2006ApJ...636..821F

Query : 2006ApJ...636..821F

2006ApJ...636..821F - Astrophys. J., 636, 821-841 (2006/January-2)

Abundances of Baade's Window giants from Keck HIRES spectra. I. Stellar parameters and [Fe/H] values.

FULBRIGHT J.P., McWILLIAM A. and RICH R.M.

Abstract (from CDS):

We present the first results of a new abundance survey of the Milky Way bulge based on Keck HIRES spectra of 27 K giants in the Baade's Window (l=1°, b=-4°) field. The spectral data used in this study are of much higher resolution and signal-to-noise ratio than previous optical studies of Galactic bulge stars. The [Fe/H] values of our stars, which range between -1.29 and +0.51, were used to recalibrate large low-resolution surveys of bulge stars. Our best value for the mean [Fe/H] of the bulge is -0.10±0.04. This mean value is similar to the mean metallicity of the local disk and indicates that there cannot be a strong metallicity gradient inside the solar circle. The metallicity distribution of stars confirms that the bulge does not suffer from the so-called G dwarf problem. This paper also details the new abundance techniques necessary to analyze very metal-rich K giants, including a new Fe line list and regions of low blanketing for continuum identification.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: Abundances - Galaxy: Bulge - Stars: Abundances

VizieR on-line data: <Available at CDS (J/ApJ/636/821): stars.dat table3.dat table4.dat table5.dat table6.dat>

