Bibcode
Sousa, S. G.; Santos, N. C.; Israelian, G.; Mayor, M.; Monteiro, M. J. P. F. G.
Referencia bibliográfica
Astronomy and Astrophysics, Volume 469, Issue 2, July II 2007, pp.783-791
Fecha de publicación:
7
2007
Revista
Número de citas
288
Número de citas referidas
260
Descripción
Aims:We present a new automatic code (ARES) for determining equivalent
widths of the absorption lines present in stellar spectra. We also
describe its use for determining fundamental spectroscopic stellar
parameters. Methods: The code is written in C++ based on the
standard method of determining EWs and is available for the community.
The code automates the manual procedure that the users normally carry
out when using interactive routines such as the splot routine
implemented in IRAF. Results: We test the code using both
simulated and real spectra with different levels of resolution and noise
and comparing its measurements to the manual ones obtained in the
standard way. The results shows a small systematic difference, always
below 1.5 mÅ. This can be explained by errors in the manual
measurements caused by subjective continuum determination. The code
works better and faster than others tested before.
ARES Webpage: http://www.astro.up.pt/~sousasag/ares/ Full Table [see
full text] is 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/469/783