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Very 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 orbit
dc.contributor.author | Wisniewski, J.P. | pt_BR |
dc.contributor.author | Ge, Jian | pt_BR |
dc.contributor.author | Crepp, Justin R. | pt_BR |
dc.contributor.author | De Lee, Nathan M. | pt_BR |
dc.contributor.author | Eastman, Jason | pt_BR |
dc.contributor.author | Esposito, Massimiliano | pt_BR |
dc.contributor.author | Fleming, S.W. | pt_BR |
dc.contributor.author | Gaudi, B. S. | pt_BR |
dc.contributor.author | Ghezzi, Luan | pt_BR |
dc.contributor.author | González Hernández, Jonay I. | pt_BR |
dc.contributor.author | Lee, Brian L. | pt_BR |
dc.contributor.author | Stassun, Keivan G. | pt_BR |
dc.contributor.author | Agol, Eric | pt_BR |
dc.contributor.author | Allende Prieto, Carlos | pt_BR |
dc.contributor.author | Barnes, Rory | pt_BR |
dc.contributor.author | Bizyaev, D. | pt_BR |
dc.contributor.author | Cargile, Phillip A. | pt_BR |
dc.contributor.author | Chang, Liang | pt_BR |
dc.contributor.author | Costa, Luiz N. da | pt_BR |
dc.contributor.author | Mello, Gustavo Frederico Porto de | pt_BR |
dc.contributor.author | Femenía Castellá, B. | pt_BR |
dc.contributor.author | Ferreira, Letícia D. | pt_BR |
dc.contributor.author | Gary, Bruce L. | pt_BR |
dc.contributor.author | Hebb, Leslie | pt_BR |
dc.contributor.author | Holtzman, J.A. | pt_BR |
dc.contributor.author | Liu, Jian | pt_BR |
dc.contributor.author | Ma, Bo | pt_BR |
dc.contributor.author | Mack, C. E. | pt_BR |
dc.contributor.author | Mahadevan, Suvrath | pt_BR |
dc.contributor.author | Maia, Marcio Antonio Geimba | pt_BR |
dc.contributor.author | Nguyen, D.C. | pt_BR |
dc.contributor.author | Ogando, Ricardo L.C. | pt_BR |
dc.contributor.author | Oravetz, Daniel J. | pt_BR |
dc.contributor.author | Paegert, Martin | pt_BR |
dc.contributor.author | Pan, K. | pt_BR |
dc.contributor.author | Pepper, J. | pt_BR |
dc.contributor.author | Rebolo, Rafael | pt_BR |
dc.contributor.author | Santiago, Basilio Xavier | pt_BR |
dc.contributor.author | Schneider, D.P. | pt_BR |
dc.contributor.author | Bradley, Alaina C. Shelden | pt_BR |
dc.contributor.author | Simmons, Audrey E. | pt_BR |
dc.contributor.author | Tofflemire, Benjamin M. | pt_BR |
dc.contributor.author | Wan, Xiaoke | pt_BR |
dc.contributor.author | Wang, Ji | pt_BR |
dc.contributor.author | Zhao, Bo | pt_BR |
dc.date.accessioned | 2014-12-12T02:15:43Z | pt_BR |
dc.date.issued | 2012 | pt_BR |
dc.identifier.issn | 0004-6256 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/108139 | pt_BR |
dc.description.abstract | TYC 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.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The Astronomical journal. Vol. 143, no. 5 (May 2012), 107, 12 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Estrelas binarias | pt_BR |
dc.subject | Binaries: general | en |
dc.subject | Stars: individual (TYC 4110-01037-1) | en |
dc.subject | Mecânica celeste | pt_BR |
dc.subject | Anãs marrons | pt_BR |
dc.subject | Stars: low mass | en |
dc.subject | Massa estelar | pt_BR |
dc.subject | Movimento estelar | pt_BR |
dc.title | Very 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 orbit | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000864687 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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