J/MNRAS/371/879 Effective temperatures of 215 FGK giants (Kovtyukh+, 2006)
High-precision effective temperatures of 215 FGK giants from line-depth ratios.
Kovtyukh V.V., Soubiran C., Bienayme O., Mishenina T.V., Belik S.I.
<Mon. Not. R. Astron. Soc., 371, 879-884 (2006)>
=2006MNRAS.371..879K 2006MNRAS.371..879K
ADC_Keywords: Stars, giant ; Effective temperatures
Keywords: stars: fundamental parameters
Abstract:
We present precise effective temperatures (Teff) of 215 FGK giants
determined using the method of line-depth ratios. For each star, we
have measured the line depths and equivalent widths of a large number
of spectral lines of low and high excitation potentials and
established ∼100 relations between Teff and their ratios. Starting
with an initial value Teff, the relations are then self-calibrated by
an iterative process. Our final estimates have been compared with very
accurate (1 per cent) published temperatures and show a good
agreement. Using our calibrations, we derive precise temperatures for
215 giants with near-solar metallicity, from high-resolution (R=42000)
and high signal-to-noise ratio (S/N=100250) echelle spectra, obtained
with the ELODIE spectrometer at the Observatoire de Haute Provence
(OHP).
Description:
The investigated spectra were obtained with the 193-cm telescope
equipped with the ELODIE spectrometer (R=42000).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 23 215 Effective temperatures of the programme stars
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See also:
J/A+AS/129/505 : Teff by Infrared Flux Method (Blackwell+ 1998)
J/A+A/339/858 : Calibration of stellar parameters (Di Benedetto 1998)
J/ApJ/626/446 : Effective temperature scale of FGK stars (Ramirez+, 2005)
J/AN/321/277 : MK-class III giants temperatures (Strassmeier+, 2000)
III/218 : ELODIE archive (Prugniel+, 2001)
http://atlas.obs-hp.fr/elodie/ : the ELODIE archive
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Star name
12- 15 I4 K Teff Effective temperature
17- 18 I2 --- o_Teff Number of calibrations used
20- 23 F4.1 K e_Teff Error of the mean Teff
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 28-Nov-2006