2016ApJ...816...78C

Query : 2016ApJ...816...78C

2016ApJ...816...78C - Astrophys. J., 816, 78 (2016/January-2)

Discovery of an L4 beta candidate member of argus in the planetary mass regime: Wise J231921.92+764544.4.

CASTRO P.J. and GIZIS J.E.

Abstract (from CDS):

We present the discovery of a young L dwarf, WISE J231921.92+764544.4, identified by comparing the Wide-field Infrared Survey Explorer (WISE) All-Sky Catalog to the Two Micron All Sky Survey (2MASS). A medium-resolution optical spectrum provides a spectral type of L4β, with a photometric distance estimate of 26.1 ± 4.4 pc. The red WISE W1 - W2 color provides additional evidence of youth, while the 2MASS J - Ks color does not. WISE J231921.92+764544.4 is a candidate member of the young moving group Argus, with the space motion and position of WISE J231921.92+764544.4 giving a probability of 79% for membership in Argus and a probability of 21% as a field object, based on BANYAN II. WISE J231921.92+764544.4 has a mass of 12.1 ± 0.4 MJup based on membership in Argus, within the planetary mass regime.

Abstract Copyright: ∼

Journal keyword(s): brown dwarfs - infrared: stars - proper motions - stars: distances - stars: individual: WISE J231921.92+764544.4 - stars: late-type

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME THA MGr 00 00 -62.0           ~ 540 0
2 2MASS J00332386-1521309 BD* 00 33 23.8720769634 -15 21 30.898724593           L4beta 32 0
3 2MASS J01415823-4633574 BD* 01 41 58.2329929560 -46 33 57.347594316           L0gamma 80 0
4 Cl* Melotte 22 KPNO 2 BD* 03 45 43.1616128256 +25 40 23.239779672         17.36 L0V 136 0
5 2MASS J05012406-0010452 BD* 05 01 24.0852555792 -00 10 45.591750444           L4gamma 65 0
6 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
7 NAME Columba Association As* 06 04 19.4 -22 20 40           ~ 337 0
8 NAME AB Dor Moving Group MGr 06 38 53.4 -42 50 04           ~ 540 0
9 G 196-3B BD* 10 04 20.6391105792 +50 22 59.378638152           L3beta 115 0
10 G 196-3 PM* 10 04 21.4627410744 +50 23 13.386435576       11.323   M3.0V 90 0
11 SIPS J1058-1548 BD* 10 58 47.8366017792 -15 48 17.250428304       20.095 17.764 L3V 111 2
12 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
13 2MASS J11550087+2307058 BD* 11 55 00.8851003272 +23 07 06.421018152           L4V 26 0
14 SIPS J1228-1547 BD* 12 28 15.23184 -15 47 34.2312       20.414 18.042 L5.5+L5.5 151 0
15 NAME Kelu-1 BD* 13 05 40.1642434199 -25 41 05.712165150         16.85 L2+L3.5 267 0
16 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 894 0
17 2MASS J14392836+1929149 BD* 14 39 28.1499428599 +19 29 15.908790370           L1V 145 0
18 2MASS J23192137+7645437 BD* 23 19 21.3238027968 +76 45 43.835984136           L4 6 0
19 NAME Carina Association As* ~ ~           ~ 188 1
20 NAME Argus Association As* ~ ~           ~ 266 0

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