2001PASP..113..519G

Query : 2001PASP..113..519G

2001PASP..113..519G - Publ. Astron. Soc. Pac., 113, 519-528 (2001/May-0)

Chemical compositions of four metal-poor giant stars.

GIRIDHAR S., LAMBERT D.L., GONZALEZ G. and PANDEY G.

Abstract (from CDS):

We present the chemical compositions of four K giants (CS 22877-1, CS 22166-16, CS 22169-35, and BS 16085-0050) that have [Fe/H] in the range -2.4 to -3.1. Metal-poor stars with [Fe/H]←2.5 are known to exhibit considerable star-to-star variations of many elements. This quartet confirms this conclusion. CS 22877-1 and CS 22166-16 are carbon-rich. There is significant spread of [α/Fe] within our samples, where [α/Fe] is computed from the mean of the [Mg/Fe] and [Ca/Fe] ratios. BS 16085-0050 is remarkably α-enriched with a mean [α/Fe] of +0.7, but CS 22169-35 is α-poor. The aluminum abundance also shows a significant variation over the sample. A parallel and unsuccessful search among high-velocity late-type stars for metal-poor stars is described.

Abstract Copyright: ∼

Journal keyword(s): Stars: Abundances - Stars: Chemically Peculiar - Stars: Late-Type

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 BPS CS 22166-0016 Pe* 00 58 23.8415767344 -14 47 06.878622912   13.34 12.75 12.324 11.898 CEMP-no 24 0
2 G 4-36 PM* 02 43 22.0483919796 +13 25 56.981522451   11.989 11.471 11.133 10.795 ~ 73 0
3 HD 285433 PM* 04 05 24.2579450136 +14 56 07.390410720   11.60   10.1   K0 16 0
4 HE 0409-1212 Pe* 04 12 13.8814287960 -12 05 05.075250072   13.843 12.897   11.764 ~ 72 0
5 G 8-30 SB* 04 22 28.2201031224 +20 33 13.170164256   12.78   11.401   K5V 18 0
6 V* V422 Aur PM* 05 23 42.6167558760 +50 44 51.076209120       10.5   K5 19 0
7 HD 246637 PM* 05 42 13.1302999449 +07 24 07.183918850   11.87   10.5   K4 34 0
8 Ross 413 PM* 06 06 29.9930098402 +04 30 41.295328865   11.866 10.913 10.532   K4 50 0
9 V* V2782 Ori BY* 06 10 15.8290883424 +21 19 56.438785992   12.22 11.10 10.50 9.786 K2 21 0
10 BD+43 1716 PM* 07 38 12.7670946576 +43 34 23.795753124       8.9   K2 23 0
11 G 111-28 PM* 07 42 24.4220928984 +42 56 22.647958260       9.8   K0:V: 20 0
12 BD+42 1773A PM* 07 50 59.9600731008 +42 29 59.807637600   11.8 10.89 10.0   K3 11 0
13 G 115-1 Pe* 08 22 17.5634958456 +41 04 36.344095068       10.2   K0 19 0
14 G 252-26 PM* 09 00 30.7971415712 +70 40 06.252181200       10.1   K3 24 0
15 Ross 885 PM* 09 14 18.8523622614 +20 01 39.943679693   15.3   13.8   K3 14 0
16 BD+41 1945 PM* 09 18 00.6547471968 +41 17 16.474078212       9.8   K0 19 0
17 G 53-24 PM* 10 07 15.9029415600 +00 17 51.052672464   12.68   10.7   K2 24 0
18 G 253-37 PM* 10 38 17.7894961982 +76 10 18.684903295       9.9   K4V 25 0
19 * 33 Sex PM* 10 41 24.1859419344 -01 44 29.371097184   7.145 6.250     G9IV 182 0
20 G 122-30 PM* 11 34 35.6202342641 +40 09 22.707824721       10.7   K0 22 0
21 BPS BS 16085-0050 Pe* 12 37 46.6781374776 +19 22 49.551755664 12.965 12.93 12.16 11.668 11.186 ~ 32 0
22 BPS CS 22877-0016 * 13 13 44.5184852280 -08 49 53.928098760   14.50 13.91 13.96   ~ 4 0
23 BPS CS 22877-0001 Pe* 13 13 55.3726775760 -12 11 41.666054388   12.78 12.38 11.695 11.218 CEMP-no 46 0
24 BPS CS 22877-0011 Pe* 13 14 40.1709557784 -09 35 46.570950420   14.49 13.81 13.96   ~ 24 0
25 BPS CS 22877-0051 Pe* 13 23 31.1382098376 -12 35 13.049781324 14.440 14.599 14.26     ~ 12 0
26 HD 122563 Pe* 14 02 31.8455084952 +09 41 09.944391876 7.47 7.10 6.19 5.37 4.79 G8:III:Fe-5 920 0
27 HD 134440 PM* 15 10 12.9678589986 -16 27 46.522175847 10.69 10.217 9.426 8.913 8.441 K2V 295 0
28 HD 134439 PM* 15 10 13.0873110544 -16 22 45.877317625 10.03 9.837 9.066 8.604 8.160 sd:K1Fe-1 341 0
29 HE 2323-0256 Pe* 23 26 29.8073738880 -02 39 58.036383180   15.125 14.321 14.289 13.358 CEMP-no 184 0

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