2002A&A...395..515B

Query : 2002A&A...395..515B

2002A&A...395..515B - Astronomy and Astrophysics, volume 395, 515-518 (2002/11-4)

On the lithium content of the globular cluster M 92.

BONIFACIO P.

Abstract (from CDS):

I use literature data and a new temperature calibration to determine the Li abundances in the globular cluster M 92. Based on the same data, Boesgaard et al. have claimed that there is a dispersion in Li abundances in excess of observational errors. This result has been brought as evidence for Li depletion in metal-poor dwarfs. In the present note I argue that there is no strong evidence for intrinsic dispersion in Li abundances, although a dispersion as large as 0.18 dex is possible. The mean Li abundance, A(Li)=2.36, is in good agreement with recent results for field stars and TO stars in the metal-poor globular cluster NGC 6397. The simplest interpretation is that this constant value represents the primordial Li abundance.

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Journal keyword(s): diffusion - stars: abundances - stars: atmospheres - stars: population II - Galaxy: globular clusters: individual: M 92 - cosmology: observations

Simbad objects: 19

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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 - 2024 		#notes
1 HD 16031 PM* 02 34 11.0485653360 -12 23 03.444110700 9.99 10.21 9.77     F0V 169 1
2 HD 19445 PM* 03 08 25.5883873084 +26 19 51.400965175 8.29 8.52 8.06 7.60 7.27 G2VFe-3 771 0
3 HD 284248 Pe* 04 14 35.5161858536 +22 21 04.252516252 9.49 9.68 9.23 8.77 8.43 sdG0 186 0
4 HD 34328 Pe* 05 13 05.2760918664 -59 38 44.265435029   9.95 9.5     G0wA8V 130 0
5 BD+24 1676 Pe* 07 30 41.2662525096 +24 05 10.248524088   11.15 10.7 10.4   F 129 0
6 BD-03 2525 SB* 08 59 10.1118302427 -04 01 36.525356927   10.114 9.648 9.335 9.005 F3 132 0
7 Ross 453 PM* 12 10 55.7733238889 +00 23 54.332076195   11.53   10.9   F2 108 0
8 Wolf 1447 Pe* 12 34 25.1299405728 +15 16 48.959531004   12.385 11.976 11.676 11.378 A6 68 0
9 Wolf 449 Pe* 12 55 40.9065434829 +12 33 30.772933965   11.795 11.289 10.971 10.622 F6 69 0
10 BD+34 2476 PM* 13 59 09.4837849799 +33 51 39.379962282 10.25 10.44   9.7   sdF5 160 0
11 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2115 0
12 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 1975 0
13 Cl* NGC 6341 SH 80 * ~ ~   18.68 18.27     ~ 3 0
14 Cl* NGC 6341 SH 60 * ~ ~   18.48 18.02     ~ 5 0
15 Cl* NGC 6341 SH 46 * ~ ~   18.52 18.04     ~ 9 0
16 Cl* NGC 6341 SH 350 * ~ ~   18.49 18.00     ~ 6 0
17 Cl* NGC 6341 SH 21 * ~ ~   18.45 17.94     ~ 9 0
18 Cl* NGC 6341 SH 18 * ~ ~   18.46 17.98     ~ 11 0
19 Cl* NGC 6341 SH 34 * ~ ~   18.46 17.95     ~ 6 0

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