2007A&A...469..783S


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET02:39:37

2007A&A...469..783S - Astronomy and Astrophysics, volume 469, 783-791 (2007/7-2)

A new code for automatic determination of equivalent widths: Automatic Routine for line Equivalent widths in stellar Spectra (ARES).

SOUSA S.G., SANTOS N.C., ISRAELIAN G., MAYOR M. and MONTEIRO M.J.P.F.G.

Abstract (from CDS):

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. 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. 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 1.5mÅ. 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.

Abstract Copyright:

Journal keyword(s): methods: data analysis - techniques: spectroscopic - stars: abundances - stars: fundamental parameters

VizieR on-line data: <Available at CDS (J/A+A/469/783): table2.dat>

Simbad objects: 9

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Number of rows : 9

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 4308 PM* 00 44 39.2675256910 -65 38 58.282490370 7.31 7.193 6.552     G6VFe-0.9 223 1
2 * nu. Phe PM* 01 15 11.1225892742 -45 31 54.007631265 5.65 5.54 4.96 4.47 4.11 F9VFe+0.4 235 0
3 * 40 Cet PM* 01 16 59.0062659081 -02 16 44.971201842   7.08 6.52     G2V 67 0
4 HD 20201 PM* 03 12 54.3790014640 -47 09 18.839574461   7.87 7.28     F9.5V 50 0
5 HD 33214 PM* 04 52 20.7386469848 -82 28 33.637600889   9.49 8.58     K2IV-V 29 0
6 HD 36553 PM* 05 30 09.4798795467 -47 04 39.553000407   6.065 5.453     F8/G2 45 0
7 HD 69830 PM* 08 18 23.9469692487 -12 37 55.810202572   6.74 5.95     G8:V 474 1
8 HD 102117 PM* 11 44 50.4608441567 -58 42 13.356420097   8.20 7.45     G6V 98 1
9 HD 212301 PM* 22 27 30.9215928401 -77 43 04.529817437   8.31 7.76     F8V 80 1

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2021.03.08-02:39:37

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