Simbad objects: 50

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Number of rows : 50
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 * rho For RG* 03 47 56.0403321960 -30 10 04.378048212   6.52 5.54     G6III 77 0
2 * gam Tau ** 04 19 47.6039239005 +15 37 39.511385129 5.46 4.64 3.65 4.83   G9.5IIIabCN0.5 569 0
3 * phi Tau PM* 04 20 21.2160972528 +27 21 02.708298576   6.098 4.951     K2III 89 0
4 * tet01 Tau SB* 04 28 34.4979222951 +15 57 44.221169423 5.510 4.780 3.840 5.48   G9IIIFe-0.5 509 0
5 * eps Tau ** 04 28 37.0002551195 +19 10 49.563140930 5.42 4.54 3.53     G9.5IIICN0.5 628 1
6 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
7 HD 31539 * 04 57 22.3448571000 +17 09 13.198262652   6.801 5.490     K1III 48 0
8 * del Lep PM* 05 51 19.2960278488 -20 52 44.730655825 5.54 4.83 3.85 2.99 2.43 K0IIIbFe-1.5CH0.5 222 0
9 HD 40657 PM* 06 00 03.3496339392 -03 04 27.330496968 6.95 5.74 4.52 3.59 2.92 K1.5III-IIIbCN-1 82 0
10 * nu.03 CMa * 06 37 53.4213820872 -18 14 14.930466036 6.61 5.60 4.43 3.56 2.97 K1-III 93 0
11 * sig Hya * 08 38 45.4374492452 +03 20 29.166677783 6.91 5.63 4.43 3.54 2.98 K1III 148 0
12 * lam Pyx PM* 09 23 12.2502975192 -28 50 01.900865148 6.22 5.59 4.68 3.97 3.50 G8.5IIIbFe-1 63 0
13 * mu. Leo PM* 09 52 45.8170136628 +26 00 25.024269924 6.50 5.10 3.88 2.97 2.39 K2IIIbCN1Ca1 479 0
14 * alf Ant PM* 10 27 09.1006393440 -31 04 04.004901300 7.33 5.70 4.25 3.15 2.36 K3III 81 0
15 * del Crt PM* 11 19 20.4473515372 -14 46 42.743409457 5.66 4.67 3.56 2.73 2.13 G9IIICH0.5 180 0
16 * ksi Hya ** 11 33 00.1149306166 -31 51 27.447975478 5.17 4.47 3.54 2.84 2.36 G7IIIb 269 0
17 * omi Vir SB* 12 05 12.5318326945 +08 43 58.866875781 5.75 5.11 4.12 3.38 2.89 G8IIICN0.5CH1Ba1 301 0
18 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2417 1
19 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
20 Cl* NGC 6522 ARP 4167 * 18 03 22.5158244264 -29 59 25.114686324   18.52 16.883   14.982 ~ 23 0
21 ISOGAL-P J180323.6-300159 RG* 18 03 23.5582252344 -30 01 59.005714548     13.804   11.744 ~ 42 0
22 [B86] 52 RG* 18 03 28.2446747112 -30 04 10.994438208     16.027   14.015 M1 32 0
23 Cl* NGC 6522 ARP 4072 * 18 03 28.3935538320 -29 59 58.008117552     16.308   14.376 ~ 18 0
24 Cl* NGC 6522 ARP 4329 RG* 18 03 28.4320629024 -29 58 41.691364068     15.110 14.58 13.282 ~ 43 0
25 Cl* NGC 6522 ARP 4325 * 18 03 28.9774092288 -29 58 46.316345052   18.31 16.718   14.989 ~ 10 0
26 Cl* NGC 6522 ARP 3220 * 18 03 30.5130730272 -30 05 25.151848656   18.08 16.594   14.772 ~ 8 0
27 NAME Baade Window reg 18 03.5 -30 01           ~ 643 3
28 Cl* NGC 6522 ARP 4003 Pe* 18 03 33.3595221792 -29 58 12.327129660   16.70 15.087   13.380 ~ 23 0
29 Cl* NGC 6522 ARP 4025 * 18 03 33.8757203808 -29 58 56.597639916     16.222   14.574 ~ 21 0
30 Cl* NGC 6522 ARP 4047 * 18 03 34.4518461408 -29 59 46.814513316   18.34 16.837   15.195 ~ 8 0
31 [B86] 91 RG* 18 03 35.7607045248 -29 58 35.431936716     15.725   13.929 M1 32 0
32 Cl* NGC 6522 ARP 1025 * 18 03 35.8048533528 -29 59 03.484076208   18.52 16.763   14.824 ~ 15 0
33 Cl* NGC 6522 ARP 1039 * 18 03 36.4211026056 -29 59 15.246051864     16.894   15.051 ~ 14 0
34 OGLE BLG-LPV-194566 RG* 18 03 38.1857173440 -30 00 51.626329452     14.303   12.481 ~ 25 0
35 Cl* NGC 6522 ARP 1141 * 18 03 41.8871009352 -30 00 04.277316852   17.40 15.876   14.025 ~ 20 0
36 Cl* NGC 6522 ARP 1152 * 18 03 42.9712053504 -29 59 43.833538068   18.19 16.747   15.488 ~ 8 0
37 Cl* NGC 6522 ARP 1151 RG* 18 03 43.1986660896 -29 59 40.530495480   17.28 15.914   14.247 ~ 25 0
38 Cl* NGC 6522 ARP 1156 * 18 03 44.2812104616 -29 59 34.339987176   17.47 16.08   14.187 ~ 12 0
39 Cl* NGC 6522 ARP 1158 * 18 03 44.4373653960 -29 59 38.366620044     16.463   14.742 ~ 8 0
40 Cl* NGC 6522 ARP 2172 * 18 03 44.7601658112 -30 03 38.224818828   18.46 16.911   15.088 ~ 8 0
41 Cl* NGC 6522 ARP 1194 * 18 03 48.5741615496 -29 59 31.140079800     16.114   14.182 ~ 18 0
42 Cl* NGC 6522 ARP 2119 RG* 18 03 49.3859871360 -30 02 44.120460336     15.678 15.25 13.965 ~ 18 0
43 Cl* NGC 6522 ARP 1322 RG* 18 03 49.3866105024 -30 01 54.191622504   16.46 14.467   12.532 ~ 39 0
44 Cl* NGC 6522 ARP 1202 * 18 03 49.8867576624 -30 00 08.464056516     15.804 15.25 13.963 ~ 21 0
45 [B86] 160 LP* 18 03 49.9618413912 -30 03 00.605538864     14.453   12.284 M2 13 0
46 Cl* NGC 6522 ARP 2154 * 18 03 51.7462761528 -30 03 18.241483428     16.545   14.811 ~ 7 0
47 [B86] 174 RG* 18 03 53.4252281808 -30 02 08.605163508     15.477 14.93 13.610 M2 13 0
48 NGC 6528 GlC 18 04 49.61 -30 03 20.8   12.12 10.65     ~ 561 0
49 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 644 0
50 NAME Local Group GrG ~ ~           ~ 9325 0

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