2014ApJ...792L..17G

Query : 2014ApJ...792L..17G

2014ApJ...792L..17G - Astrophys. J., 792, L17 (2014/September-1)

SIMP J2154-1055: a new low-gravity L4β brown dwarf candidate member of the Argus association.

GAGNE J., LAFRENIERE D., DOYON R., ARTIGAU E., MALO L., ROBERT J. and NADEAU D.

Abstract (from CDS):

We present SIMP J21543454-1055308, a new L4β brown dwarf identified in the SIMP survey that displays signs of low gravity in its near-infrared spectrum. Using BANYAN II, we show that it is a candidate member of the Argus association, albeit with a 21% probability that it is a contaminant from the field. Measurements of radial velocity and parallax will be needed to verify its membership. If it is a member of Argus (age 30-50 Myr), then this object would have a planetary mass of 10±0.5 MJup.

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Journal keyword(s): brown dwarfs - methods: data analysis - proper motions - stars: kinematics and dynamics

Simbad objects: 9

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Number of rows : 9
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 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
2 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
3 V* AP Col PM* 06 04 52.1486600471 -34 33 35.774443549     12.96 11.49 9.60 M5 89 0
4 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
5 NAME UMa Region reg 11 00 +50.0           ~ 333 0
6 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 482 1
7 HD 202990 * 21 19 48.6389026152 -14 01 03.059702688   7.05 7.03     A0V 16 0
8 2MASS J21543454-1055308 BD* 21 54 34.54272 -10 55 30.8424           L5 22 0
9 NAME Argus Association As* ~ ~           ~ 266 0

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