J/AJ/135/196 Radial velocities of 45 metal-poor field stars (Carney+, 2008)
Line broadening in field metal-poor red giant and red horizontal branch stars.
Carney B.W., Latham D.W., Stefanik R.P., Laird J.B.
<Astron. J., 135, 196-208 (2008)>
=2008AJ....135..196C 2008AJ....135..196C
ADC_Keywords: Stars, nearby ; Radial velocities ; Stars, giant
Keywords: binaries: spectroscopic - Galaxy: halo; planetary systems -
stars: kinematics - stars: Population II - stars: rotation
Abstract:
We report 349 radial velocities for 45 metal-poor field red giant
branch (RGB) and red horizontal branch (RHB) stars, with time coverage
ranging from 1 to 21 years. We have identified one new spectroscopic
binary, HD 4306, and one possible such system, HD 184711. We also
provide 57 radial velocities for 11 of the 91 stars reported in our
previous work. All but one of the 11 stars had been found to have
variable radial velocities.
Description:
The spectra of our new program stars have been obtained in the same
fashion as those studied by Carney et al. (2003AJ....125..293C 2003AJ....125..293C), using
the Center for Astrophysics Digital Speedometers, primarily with the
1.5m Wyeth reflector at the Oak Ridge Observatory in Harvard,
Massachusetts as well as the 1.5m Tillinghast reflector and the MMT
instruments atop Mt. Hopkins in Arizona.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 81 139 List of all studied stars and stellar parameters
for stars in table2 of the paper
table3.dat 56 2508 Single-lined radial velocities
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Star Star name
13- 14 I2 h RAh Right ascension (J2000)
16- 17 I2 min RAm Right ascension (J2000)
19- 22 F4.1 s RAs Right ascension (J2000)
24 A1 --- DE- Declination sign (J2000)
25- 26 I2 deg DEd Declination (J2000)
28- 29 I2 arcmin DEm Declination (J2000)
31- 32 I2 arcsec DEs Declination (J2000)
34- 38 F5.2 [Sun] [Fe/H] ? Metallicity (1)
40- 44 F5.2 mag VMAG ? Absolute V magnitude (1)
46- 49 I4 K Teff ? Effective temperature (1)
51- 54 F4.2 [cm/s2] logg ? Gravity surface (1)
56- 59 F4.1 Rsun Rad ? Stellar radius (1)
61- 64 I4 pc Dist ? Heliocentric distance (1)
66- 69 I4 K TeffS ? Synthetic spectrum effective temperature (1)
71- 73 F3.1 [cm/s2] loggS ? Synthetic spectrum gravity surface (1)
75- 79 F5.2 [Sun] [Fe/H]S ? Synthetic spectrum metallicity (1)
80- 81 I2 km/s VrotS ? Synthetic spectrum rotational velocity (1)
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Note (1): Only for star in table2 of the paper.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Star Star name, as in table2.
13 A1 --- Tel Telescope code: W=Wyeth, T=Tillinghast, M=MMT
15- 29 A15 --- Temp Template used; see text for code
31- 43 F13.5 d HJD Heliocentric Julian Date
45- 51 F7.2 km/s RV Radial velocity
53- 56 F4.2 km/s e_RV The 1σ error in RV
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 11-Feb-2011