depending on our assumptions. We calculate that brown dwarfs within 5-10 pc are characterizable for potential biosignatures with a 6.5 m space telescope using approx. 1 percent of a 5-year mission's life-time spread over a contiguous segment only one fifth to one tenth of this duration.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.title.enHabitable Planets Eclipsing Brown Dwarfs: Strategies for Detection and Characterization
dc.typeArticle de revue
dc.identifier.doi10.1088/0004-637X/768/2/125
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.identifier.arxiv1301.4453
bordeaux.journalThe Astrophysical Journal
bordeaux.pageid. 125
bordeaux.volume768
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-00787064
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00787064v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Astrophysical%20Journal&rft.date=2013&rft.volume=768&rft.issue=2&rft.spage=id.%20125&rft.epage=id.%20125&rft.eissn=0004-637X&rft.issn=0004-637X&rft.au=BELU,%20A.%20R.&SELSIS,%20Franck&RAYMOND,%20Sean%20N.&PALL%C3%89,%20Enric&STREET,%20Rachel&rft.genre=article


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