Determination of the Temperatures of Selected ISO Flux Calibration Stars Using the Infrared Flux Method

Details Determination of the Temperatures of Selected ISO Flux Calibration Stars Using the Infrared Flux Method Determination of the Temperatures of Selected ISO Flux Calibration Stars Using the Infrared Flux Method

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997stin...9869702b&link_type=abstract

Technical Report, OUAST/98/1 Astrophysics, Nuclear Physics Lab.

Physics

Nuclear Physics

Stellar Temperature, Temperature Measurement, Data Bases, Regression Coefficients, Parallax, Metallicity, Interstellar Extinction, Photometry, Infrared Space Observatory (Iso), Narrowband, Infrared Radiation

Scientific paper

Effective temperatures for 420 stars with spectral types between A0 and K3, and luminosity classes between II and V, selected for a flux calibration of the Infrared Space Observatory, ISO, have been determined using the Infrared Flux Method (IRFM). The determinations are based on narrow and wide band photometric data obtained for this purpose, and take into account previously published narrow-band measures of temperature. Regression coefficients are given for relations between the determined temperatures and the photometric parameters (B2-V1), (b-y) and (B-V), corrected for interstellar extinction through use of Hipparcos parallaxes. A correction for the effect of metallicity on the determination of integrated flux is proposed. The importance of a knowledge of metallicity in the representation of derived temperatures for Class V, IV and III stars by empirical functions is discussed and formulae given. An estimate is given for the probable error of each temperature determination.

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