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Stellar energy flux modelling under gridified software SYNTSPEC

Published online by Cambridge University Press:  15 February 2011

C. Turon ,
F. Meynadier ,
F. Arenou ,
Š. Mikolaitis  and
G. Tautvaišienė
Š. Mikolaitis
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Gostauto 12, LT-01108 Vilnius, Lithuania. e-mail: [email protected] & [email protected]
G. Tautvaišienė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Gostauto 12, LT-01108 Vilnius, Lithuania. e-mail: [email protected] & [email protected]
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Abstract

We present a gridified stellar energy flux modelling software SYNTSPEC for stellarspectra analysis. It is an example of data- and compute-intensive application running onthe testbed of the Enabling Grids for E-sciencE (EGEE) Grid compatible infrastructure,which brings the new quality to the research in astrophysics. The multi job application isrunning within the GRIDCOM system – a user friendly interface that allows a virtual workof a physically spread scientific group. The SYNTSPEC software calculates stellar energyfluxes and normalized to the continuum spectra that are applied for stellar classificationand determination of chemical compositions, effective temperatures, surface gravities andother parameters of stars. The SYNTSPEC application benefits from usage of large computingresources, which makes possible calculations of synthetic stellar spectra for significantwavelength ranges and numbers of stellar parameter combinations. The specific energy fluxmodelling will be used for the analysis of data, which will be produced by the EuropeanSpace Agency‘s Gaia space observatory.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 45: GAIA: At the Frontiers of Astrometry , 2010 , pp. 413 - 416
Copyright
© EAS, EDP Sciences 2011

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References

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