ARES v2: new features and improved performance

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...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2015-05, Vol.577, p.A67
Main Authors: Sousa, S. G., Santos, N. C., Adibekyan, V., Delgado-Mena, E., Israelian, G.
Format: Article
Language:English
Subjects:
Astronomy
Automation
Continuums
Error correction
methods: data analysis
Performance enhancement
Radial velocity
Spectra
stars: abundances
stars: solar-type
Tasks
techniques: spectroscopic
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Summary: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.
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/201425463