Bibcode
Sousa, S. G.; Alapini, A.; Israelian, G.; Santos, N. C.
Bibliographical reference
Astronomy and Astrophysics, Volume 512, id.A13
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3
2010
Journal
Citations
31
Refereed citations
29
Description
Aims: Precise determination of the stellar effective temperature
of solar type stars is extremely important for astrophysics. We present
an effective temperature calibration for FGK dwarf stars using the line
equivalent width ratios of spectral absorption lines. Methods: We
used the automatic code ARES to measure the equivalent width for several
spectral lines. These measurements were used for calibration with the
precise effective temperature derived from spectroscopy presented in a
previous work. Results: We present the effective temperature
calibration for 433 line equivalent width ratios built from 171 spectral
lines of different chemical elements. We also make a free code available
that uses this calibration and that can be an extension to ARES for fast
and automatic estimation of spectroscopic effective temperature of solar
type stars.
Full Table 2 and line list are only available in electronic form at the
CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/512/A13
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