2000A&A...354L..75M

Query : 2000A&A...354L..75M

2000A&A...354L..75M - Astronomy and Astrophysics, volume 354L75-78 (2000/2-3)

First VLT spectra of white dwarfs in a globular cluster.

MOEHLER S., HEBER U., NAPIWOTZKI R., KOESTER D. and RENZINI A.

Abstract (from CDS):

We present the first spectra obtained with the Very Large Telescope for white dwarfs in a globular cluster. Estimates of atmospheric parameters are obtained and compared to evolutionary tracks. We discuss possible implications for the distance scale of globular clusters and white dwarf evolution and demonstrate how white dwarfs might be used to establish an independent distance scale to globular clusters.

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Journal keyword(s): Stars: fundamental parameters - Stars: Population II - Stars: white dwarfs - globular clusters: individual: NGC 6397

Nomenclature: Table 1: Cl* NGC 6397 WF N-NNN N=5.

Simbad objects: 10

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Number of rows : 10
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 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
2 NGC 6397 162 HS* 17 40 38.4613882368 -53 38 31.347142908   13.06 13.23     sdOp 47 1
3 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
4 Cl* NGC 6397 WF 4-358 WD* 17 40 58.52 -53 42 25.3     22.73   22.71 DA 5 0
5 Cl* NGC 6397 WF 4-205 * 17 41 01.58 -53 43 15.3     23.99   23.69 ~ 1 0
6 Cl* NGC 6397 WF 2-846 WD* 17 41 01.78 -53 44 47.2     24.30   23.97 DA 4 0
7 Cl* NGC 6397 WF 2-51 WD* 17 41 04.52 -53 43 55.8     24.00   23.72 DA 4 0
8 Cl* NGC 6397 WF 2-479 WD* 17 41 07.06 -53 44 45.1     23.87   23.65 DA 4 0
9 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
10 CD-30 17706 WD* 20 10 56.8486912016 -30 13 06.627142663 11.654 12.286 12.242 12.311 12.381 DA3.1 267 0

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