Bibcode
Bilir, S.; Karaali, S.; Ak, S.; Yaz, E.; Cabrera-Lavers, A.; Coşkunoğlu, K. B.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 390, Issue 4, pp. 1569-1576.
Advertised on:
11
2008
Citations
23
Refereed citations
23
Description
In this study we present the absolute magnitude calibrations of
thin-disc main-sequence stars in the optical , and in the near-infrared
. Thin-disc stars are identified by means of Padova isochrones, and
absolute magnitudes for the sample are evaluated via the newly reduced
Hipparcos data. The obtained calibrations cover a large range of
spectral types: from A0 to M4 in the optical and from A0 to M0 in the
near-infrared. Also, we discuss the effects of binary stars and evolved
stars on the absolute magnitude calibrations. The usage of these
calibrations can be extended to the estimation of galactic model
parameters for the thin disc individually, in order to compare these
parameters with the corresponding ones estimated by statistics (which
provides galactic model parameters for thin and thick discs and halo
simultaneously) to test any degeneracy between them. The calibrations
can also be used in other astrophysical researches where distance plays
an important role in that study.
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Martín
López Corredoira