J/A+A/527/A40 Faint, high-Galactic-latitude red clump stars (Saguner+, 2011)
A spectroscopic survey of faint, high-Galactic-latitude red clump stars.
II. The medium resolution sample.
Saguner T., Munari U., Fiorucci M., Vallenari A.
<Astron. Astrophys. 527, A40 (2011)>
=2011A&A...527A..40S 2011A&A...527A..40S
ADC_Keywords: Stars, nearby ; Stars, late-type ; Radial velocities ;
Effective temperatures ; Spectroscopy
Keywords: Galaxy: kinematics and dynamics - Galaxy: structure -
solar neighborhood - stars: late-type -
stars: fundamental parameters - stars: horizontal-branch
Abstract:
The goal of our survey is to provide accurate and multi-epoch radial
velocities, atmospheric parameters (Teff, logg and [M/H]),
distances, and space velocities of faint red clump (RC) stars.
We recorded high signal-to-noise (S/N≥200) spectra of RC stars
over the 4750-5950Å range at a resolving power 5500. The target
stars are distributed across the great circle of the celestial
equator. Radial velocities were obtained via cross-correlation with
IAU radial velocity standards. Atmospheric parameters were derived via
χ2 fit to a synthetic spectral library. A large number of RC
stars from other surveys were re-observed to check the consistency of
our results and the absence of offsets and trends.
Description:
File arcs2f.dat contains the name, available photometric, additional
spectroscopic and calculated parameters of observed 245 Red Clump
stars that are observed at only one epoch.
File arcs2s.dat contains same data for 60 Red Clump stars that are
observed in an additional second epoch.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
arcs2f.dat 389 245 Parameters of observed 245 Red Clump stars at
only a first epoch
arcs2s.dat 389 60 Parameters of observed 60 Red Clump stars at
an additional second epoch
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
J/A+A/522/A79 : Faint, high-Galactic-latitude red clump stars (Valentini+ 2010)
Byte-by-byte Description of file: arcs2f.dat arcs2s.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD number
8- 13 I6 --- HIP HIP number
15- 20 I6 --- TYC1 TYCHO-2 1st identifier
22- 26 I5 --- TYC2 TYCHO-2 2nd identifier
28 I1 --- TYC3 TYCHO-2 3rd identifier
30- 40 A11 --- SpType MK spectral type from Michigan catalog (1)
42- 53 F12.8 deg RAdeg Right ascension (J2000, Ep=1991.25)
55- 66 F12.8 deg DEdeg Declination (J2000, Ep=1991.25)
68- 75 F8.4 deg GLON Galactic longitude
77- 84 F8.4 deg GLAT Galactic latitude
86- 91 F6.4 mag Hpmag Hipparcos Hp magnitude
93- 98 F6.4 mag e_Hpmag Error on Hpmag
100-103 F4.2 mag V-I Cousins V-I from Hipparcos catalog
105-108 F4.2 mag e_V-I Error on V-I
110-113 F4.2 mas plx1 Hipparcos (1997, Cat. I/239) parallax
115-118 F4.2 mas e_plx1 Error on Hipparcos parallax
120-123 F4.2 mas plx2 Hipparcos (2007, Cat. I/311) parallax
125-128 F4.2 mas e_plx2 Error on Hip2 parallax
130-135 F6.3 mag BTmag Tycho BT magnitude
137-141 F5.3 mag e_BTmag Error on Tycho BT magnitude
143-148 F6.3 mag VTmag Tycho VT magnitude
150-154 F5.3 mag e_VTmag Error on Tycho VT magnitude
156-161 F6.1 mas/yr pmRA Tycho-2 RA proper motion
163-166 F4.1 mas/yr e_pmRA Error on Tycho-2 RA proper motion
168-173 F6.1 mas/yr pmDE Tycho-2 DE proper motion
175-178 F4.1 mas/yr e_pmDE Error on Tycho-2 DE proper motion
180-185 F6.3 mag Jmag 2MASS J magnitude
187-191 F5.3 mag e_Jmag Error on 2MASS J magnitude
193-198 F6.3 mag Hmag 2MASS H magnitude
200-204 F5.3 mag e_Hmag Error on 2MASS H magnitude
206-211 F6.3 mag Kmag 2MASS Ks magnitude
213-217 F5.3 mag e_Kmag Error on 2MASS K magnitude
219-221 A3 --- q_Jmag 2MASS quality index
223-228 F6.3 mag Imag ? DENIS I magnitude
230-233 F4.2 mag e_Imag ? Error on IDENIS
235-237 I3 --- q_Imag ? DENIS quality index
239-254 F16.8 d HJD Heliocentric Julian date of Observation
256-259 F4.2 0.1nm FWHM FWHM of the night sky lines
261-265 F5.1 --- S/N S/N ratio of the spectra
267-272 F6.1 km/s RV Heliocentric radial velocity
274-276 F3.1 km/s e_RV Error on heliocentric radial velocity
278-281 I4 K Teff Effective temperature
283-285 I3 K e_Teff Error on effective temperature
287-290 F4.2 [cm/s2] logg Surface gravity
292-295 F4.2 [cm/s2] e_logg Error on surface gravity
297-301 F5.2 [Sun] [M/H] Metallicity
303-306 F4.2 [Sun] e_[M/H] Error on metallicity
308-313 F6.1 pc d Spectro-photometric distance
315-319 F5.1 pc e_d Error on spectro-photometric distance
321-328 F8.6 mag Av Extinction
330-338 F9.4 pc X Galactic X Coordinate
340-348 F9.4 pc Y Galactic Y coordinate
350-358 F9.4 pc Z Galactic Z coordinate
360-368 F9.4 km/s U Galactic U velocity
370-379 F10.5 km/s V Galactic V velocity
381-389 F9.4 km/s W Galactic W velocity
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Note (1): Houk et al. 1975-1999, see Catalogs
III/31, III/51, III/80, III/133, III/214
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Acknowledgements:
Tenay Saguner, tenay.saguner(at)oapd.inaf.it
References:
Valentini & Munari, Paper I 2010A&A...522A..79V 2010A&A...522A..79V, Cat. J/A+A/522/A79
(End) Patricia Vannier [CDS] 28-Feb-2011