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dc.contributor.authorWisniewski, J.P.pt_BR
dc.contributor.authorGe, Jianpt_BR
dc.contributor.authorCrepp, Justin R.pt_BR
dc.contributor.authorDe Lee, Nathan M.pt_BR
dc.contributor.authorEastman, Jasonpt_BR
dc.contributor.authorEsposito, Massimilianopt_BR
dc.contributor.authorFleming, S.W.pt_BR
dc.contributor.authorGaudi, B. S.pt_BR
dc.contributor.authorGhezzi, Luanpt_BR
dc.contributor.authorGonzález Hernández, Jonay I.pt_BR
dc.contributor.authorLee, Brian L.pt_BR
dc.contributor.authorStassun, Keivan G.pt_BR
dc.contributor.authorAgol, Ericpt_BR
dc.contributor.authorAllende Prieto, Carlospt_BR
dc.contributor.authorBarnes, Rorypt_BR
dc.contributor.authorBizyaev, D.pt_BR
dc.contributor.authorCargile, Phillip A.pt_BR
dc.contributor.authorChang, Liangpt_BR
dc.contributor.authorCosta, Luiz N. dapt_BR
dc.contributor.authorMello, Gustavo Frederico Porto dept_BR
dc.contributor.authorFemenía Castellá, B.pt_BR
dc.contributor.authorFerreira, Letícia D.pt_BR
dc.contributor.authorGary, Bruce L.pt_BR
dc.contributor.authorHebb, Lesliept_BR
dc.contributor.authorHoltzman, J.A.pt_BR
dc.contributor.authorLiu, Jianpt_BR
dc.contributor.authorMa, Bopt_BR
dc.contributor.authorMack, C. E.pt_BR
dc.contributor.authorMahadevan, Suvrathpt_BR
dc.contributor.authorMaia, Marcio Antonio Geimbapt_BR
dc.contributor.authorNguyen, D.C.pt_BR
dc.contributor.authorOgando, Ricardo L.C.pt_BR
dc.contributor.authorOravetz, Daniel J.pt_BR
dc.contributor.authorPaegert, Martinpt_BR
dc.contributor.authorPan, K.pt_BR
dc.contributor.authorPepper, J.pt_BR
dc.contributor.authorRebolo, Rafaelpt_BR
dc.contributor.authorSantiago, Basilio Xavierpt_BR
dc.contributor.authorSchneider, D.P.pt_BR
dc.contributor.authorBradley, Alaina C. Sheldenpt_BR
dc.contributor.authorSimmons, Audrey E.pt_BR
dc.contributor.authorTofflemire, Benjamin M.pt_BR
dc.contributor.authorWan, Xiaokept_BR
dc.contributor.authorWang, Jipt_BR
dc.contributor.authorZhao, Bopt_BR
dc.date.accessioned2014-12-12T02:15:43Zpt_BR
dc.date.issued2012pt_BR
dc.identifier.issn0004-6256pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/108139pt_BR
dc.description.abstractTYC 4110-01037-1 has a low-mass stellar companion, whose small mass ratio and short orbital period are atypical among binary systems with solar-like (Teff 6000 K) primary stars. Our analysis of TYC 4110-01037-1 reveals it to be a moderately aged ( 5 Gyr) solar-like star having a mass of 1.07 ± 0.08M and radius of 0.99 ± 0.18 R . We analyze 32 radial velocity (RV) measurements from the SDSS-III MARVELS survey as well as 6 supporting RV measurements from the SARG spectrograph on the 3.6 m Telescopio Nazionale Galileo telescope obtained over a period of ∼2 years. The best Keplerian orbital fit parameters were found to have a period of 78.994 ± 0.012 days, an eccentricity of 0.1095 ± 0.0023, and a semi-amplitude of 4199 ± 11 m s−1. We determine the minimum companion mass (if sin i = 1) to be 97.7 ± 5.8 MJup. The system’s companion to host star mass ratio, 0.087 ± 0.003, places it at the lowest end of observed values for short period stellar companions to solar-like (Teff 6000 K) stars. One possible way to create such a system would be if a triple-component stellar multiple broke up into a short period, low q binary during the cluster dispersal phase of its lifetime. A candidate tertiary body has been identified in the system via single-epoch, high contrast imagery. If this object is confirmed to be comoving, we estimate it would be a dM4 star. We present these results in the context of our larger-scale effort to constrain the statistics of low-mass stellar and brown dwarf companions to FGK-type stars via the MARVELS survey.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofThe Astronomical journal. Vol. 143, no. 5 (May 2012), 107, 12 p.pt_BR
dc.rightsOpen Accessen
dc.subjectEstrelas binariaspt_BR
dc.subjectBinaries: generalen
dc.subjectStars: individual (TYC 4110-01037-1)en
dc.subjectMecânica celestept_BR
dc.subjectAnãs marronspt_BR
dc.subjectStars: low massen
dc.subjectMassa estelarpt_BR
dc.subjectMovimento estelarpt_BR
dc.titleVery low mass stellar and substellar companions to solar-like stars from MARVELS. I. A low-mass ratio stellar companion to TYC 4110-01037-1 in a 79 day orbitpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000864687pt_BR
dc.type.originEstrangeiropt_BR


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