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DOI | 10.1088/0004-6256/143/5/107 |
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 | |
Wisniewski, John P.1; Ge, Jian2; Crepp, Justin R.3; De Lee, Nathan2,4; Eastman, Jason5,6,7; Esposito, Massimiliano8,9; Fleming, Scott W.2,10; Gaudi, B. Scott5; Ghezzi, Luan11,12; Gonzalez Hernandez, Jonay I.8,9; Lee, Brian L.2; Stassun, Keivan G.4,13,14; Agol, Eric1; Allende Prieto, Carlos8,9; Barnes, Rory1; Bizyaev, Dmitry15; Cargile, Phillip4; Chang, Liang2; Da Costa, Luiz N.11,12; Porto De Mello, G. F.11,16; Femenia, Bruno8,9; Ferreira, Leticia D.11,16; Gary, Bruce4; Hebb, Leslie4; Holtzman, Jon17; Liu, Jian2; Ma, Bo2; Mack, Claude E., III4; Mahadevan, Suvrath10,18; Maia, Marcio A. G.11,12; Duy Cuong Nguyen2; Ogando, Ricardo L. C.11,12; Oravetz, Daniel J.15; Paegert, Martin4; Pan, Kaike15; Pepper, Joshua4; Rebolo, Rafael8,9; Santiago, Basilio11,19; Schneider, Donald P.10,18; Shelden, Alaina C.15; Simmons, Audrey15; Tofflemire, Benjamin M.1,20; Wan, Xiaoke2; Wang, Ji2; Zhao, Bo2 | |
通讯作者 | Wisniewski, John P. |
来源期刊 | ASTRONOMICAL JOURNAL
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ISSN | 0004-6256 |
EISSN | 1538-3881 |
出版年 | 2012 |
卷号 | 143期号:5 |
英文摘要 | 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 (T-eff less than or similar to 6000 K) primary stars. Our analysis of TYC 4110-01037-1 reveals it to be a moderately aged (less than or similar to 5 Gyr) solar-like star having a mass of 1.07 +/- 0.08 M-circle dot and radius of 0.99 +/- 0.18 R-circle dot. 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 similar to 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 M-Jup. 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 (T-eff less than or similar to 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. |
英文关键词 | binaries: general stars: individual (TYC 4110-01037-1) stars: low mass |
类型 | Article |
语种 | 英语 |
国家 | USA ; Spain ; Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000302954200004 |
WOS关键词 | BROWN DWARF DESERT ; ADAPTIVE OPTICS SURVEY ; FINDING CAMPAIGN DISCOVERY ; STATISTICAL PROPERTIES ; SPECTRAL-ANALYSIS ; ECLIPSING SYSTEM ; SHORT-PERIOD ; PLANET ; MULTIPLICITY ; RADIUS |
WOS类目 | Astronomy & Astrophysics |
WOS研究方向 | Astronomy & Astrophysics |
来源机构 | New Mexico State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/171388 |
作者单位 | 1.Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA; 2.Univ Florida, Dept Astron, Gainesville, FL 32611 USA; 3.CALTECH, Dept Astrophys, Pasadena, CA 91125 USA; 4.Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA; 5.Ohio State Univ, Dept Astron, Columbus, OH 43210 USA; 6.Las Cumbres Observ Global Telescope Network, Santa Barbara, CA 93117 USA; 7.Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA; 8.IAC, E-38205 Tenerife, Spain; 9.Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain; 10.Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA; 11.Lab Interinst & E Astron LIneA, BR-20921400 Rio De Janeiro, RJ, Brazil; 12.Observ Nacl, BR-20921400 Rio De Janeiro, RJ, Brazil; 13.Fisk Univ, Dept Phys, Nashville, TN USA; 14.MIT, Dept Phys, Cambridge, MA 02139 USA; 15.Apache Point Observ, Sunspot, NM 88349 USA; 16.Univ Fed Rio de Janeiro, Observ Valongo, BR-20080090 Rio De Janeiro, Brazil; 17.New Mexico State Univ, Dept Astron, Las Cruces, NM USA; 18.Penn State Univ, Ctr Exoplanets & Habitable Worlds, University Pk, PA 16802 USA; 19.Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil; 20.Univ Wisconsin Madison, Dept Astron, Madison, WI 53706 USA |
推荐引用方式 GB/T 7714 | Wisniewski, John P.,Ge, Jian,Crepp, Justin R.,et al. 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[J]. New Mexico State University,2012,143(5). |
APA | Wisniewski, John P..,Ge, Jian.,Crepp, Justin R..,De Lee, Nathan.,Eastman, Jason.,...&Zhao, Bo.(2012).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.ASTRONOMICAL JOURNAL,143(5). |
MLA | Wisniewski, John P.,et al."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".ASTRONOMICAL JOURNAL 143.5(2012). |
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