1996A&A...307..172S

Query : 1996A&A...307..172S

1996A&A...307..172S - Astronomy and Astrophysics, volume 307, 172-183 (1996/3-1)

Spread of the lithium abundance in halo stars.

SPITE M., FRANCOIS P., NISSEN P.E. and SPITE F.

Abstract (from CDS):

The observed scatter of the lithium abundance around a "plateau" is revisited for three samples of stars for which the temperature has been determined from either the excitation temperature, or the dereddened color (b-y)o or the profile of the Hαwings. Systematic differences are noted between the three methods of temperature determination. From sample to sample the rms observed scatter of the lithium abundance varies from 0.06dex to 0.08dex (to be compared to the value 0.13 previously found by Thorburn (1994), for another sample of stars). We show that in all cases but one, this scatter is fully explained by the temperature and equivalent width errors. The intrinsic scatter, if real, is small.

Abstract Copyright: ∼

Journal keyword(s): stars: population II - abundances - Galaxy: halo - nucleosynthesis - cosmology: observations

Simbad objects: 28

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Number of rows : 28
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HD 16031 PM* 02 34 11.0485653360 -12 23 03.444110700 9.99 10.21 9.77     F0V 169 1
2 LP 831-70 PM* 03 06 05.4386096664 -22 19 17.828964660   11.97 11.80     ~ 48 0
3 CD-33 1173 Pe* 03 19 35.3159594880 -32 50 43.157572008   11.272 10.902 10.421 10.152 CEMP 58 0
4 L 56-75 Pe* 04 27 35.3251844232 -74 10 45.161208804   12.00 11.54     ~ 19 0
5 HD 34328 Pe* 05 13 05.2760918664 -59 38 44.265435029   9.95 9.5     G0wA8V 130 0
6 Ross 889 Pe* 09 40 43.2053340378 +01 00 29.511836741       10.39   sdA4 160 0
7 HD 84937 Pe* 09 48 56.0992891997 +13 44 39.326709913 8.49 8.68 8.32 7.97 7.70 F8Vm-5 795 0
8 HD 99383 Pe* 11 25 49.8351777360 -38 52 16.936102452   9.56 9.08     F2V 81 0
9 BD-04 3208 PM* 12 07 15.0721580835 -05 44 01.612773628   10.40 9.99     A7 147 0
10 HD 116064 Pe* 13 21 43.7779908364 -39 18 40.025179966   9.26 8.8     F9IV-Vm-5 133 0
11 Wolf 1492 Pe* 13 40 02.4921849768 -00 02 18.750053436 11.601 11.832 11.451 11.184 10.892 sdF0: 284 0
12 Ross 841 Pe* 14 02 30.0900761861 -05 39 05.181979951   11.508 11.149 10.866 10.576 sdA3 151 0
13 Wolf 550 SB* 14 50 07.8032346714 +00 50 27.127840325   11.47   10.8   sd:F5 79 0
14 Ross 805 PM* 15 32 00.5175376385 -11 22 44.799120920   12.69 12.151 12.10 11.38 F8 24 0
15 HD 140283 Pe* 15 43 03.0971190219 -10 56 00.595693188 7.508 7.711 7.212 6.63 8.21 F9VkA5mA1 937 0
16 BD+02 3375 Pe* 17 39 45.5948675731 +02 24 59.606824535 10.18 10.40 9.92 9.47 9.12 A5 199 0
17 HD 160617 Pe* 17 42 49.3234249010 -40 19 15.503834657   9.18 8.7 8.394 8.065 G0 204 0
18 BD-08 4501 PM* 17 47 27.9712915686 -08 46 47.733112329   11.18 10.59     sdF8 127 0
19 HD 321320 PM* 18 05 55.6129136388 -36 35 58.786414363   10.79 10.22     G0 42 0
20 BD+01 3597 Pe* 18 07 56.5963171590 +01 52 32.701833212   11.53 11.1 10.8   sdF5 66 0
21 HD 181743 PM* 19 23 42.7454702782 -45 04 56.914961207   10.13 9.71     F4 106 0
22 CD-42 14278 PM* 19 32 19.1474936380 -42 12 43.711761026   10.76 10.29     F5Vwl 38 0
23 LP 815-43 Pe* 20 38 13.2998605176 -20 26 10.850795808   11.31 10.72     ~ 76 0
24 CD-30 18140 Pe* 20 44 06.2872647830 -30 00 07.597192977   10.326 9.932     F8 90 0
25 HD 200654 Pe* 21 06 34.7513254468 -49 57 50.280288000   9.74 9.1     CEMP 107 0
26 CD-35 14849 PM* 21 33 49.7524989129 -35 26 14.228198341   10.95 10.56 10.59   B8 72 0
27 HD 213657 PM* 22 33 47.0565175200 -42 03 13.790346516   10.08 9.66     (G0)w(A) 93 0
28 CD-24 17504 Pe* 23 07 20.2534619736 -23 52 35.954286096   12.51 12.18     CEMP-no 86 0

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