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Stellar physics with the ALHAMBRA photometric system

 

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Author: Aparicio Villegas, T.
Alfaro, Emilio J.
Cabrera Caño, Jesús María
Moles, M.
Benítez, N.
Perea, J.
Del Olmo, A.
Fernández Soto, A.
Cristóbal Hornillos, D.
Castander, F. J.
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2011
Published in: Journal of Physics: Conference Series, 328, 012004-1-012004-8.
Document type: Article
Abstract: The ALHAMBRA photometric system was specifically designed to perform a tomography of the Universe in some selected areas. Although mainly designed for extragalactic purposes, its 20 contiguous, equal-width, medium-band photometric system in the optical wavelength range, shows a great capacity for stellar classification. In this contribution we propose a methodology for stellar classification and physical parameter estimation (T<SUB>eff</SUB>, log g, [Fe/H], and color excess E(B - V)) based on 18 independent reddening-free Q-values from the ALHAMBRA photometry. Based on the theoretical Spectral library BaSeL 2.2, and applied to 288 stars from the Next Generation spectral Library (NGSL), we discuss the reliability of the method and its dependence on the extinction law used.
Cite: Aparicio Villegas, T., Alfaro, E.J., Cabrera Caño, J.M., Moles, M., Benítez, N., Perea, J.,...,Castander, F.J. (2011). Stellar physics with the ALHAMBRA photometric system. Journal of Physics: Conference Series, 328, 012004-1-012004-8.
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URI: http://hdl.handle.net/11441/67288

DOI: 10.1088/1742-6596/328/1/012004

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