2004AJ....127..373T

Query : 2004AJ....127..373T

2004AJ....127..373T - Astron. J., 127, 373-379 (2004/January-0)

Elemental abundances of three red giants in Terzan 7, a globular cluster associated with the Sagittarius galaxy.

TAUTVAISIENE G., WALLERSTEIN G., GEISLER D., GONZALEZ G. and CHARBONNEL C.

Abstract (from CDS):

Chemical abundances in three giants in Terzan 7, a globular cluster associated with the Sagittarius dwarf galaxy, have been determined using high-resolution spectra obtained with the UVES spectrograph on the ESO 8.2 m Kueyen telescope. We find the overall metallicity of the stars to be [Fe/H]=-0.61±0.07, which is slightly higher than that previously evaluated from photometry and used for the age determination of this cluster. This metallicity yields an age of about 6 Gyr, which is slightly lower than derived from previous estimates. The relative abundance ratios of various chemical elements to iron lie between those of its host galaxy's metal-poor and metal-rich stars and reveal an intriguing similarity to the pattern seen in the Large Magellanic Cloud.

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Journal keyword(s): Galaxies: Individual: Name: Sagittarius Dwarf Spheroidal - Galaxy: Globular Clusters: Individual: Name: Terzan 7 - Stars: Abundances - Stars: Late-Type

VizieR on-line data: <Available at CDS (J/AJ/127/373): table1.dat>

Simbad objects: 9

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Number of rows : 9
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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
2 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
3 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
4 Cl* Terzan 7 BCP 1282 * 19 17 39.3629396232 -34 39 06.458022180   17.45 16.08     ~ 10 0
5 Cl* Terzan 7 SL 16 * 19 17 43.20 -34 39 43.2   16.61 15.04     ~ 6 0
6 Cl* Terzan 7 SL 35 * 19 17 43.4983367160 -34 39 11.544997464   17.43 16.08     ~ 6 0
7 Cl Terzan 7 GlC 19 17 43.92 -34 39 27.8           ~ 460 0
8 Cl Arp 2 GlC 19 28 44.11 -30 21 20.3     12.41     ~ 384 0
9 Cl Terzan 8 GlC 19 41 44.41 -33 59 58.1     11.54     ~ 357 0

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