Physical parameters from JHK flux (Gonzalez-Hernandez+, 2009)

Details Physical parameters from JHK flux (Gonzalez-Hernandez+, 2009) Physical parameters from JHK flux (Gonzalez-Hernandez+, 2009)

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ycat..34970497g&link_type=abstract

VizieR On-line Data Catalog: J/A+A/497/497. Originally published in: 2009A&A...497..497G

Astronomy and Astrophysics

Astronomy

Stars: Giant, Stars: Dwarfs, Photometry: Ubvri, Photometry: Infrared, Models: Atmosphere

Scientific paper

We have made use of the infrared flux method (IRFM) to determine effective temperatures of 555 dwarf and subgiant field stars, and 264 giant field stars. Our implementation of the IRFM uses the 2MASS photometric system as a reference system to perform all the calculations. Bolometric fluxes are derived using UBV(RI)cJHKs accurate photometric data.
In tables dwarf.dat and giants.dat, we provide the photometric data and reddenings used in this paper, stellar parameters and metallicity, bolometric fluxes and IRFM temperatures and angular diameters for all the stars in our samples.
In tables a*.dat, we provide A factors and Bx-B coefficients, necessary for the determination of bolometric fluxes, computed from the ATLAS theoretical fluxes of Castelli & Kurucz (2003, arXiv:astro-ph/0405087v1)
We used the fluxes in the ranges 3500K- A1: when using the UBV(RI)cJHKs magnitudes - A2: when using the UBVJHKs magnitudes - A3: when using the BVJHKs magnitudes - A4: when using the BV(RI)cJHKs magnitudes
In tables qr*.dat, we provide Q and R factors, necessary for the implementation of the IRFM, computed from the ATLAS theoretical fluxes of Castelli & Kurucz (2003, arXiv:astro-ph/0405087v1)
We used the fluxes in the ranges 3500KWe also provide the theoretical color V-K and the magnitudes JHKs in the 2MASS system for each atmospheric model. The theoretical magnitudes are normalized to Vega (J=H=Ks=0 in the 2MASS photometric system).
The model Flux for Vega is that computed by F. Castelli (http://wwwuser.oats.inaf.it/castelli/vega/fm05t9550g395k2odfnew.dat) and assumes parameters Teff=9550, logg=3.95, vturb=2km/s and metallicity -0.5 (see Castelli & Kurucz 1994, Cat. ).
(18 data files).

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