Skip to main content

The mass-radius relationship for very low mass stars: four new discoveries from the HATSouth Survey

Author(s): Zhou, G; Bayliss, D; Hartman, Joel D.; Bakos, Gaspar Aron; Penev, K; et al

Download
To refer to this page use: http://arks.princeton.edu/ark:/88435/pr1798v
Full metadata record
DC FieldValueLanguage
dc.contributor.authorZhou, G-
dc.contributor.authorBayliss, D-
dc.contributor.authorHartman, Joel D.-
dc.contributor.authorBakos, Gaspar Aron-
dc.contributor.authorPenev, K-
dc.contributor.authorCsubry, Zoltan-
dc.contributor.authorTan, TG-
dc.contributor.authorJordán, A.-
dc.contributor.authorMancini, L-
dc.contributor.authorRabus, M-
dc.contributor.authorBrahm, R-
dc.contributor.authorEspinoza, N-
dc.contributor.authorMohler-Fischer, M-
dc.contributor.authorCiceri, S-
dc.contributor.authorSuc, V-
dc.contributor.authorCsák, B-
dc.contributor.authorHenning, T-
dc.contributor.authorSchmidt, B-
dc.date.accessioned2019-04-10T19:31:08Z-
dc.date.available2019-04-10T19:31:08Z-
dc.date.issued2014-01-21en_US
dc.identifier.citationZhou, G, Bayliss, D, Hartman, JD, Bakos, GÁ, Penev, K, Csubry, Z, Tan, TG, Jordán, A, Mancini, L, Rabus, M, Brahm, R, Espinoza, N, Mohler-Fischer, M, Ciceri, S, Suc, V, Csák, B, Henning, T, Schmidt, B. (2014). The mass-radius relationship for very low mass stars: four new discoveries from the HATSouth Survey. \mnras, 437 (2831 - 2844. doi:10.1093/mnras/stt2100en_US
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1798v-
dc.description.abstractWe report the discovery of four transiting F-M binary systems with companions between 0.1 and 0.2 M in mass by the HATSouth survey. These systems have been character- ized via a global analysis of the HATSouth discovery data, combined with high-resolution radial velocities and accurate transit photometry observations. We determined the masses and radii of the component stars using a combination of two methods: isochrone fitting of spectroscopic primary star parameters and equating spectroscopic primary star rotation veloc- ity with spin–orbit synchronization. These new very low mass companions are HATS550- 016B (0 . 110 + 0 . 005 − 0 . 006 M ,0 . 147 + 0 . 003 − 0 . 004 R ), HATS551-019B (0 . 17 + 0 . 01 − 0 . 01 M ,0 . 18 + 0 . 01 − 0 . 01 R ), HATS551-021B (0 . 132 + 0 . 014 − 0 . 005 M ,0 . 154 + 0 . 006 − 0 . 008 R ) and HATS553-001B (0 . 20 + 0 . 01 − 0 . 02 M , 0 . 22 + 0 . 01 − 0 . 01 R ). We examine our sample in the context of the radius anomaly for fully convec- tive low-mass stars. Combining our sample with the 13 other well-studied very low mass stars, we find a tentative 5 per cent systematic deviation between the measured radii and theoretical isochrone models.en_US
dc.format.extent2831 - 2844en_US
dc.language.isoen_USen_US
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen_US
dc.rightsFinal published version. This is an open access article.en_US
dc.titleThe mass-radius relationship for very low mass stars: four new discoveries from the HATSouth Surveyen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1093/mnras/stt2100-
dc.date.eissued2013-11-26en_US
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

Files in This Item:
File Description SizeFormat 
stt2100.pdf2.5 MBAdobe PDFView/Download
1033737_Supplementary_Data.zip249.67 kBUnknownView/Download


Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.