|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
2MASS~0213+3648~C: A wide T3 benchmark companion to an an active, old M dwarf binary | | N.R. Deacon
; E.A. Magnier
; Michael C. Liu
; Joshua E. Schlieder
; Kimberly M. Aller
; William M.J. Best
; Brendan P. Bowler
; W.S. Burgett
; K.C. Chambers
; P.W. Draper
; H. Flewelling
; K.W. Hodapp
; N. Kaiser
; N. Metcalfe
; W.E. Sweeney
; R.J. Wainscoat
; C. Waters
; | | Date: |
11 Jan 2017 | | 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$1-10,Gyr. Applying this age range to evolutionary models
implies the wide companion has a mass of 0.063$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. | | Source: | arXiv, 1701.3104 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER