1998A&A...330L..33J


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.20CET03:48:50

1998A&A...330L..33J - Astronomy and Astrophysics, volume 330, L33-36 (1998/2-2)

Field halo stars: the globular cluster connection.

JEHIN E., MAGAIN P., NEUFORGE C., NOELS A. and THOUL A.A.

Abstract (from CDS):

High resolution and high signal-to-noise spectra of about 20 metal-poor stars have been analysed. The correlations between the relative abundances of 16 elements have been studied, with a special emphasis on the neutron-capture ones. This analysis reveals the existence of two subpopulations of field halo stars, namely Pop IIa and Pop IIb. They differ by the behaviour of the s-process elements versus the α and r-process elements. A scenario for the formation of these stars is presented, which closely relates the origin of field halo stars to the evolution of globular clusters. According to this scenario, the two sub-populations originate from two different stages in the globular cluster's chemical evolution.

Abstract Copyright:

Journal keyword(s):

Simbad objects: 19

goto View the reference in ADS

Number of rows : 19

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 22879 Pe* 03 40 22.0654223510 -03 13 01.124769689 7.146 7.222 6.667 6.346 6.016 G0VmF2 426 0
2 HD 25704 ** 04 01 44.6318109883 -57 12 24.595289561   8.65 8.10     F7V 132 0
3 HD 59984 PM* 07 32 05.7631181661 -08 52 52.773345653   6.431 5.916     G0VFe-1.6CH-0.5 184 0
4 HD 61902 PM* 07 38 53.6547780139 -51 05 00.089759457   8.73 8.25     F5/6wF2 63 0
5 * 171 Pup PM* 07 45 34.9191268687 -34 10 21.283643355   5.95 5.37     F9V 278 0
6 HD 63598 PM* 07 48 53.5379266143 -24 58 24.217788534   8.47 7.93     G2V 55 0
7 HD 76932 PM* 08 58 43.9328634171 -16 07 57.805389219 6.47 6.39 5.86     G2VFe-1.8CH-1 364 0
8 HD 78747 PM* 09 07 56.5761515149 -50 28 56.809652049   8.25 7.74     G5VFe-1.6CH-1 108 0
9 HD 79601 PM* 09 13 44.6281531458 -42 18 37.470774830   8.55 8.02     G2V 74 0
10 HD 97320 Pe* 11 11 00.7344947834 -65 25 37.746274848   9.769 9.269     F3V 121 0
11 HD 111971 ** 12 53 42.46017 -57 39 23.0781   9.20 8.93 8.57   F7V 51 0
12 HD 126793 PM* 14 30 12.6566476022 -62 51 44.463503453   8.76 8.24     G0wF3/5 57 0
13 HD 134169 SB* 15 08 18.0562462154 +03 55 50.107808860 8.14 8.22 7.70     F7V 194 0
14 HD 152924 PM* 17 00 46.2928853221 -64 33 01.185201910   8.44 8.04     F3V 38 0
15 HD 189558 PM* 20 01 00.2452564415 -12 15 20.355884232   8.27 7.72     F8/G2V 169 1
16 HD 196892 PM* 20 40 49.3803469997 -18 47 33.286582149   8.73 8.23     F6V 107 0
17 HD 199289 PM* 20 58 08.5241060028 -48 12 13.460660433   8.82 8.30     F5V 101 0
18 * gam Pav PM* 21 26 26.6048372 -65 21 58.314484 4.57 4.70 4.22 3.75 3.45 F9VFe-1.4CH-0.7 373 0
19 HD 215257 PM* 22 43 50.7183139841 +03 53 12.629544211   7.93   7.1   F5V 133 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 1998A&A...330L..33J and select 'bookmark this link' or equivalent in the popup menu


2020.02.20-03:48:50

© Université de Strasbourg/CNRS

    • Contact