| Issue |
A&A
Volume 577, May 2015
|
|
|---|---|---|
| Article Number | A67 | |
| Number of page(s) | 4 | |
| Section | Numerical methods and codes | |
| DOI | https://doi.org/10.1051/0004-6361/201425463 | |
| Published online | 05 May 2015 | |
Research Note
ARES v2: new features and improved performance ⋆,⋆⋆
1
Instituto de Astrofísica e Ciências do Espaço, Universidade do
Porto, CAUP, Rua das
Estrelas, 4150-762
Porto,
Portugal
e-mail:
sousasag@astro.up.pt
2
Departamento de Física e Astronomia, Fac. de Ciências,
Universidade do Porto, Rua do Campo
Alegre, 4169-007
Porto,
Portugal
3
Instituto de Astrofísica de Canarias, 38200, La Laguna, Tenerife, Spain
4
Departamento de Astrofisica, Universidade de La
Laguna, 38205, La
Laguna, Tenerife,
Spain
Received: 4 December 2014
Accepted: 19 March 2015
Aims. We present a new upgraded version of ARES. The new version includes a series of interesting new features such as automatic radial velocity correction, a fully automatic continuum determination, and an estimation of the errors for the equivalent widths.
Methods. The automatic correction of the radial velocity is achieved with a simple cross-correlation function, and the automatic continuum determination, as well as the estimation of the errors, relies on a new approach to evaluating the spectral noise at the continuum level.
Results. ARES v2 is totally compatible with its predecessor. We show that the fully automatic continuum determination is consistent with the previous methods applied for this task. It also presents a significant improvement on its performance thanks to the implementation of a parallel computation using the OpenMP library.
Key words: techniques: spectroscopic / methods: data analysis / stars: solar-type / stars: abundances
Automatic Routine for line Equivalent widths in stellar Spectra – ARES webpage: http://www.astro.up.pt/~sousasag/ares/
© ESO, 2015
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