1998AJ....115.1888S

Query : 1998AJ....115.1888S

1998AJ....115.1888S - Astron. J., 115, 1888-1893 (1998/May-0)

Keck HIRES abundances in the dwarf spheroidal galaxy Draco.

SHETRONE M.D., BOLTE M. and STETSON P.B.

Abstract (from CDS):

An analysis of high-resolution Keck HIRES spectra of four giants in the dwarf spheroidal galaxy Draco is presented. We find an unmistakable difference in [Fe/H] among the four stars analyzed, with the range -3.0 < [Fe/H] < -1.5. The abundance ratios are found to be consistent with a Population II sample, although the [Ca/Fe] ratio may be more nearly solar and the [Ba/Fe] ratio exhibits a steeper slope with [Fe/H] than has been found in the Galactic globular clusters or in the Galactic halo field stars. A hint of a deep-mixing pattern is found in one star (D473), suggesting that Draco giants may be more similar to globular cluster giants than they are to the field Population II giants.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Abundances - Galaxies: Dwarf - Stars: Abundances

CDS comments: Stars D NNN in Draco are [BS61] NNN.

Simbad objects: 17

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Number of rows : 17
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 2MASS J13414576+2824597 AB* 13 41 45.7668971856 +28 24 59.665303044   14.18 12.81     ~ 70 0
2 NGC 5272 265 RG* 13 41 55.0321396248 +28 19 14.930940144   14.53 13.18     ~ 60 0
3 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
4 NGC 5272 837 RG* 13 42 12.0532321224 +28 26 26.474013996   14.27 12.67     ~ 50 0
5 NGC 5272 1392 RG* 13 42 39.2310906024 +28 27 57.505630896   14.46 13.11     ~ 47 0
6 Cl* NGC 5272 SAW V236 RG* 13 42 41.4990637608 +28 19 08.050336392   14.303 12.661 12.398   ~ 64 0
7 NGC 6341 7018 RG* 17 16 37.4894075472 +43 06 15.600437640   13.47 12.18     ~ 77 0
8 NGC 6341 5106 RG* 17 16 55.5663254736 +43 09 27.691973352   13.526 12.463 12.337   ~ 27 0
9 NGC 6341 7122 AB* 17 16 57.3796096896 +43 07 23.741615280   13.438 12.327 12.234   ~ 34 0
10 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
11 NGC 6341 3065 RG* 17 17 14.1278300304 +43 10 46.201331604   13.68 12.49     ~ 52 0
12 NGC 6341 3013 Ro* 17 17 21.7194706080 +43 12 53.395475724   13.36 12.03     ~ 67 0
13 2MASS J17193600+5756289 Pe* 17 19 36.0078870960 +57 56 28.901490648   18.80 17.611   16.208 ~ 22 0
14 [BS61] 267 V* 17 19 44.7352182696 +57 57 36.972675396   18.53 17.183 16.283 15.556 ~ 24 0
15 [BS61] 24 RG* 17 19 58.8879464808 +57 57 20.893563360   18.37 17.212   15.759 ~ 22 0
16 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
17 [BS61] 119 RG* 17 20 16.1310888024 +57 52 55.986313692   18.62 17.635 16.859 16.224 ~ 38 0

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