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Simultaneous Bayesian estimation of distances and ages from isochrones: SDSS and solar neighborhood FGK stars

Published online by Cambridge University Press:  01 October 2007

M. Franchini ,
C. Morossi ,
P. Di Marcantonio  and
M. L. Malagnini
M. Franchini
Affiliation:
INAF – Osservatorio Astronomico di Trieste, Via G.B. Tiepolo, 11, I–34143 Trieste, Italy email: franchini@oats.inaf.it
C. Morossi
Affiliation:
INAF – Osservatorio Astronomico di Trieste, Via G.B. Tiepolo, 11, I–34143 Trieste, Italy email: franchini@oats.inaf.it
P. Di Marcantonio
Affiliation:
INAF – Osservatorio Astronomico di Trieste, Via G.B. Tiepolo, 11, I–34143 Trieste, Italy email: franchini@oats.inaf.it
M. L. Malagnini
Affiliation:
INAF – Osservatorio Astronomico di Trieste, Via G.B. Tiepolo, 11, I–34143 Trieste, Italy email: franchini@oats.inaf.it Dipartimento di Astronomia, Università degli Studi di Trieste, Italy email: malagnini@oats.inaf.it
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Abstract

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By using a procedure based on the Bayesian probability theory we computed reliable and self–consistent estimates of absolute magnitude and age for about 2000 FKG spectral-type stars from SDSS–DR5, ELODIE, and INDO–US surveys, with effective temperature, surface gravity, and metallicity values homogeneously derived.

Keywords

stars: distancesstars: fundamental parametersHertzsprung-Russell diagram
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 494 - 495
Copyright
Copyright © International Astronomical Union 2008

References

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Moultaka, J., Ilovaisky, S. A., Prugniel, P., & Soubiran, C. 2004, PASP, 116, 693 (ELODIE)CrossRefGoogle Scholar
Morossi, C., Franchini, M., Di Marcantonio, P., & Malagnini, M. L. 2008, this volume p. 504Google Scholar
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