2007MNRAS.378L..24B

Query : 2007MNRAS.378L..24B

2007MNRAS.378L..24B - Mon. Not. R. Astron. Soc., 378, L24-L28 (2007/June-2)

L and T dwarfs in the Hyades and Ursa Major moving groups.

BANNISTER N.P. and JAMESON R.F.

Abstract (from CDS):

We have used the moving cluster method to identify three L dwarfs and one T dwarf in the Ursa Major/Sirius moving group (age 400 Myr). Five L dwarfs and two T dwarfs are found to belong to the Hyades moving group (age 625 Myr). These L and T dwarfs define 400- and 625-Myr empirical isochrones, assuming that they have the same age. Moving group membership does not guarantee coevality.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): stars: kinematics - stars: low-mass, brown dwarfs - open clusters and associations: individual: Ursa Major - open clusters and associations: individual: Hyades - galaxies: star clusters

Simbad objects: 29

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Number of rows : 29
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 2MASS J00325937+1410371 BD* 00 32 59.37576 +14 10 37.1136           L8V 32 0
2 LSPM J0036+1821 BD* 00 36 16.1118891182 +18 21 10.286665966       18.451 16.053 L3.5 230 0
3 2MASS J01075242+0041563 BD* 01 07 52.42200 +00 41 56.3964           L8 64 0
4 DENIS J020529.0-115925 BD* 02 05 29.3651195393 -11 59 29.721210536           L7V 156 0
5 2MASS J02431371-2453298 BD* 02 43 13.71792 -24 53 29.8356           T6.0 55 0
6 Cl* Melotte 22 KPNO 2 BD* 03 45 43.1616128256 +25 40 23.239779672         17.36 L0V 136 0
7 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
8 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
9 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
10 * alf CMa SB* 06 45 08.91728 -16 42 58.0171 -1.51 -1.46 -1.46 -1.46 -1.43 A0mA1Va 1610 0
11 2MASSI J0825196+211552 BD* 08 25 19.6125672818 +21 15 51.549358145       21.97 19.22 L7.5V 138 0
12 NAME UMa Region reg 11 00 +50.0           ~ 333 0
13 * bet UMa PM* 11 01 50.4797515135 +56 22 56.761138187 2.35 2.35 2.37 2.31 2.35 A1IVps 462 0
14 * alf UMa ** 11 03 43.67152 +61 45 03.7249 3.78 2.86 1.79 0.98 0.40 G9III+A7.5 448 0
15 * gam UMa Em* 11 53 49.8473166 +53 41 41.135025 2.440 2.450 2.440 2.44 2.47 A0V 417 0
16 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
17 * del UMa PM* 12 15 25.5598467041 +57 01 57.421119850 3.460 3.410 3.320 3.25 3.25 A2Vn 312 0
18 2MASS J12171110-0311131 BD* 12 17 11.10288 -03 11 13.1748           T7.5 92 0
19 SIPS J1228-1547 BD* 12 28 15.23184 -15 47 34.2312       20.414 18.042 L5.5+L5.5 151 0
20 NAME Ursa Major Moving Group MGr 12 32 +57.0           ~ 467 1
21 * eps UMa a2* 12 54 01.7495922 +55 57 35.362645 1.76 1.75 1.77 1.79 1.82 A1III-IVpkB9 488 0
22 * zet01 UMa SB* 13 23 55.5422805173 +54 55 31.295579890 2.11 2.271 2.220 2.10 2.12 A1.5Vas 320 0
23 2MASS J14460061+0024519 BD* 14 46 00.61560 +00 24 51.9660           L5V 38 0
24 * eta CrB C BD* 15 23 22.63488 +30 14 56.2092           L8V 118 1
25 2MASS J16241436+0029158 BD* 16 24 14.36712 +00 29 15.8172           T6V 162 0
26 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
27 NAME Hyades Moving Group MGr ~ ~           ~ 300 0
28 NAME Galactic Bar reg ~ ~           ~ 1458 0
29 NAME Pleiades Moving Group MGr ~ ~           ~ 297 0

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