J/AJ/110/1774 K giants in Baade's window (Terndrup+ 1995)
K Giants in Baade's window. I. Velocity and line-strength measurements
Terndrup D.M., Sadler E.M., Rich R.M.
<Astron. J. 110, 1774 (1995)>
=1995AJ....110.1774T 1995AJ....110.1774T
ADC_Keywords: Stars, giant ; Photometry ; Radial velocities
Abstract:
This is the first in a series of papers in which we analyze
medium-resolution spectra of over 400 K and M giants in Baade's
Window. Our sample was selected from the proper motion study of
Spaenhauer et al. (1992AJ....103..297S 1992AJ....103..297S). We have measured
radial velocities for most of the sample, as well as line-strength
indices on the system of Faber et al. (1985ApJS...57..711F 1985ApJS...57..711F). We
analyze the random and systematic errors in velocities and line
strengths, and show that the bright (V<16.0) stars in our sample are
predominantly foreground disk stars along the line of sight toward
Baade's Window. We find that most of the bulge K giants have stronger
Mg absorption at a given color than do stars in the solar
neighborhood. If the K giants in our sample are moderately old, we
suggest that on average they may have [Mg/Fe] approximately +0.3,
consistent with the results of recent high-resolution spectroscopy in
Baade's Window.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 74 432 Photometry and heliocentric radial velocities
table7.dat 95 432 Combined line-strength indices
table2.tex 128 456 AASTeX version of table2.dat
table7.tex 178 447 AASTeX version of table7.dat
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See also:
1996AJ....112..171S 1996AJ....112..171S : K giants in Baade's window. II. The abundance
distribution.
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Star Star identification from Spaenhauer et al.
(1992AJ....103..297S 1992AJ....103..297S)
7- 13 F7.3 mag Vmag ? V magnitude
15- 19 F5.3 mag e_Vmag ? Vmag error
21- 26 F6.3 mag V-I ? V-I color
28- 32 F5.3 mag e_V-I ? V-I error
34- 38 I5 km/s RVC ? CTIO velocity
40- 41 I2 km/s e_RVC ? CTIO velocity error
43- 47 I5 km/s RVA ? AAO velocity
49- 50 I2 km/s e_RVA ? AAO velocity error
52- 56 I5 km/s RVh ? Rich (1990) high-resolution velocity (1)
58- 62 I5 km/s RVl ? Rich (1990) low-resolution velocity (1)
64- 68 I5 km/s RV ? Mean velocity
70- 72 I3 km/s e_RV ? Mean velocity error
74 A1 --- Note [a] If CTIO and AAT velocities discrepant
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Note (1): Radial velocity measured by Rich (1990ApJ...362..604R 1990ApJ...362..604R). Rich's
spectra were taken either at "low" resolution (4.5A; similar to
the author's AAT and CTIO spectra) or "high" resolution (2.7A).
Rich estimates velocity errors of 34km/s (L) and 15km/s (H) for
the two samples.
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Star Star identification
7- 11 F5.2 mag Fe5270 ? Fe 5270 line strength index
13- 17 F5.2 mag e_Fe5270 ? Fe5270 error
19- 23 F5.2 mag Fe5335 ? Fe 5335 line strength index
25- 29 F5.2 mag e_Fe5335 ? Fe5335 error
31- 35 F5.2 mag <Fe> ? <Fe> line strength index
37- 41 F5.2 mag e_<Fe> ? <Fe> error
43- 47 F5.2 mag HBeta ? H Beta line strength index
49- 53 F5.2 mag e_HBeta ? HBeta error
55- 60 F6.3 mag CN ? CN line strength index
62- 67 F6.3 mag e_CN ? CN error
69- 74 F6.3 mag Mg1 ? Mg 1 line strength index
76- 81 F6.3 mag e_Mg1 ? Mg1 error
83- 88 F6.3 mag Mg2 ? Mg 2 line strength index
90- 95 F6.3 mag e_Mg2 ? Mg2 error
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Origin: AAS CD-ROM series, Volume 5, 1995 Lee Brotzman [ADS] 02-Nov-1995
(End) [CDS] 25-Jan-1996