2012MNRAS.425.3188R

Query : 2012MNRAS.425.3188R

2012MNRAS.425.3188R - Mon. Not. R. Astron. Soc., 425, 3188-3200 (2012/October-1)

Chemical compositions of stars in two stellar streams from the galactic thick disc.

RAMYA P., REDDY B.E. and LAMBERT D.L.

Abstract (from CDS):

We present abundances for 20 elements for stars in two stellar streams identified by Arifyanto&Fuchs: 18 stars from the Arcturus stream and 26 from a new stream, which we call the AF06 stream, both from the Galactic thick disc.
Result. show that both streams are metal poor and very old (10-14 Gyr) with kinematics and abundances overlapping with the properties of local field thick-disc stars. Both streams exhibit a range in metallicity but with relative elemental abundances that are identical to those of thick-disc stars of the same metallicity. These results show that neither stream can result from dissolution of an open cluster. It is highly unlikely that either stream represents tidal debris from an accreted satellite galaxy. Both streams most probably owe their origin to dynamical perturbations within the Galaxy.

Abstract Copyright: © 2012 The Authors Monthly Notices of the Royal Astronomical Society 2012 RAS

Journal keyword(s): stars: abundances - stars: subdwarfs - Galaxy: disc - Galaxy: evolution - Galaxy: kinematics and dynamics - Galaxy: structure

Simbad objects: 55

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Number of rows : 55
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 BD+14 3 PM* 00 08 13.4339030928 +15 00 30.699796392   11.90   10.2   K2 28 0
2 BD+33 106 PM* 00 46 39.8382467832 +33 49 32.577760020       9.9   G3 32 0
3 Ross 789 PM* 01 32 09.2123949816 +34 33 20.773096488       10.2   K0 29 0
4 G 3-28 PM* 01 56 56.0995885565 +11 39 48.602027494   11.33   10.0   K0 42 0
5 BD+08 335 PM* 02 11 20.0414617009 +09 37 17.521785034   11.42   10.1   K0 34 0
6 HD 14056 PM* 02 17 07.1379633172 +21 34 00.522072958   9.66   8.7   G5 70 0
7 HD 16031 PM* 02 34 11.0485653360 -12 23 03.444110700 9.99 10.21 9.77     F0V 179 1
8 BD+22 396 PM* 02 48 37.4276707386 +22 35 54.368718096   10.68   9.9   G4 46 0
9 HD 21543 PM* 03 28 21.0836248328 -06 31 51.313523590   9.113 9.125     G2V 122 0
10 HD 22071 PM* 03 34 17.8714443576 +22 59 14.107520832   9.83   8.7   G0 27 0
11 HD 275573 PM* 03 34 57.1495745976 +38 18 24.134592996   10.83   9.8   G0 22 0
12 HD 22879 Pe* 03 40 22.0652879951 -03 13 01.124265616 7.146 7.222 6.667 6.346 6.016 G0VmF2 529 0
13 HD 232996 PM* 04 44 03.5996532758 +52 58 53.825209222       8.7   G0 36 0
14 HD 241253 PM* 05 09 56.9589768600 +05 33 26.741302308   10.24   9.4   G0 104 0
15 BD+68 394 PM* 05 37 39.5651502312 +68 44 06.642548124       9.2   F8 38 0
16 HD 294443 PM* 05 52 55.4379957984 -03 29 24.892922184   9.80 9.19     F8 31 0
17 G 102-44 PM* 06 02 43.3663230768 +13 04 37.143485292       10.3   G8 25 0
18 HD 41805 PM* 06 10 00.4958300689 +50 09 05.424893284       8.2   G0 25 0
19 BD+47 1276 PM* 06 16 42.9578574867 +47 03 37.249511501   9.97   8.7   K1 58 0
20 BD+48 1407 PM* 06 38 24.6845047968 +48 47 54.987356760       9.6   G4 38 1
21 HD 262553 PM* 06 43 46.4772515821 +25 31 30.290910359       9.6   G5 29 0
22 HD 233345 PM* 07 10 29.7879717264 +53 15 06.395576184       8.5   G5 43 0
23 HD 59374 PM* 07 30 29.0166014070 +18 57 40.616629308   9.03   8.2   F9 126 0
24 G 251-36 PM* 07 33 04.3538432048 +76 55 13.444219940       10.0   K3: 29 0
25 HD 69611 PM* 08 17 29.3481646355 -03 59 22.623439715   8.32 7.74     G0V 159 0
26 BD+20 2421 PM* 10 03 12.2757040453 +19 50 26.940864123   11.55   10.1   K2 27 0
27 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
28 HD 94028 PM* 10 51 28.1256073369 +20 16 38.965439278 8.51 8.69 8.22 7.82 7.54 F8 375 0
29 G 146-76 Pe* 10 59 57.4788948864 +44 46 43.724142012     10.4 10.1   ~ 38 0
30 HD 98398 PM* 11 19 14.0291851980 +05 40 46.064394044   10.11   8.8   K0 34 0
31 BD+14 2453 PM* 11 56 50.3911955287 +13 22 38.674120606   10.65   9.5   G8 39 0
32 G 197-45 PM* 12 09 28.8997904472 +51 56 01.080331584       10.3   G5 29 0
33 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1274 0
34 G 66-51 PM* 15 00 50.0690852592 +02 07 37.456745232   11.34   10.1   K0 38 0
35 HD 134113 SB* 15 07 46.5004807478 +08 52 47.202473395   8.83   7.9   F9 143 0
36 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
37 BD+08 3095 PM* 15 50 58.9334638272 +08 25 23.721884040   10.60   9.8   G2 91 0
38 BD+02 3363 PM* 17 36 48.1179294696 +02 50 19.675028904       10.3   G3 25 0
39 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
40 BD+37 2952 PM* 17 49 58.6305134928 +37 31 18.622904232       9.9   F9 22 0
41 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
42 BD+41 3306 PM* 19 19 00.5489000285 +41 38 04.582441681 10.01 9.67 8.86 8.18 7.66 K0V 331 0
43 BD+01 4107 PM* 20 49 20.6206206912 +01 55 30.127935648   10.80 10.12     G5 29 0
44 BD+06 4665 PM* 20 51 06.6816770233 +07 01 37.253336853   10.73   9.4   K3 39 0
45 BD+62 1916 PM* 21 15 05.7495352824 +62 50 28.031310672   10.27   9.0   G5 44 0
46 HD 204155 PM* 21 26 42.9050916792 +05 26 29.902289568   9.03   8.1   F7V 141 0
47 G 241-7 PM* 22 25 42.7263220704 +69 31 35.792931972       10.4   G2 23 0
48 G 67-40 PM* 23 01 46.3467621888 +11 49 17.191600248   11.41   10.1   K1 25 0
49 HD 220197 PM* 23 21 58.2870524605 +16 37 57.139537974   9.61   8.5   G5 56 0
50 NAME Galactic Bulge reg ~ ~           ~ 4794 0
51 NAME AF06 Stream MGr ~ ~           ~ 11 0
52 NAME Hyades Moving Group MGr ~ ~           ~ 300 0
53 NAME Hercules Stream MGr ~ ~           ~ 264 0
54 NAME Local Group GrG ~ ~           ~ 9325 0
55 NAME Arcturus Stream MGr ~ ~           ~ 83 1

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