2020RNAAS...4...92G

Query : 2020RNAAS...4...92G

2020RNAAS...4...92G - Research Notes of the AAS, 4, 92 (2020/June-0)

The Low-mass Members of the Ursa Major Association.

GAGNE J., FAHERTY J.K. and POPINCHALK M.

Abstract (from CDS):

We present a set of over-densities in spatial-kinematic space previously identified by Kounkel & Covey () that may constitute extended tidal tails associated with the nearby, 400 Myr old Ursa Major association. This sample of 1599 stars has a main-sequence turnoff point consistent with the age of Ursa Major, and might contain its missing low-mass members. It includes four candidate white dwarfs with properties that seem consistent with a total age of about 400 Myr, but we estimate from older white dwarf interlopers that about 33% of the sample may be contaminated by random field stars.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Astronomy data analysis - Stellar kinematics - Proper motions

Simbad objects: 25

goto Full paper

goto View the references in ADS

Number of rows : 25
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 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1453 0
3 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
4 * bet Aur SB* 05 59 31.7229284 +44 56 50.757259 1.97 1.93 1.90 1.82 1.83 A1IV-Vp 433 1
5 NAME AB Dor Moving Group MGr 06 38 53.4 -42 50 04           ~ 540 0
6 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
7 Cl Platais 8 OpC 09 06 04.4 -58 25 09           ~ 97 0
8 [KC2019] Theia 1091 As* 09 14 50.3 -66 29 00           ~ 2 0
9 IC 2602 OpC 10 42 55.9 -64 25 22           ~ 735 0
10 [KC2019] Theia 908 As* 11 22 29.67 -56 37 15.0           ~ 3 0
11 Gaia DR3 6125462050949989376 WD* 12 15 21.7328765544 -52 36 46.033055208           DB 8 0
12 NAME Lower Centaurus Crux As* 12 19 -57.1           ~ 565 1
13 NAME Ursa Major Moving Group MGr 12 32 +57.0           ~ 467 1
14 NAME Upper Centaurus Lupus MGr 15 24 -41.9           ~ 567 1
15 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
16 4U 1624-49 LXB 16 28 02.825 -49 11 54.61           ~ 250 0
17 [KC2019] Theia 1008 As* 20 34 30.5 +64 25 08           ~ 3 0
18 HD 199713 V* 20 55 29.1976559472 +65 41 14.225257716   7.33 7.40     B9 16 0
19 [KC2019] Theia 1009 As* 23 18 08.58 +50 57 55.5           ~ 2 0
20 Gaia DR3 1923337589813789824 WD* 23 22 27.2331346608 +39 44 56.354698248           DA 10 0
21 GALEX J233848.4+404804 WD* 23 38 48.5972646888 +40 48 03.820275468           DC: 8 0
22 [KC2019] Theia 906 As* 23 58 13.03 +57 55 45.4           ~ 3 0
23 Gaia DR3 1944051392455881728 WD* 23 58 33.2993850648 +51 08 15.537627816           DA 7 0
24 NAME Sirius Moving Group MGr ~ ~           ~ 125 0
25 NAME Coma Berenices Moving Group MGr ~ ~           ~ 103 0

To bookmark this query, right click on this link: simbad:objects in 2020RNAAS...4...92G and select 'bookmark this link' or equivalent in the popup menu