2MASS 0213+3648 C: : A wide T3 benchmark companion to an an active, old M dwarf binary
dc.contributor.author | Deacon, N. R. | |
dc.contributor.author | Magnier, E. A. | |
dc.contributor.author | Liu, Michael C. | |
dc.contributor.author | Schlieder, Joshua E. | |
dc.contributor.author | Aller, Kimberly M. | |
dc.contributor.author | Best, William M. J. | |
dc.contributor.author | Bowler, Brendan P. | |
dc.contributor.author | Burgett, W. S. | |
dc.contributor.author | Chambers, K. C. | |
dc.contributor.author | Draper, P. W. | |
dc.contributor.author | Flewelling, H. | |
dc.contributor.author | Hodapp, K. W. | |
dc.contributor.author | Kaiser, N. | |
dc.contributor.author | Metcalfe, N. | |
dc.contributor.author | Sweeney, W. E. | |
dc.contributor.author | Wainscoat, R. J. | |
dc.contributor.author | Waters, C. | |
dc.date.accessioned | 2017-06-06T16:30:28Z | |
dc.date.available | 2017-06-06T16:30:28Z | |
dc.date.issued | 2017-05-01 | |
dc.identifier.citation | Deacon , N R , Magnier , E A , Liu , M C , Schlieder , J E , Aller , K M , Best , W M J , Bowler , B P , Burgett , W S , Chambers , K C , Draper , P W , Flewelling , H , Hodapp , K W , Kaiser , N , Metcalfe , N , Sweeney , W E , Wainscoat , R J & Waters , C 2017 , ' 2MASS 0213+3648 C: A wide T3 benchmark companion to an an active, old M dwarf binary ' , Monthly Notices of the Royal Astronomical Society , vol. 467 , no. 1 , pp. 1126-1139 . https://doi.org/10.1093/mnras/stx065 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/1701.03104v2 | |
dc.identifier.uri | http://hdl.handle.net/2299/18296 | |
dc.description | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2017 The Author (s). Published by Oxford University Press on behalf of the Royal Astronomical Society. | |
dc.description.abstract | We present the discovery of a 360 AU separation T3 companion to the tight (3.1 AU) M4.5+M6.5 binary 2MASS J02132062+3648506. This companion was identified using Pan-STARRS1 data and, despite its relative proximity to the Sun (22.2$_{-4.0}^{+6.4}$ pc; Pan-STARRS1 parallax) and brightness ($J$=15.3), appears to have been missed by previous studies due to its position near a diffraction spike in 2MASS. The close M~dwarf binary has active X-ray and H$\alpha$ emission and shows evidence for UV flares. The binary's weak {\it GALEX} UV emission and strong Na I 8200\AA Na absorption leads us to an age range of $\sim$1-10Gyr. Applying this age range to evolutionary models implies the wide companion has a mass of 0.063$\pm$0.009\,$M_{\odot}$. 2MASS J0213+3648 C provides a relatively old benchmark close to the L/T transition and acts as a key, older comparison to the much younger early-T companions HN~Peg~B and GU~Psc~b. | en |
dc.format.extent | 14 | |
dc.format.extent | 4509823 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | astro-ph.SR | |
dc.title | 2MASS 0213+3648 C: : A wide T3 benchmark companion to an an active, old M dwarf binary | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/stx065 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true |