The calibration of Stromgren photometry for A, F and early G supergiants. III - The A and early F supergiants

Details The calibration of Stromgren photometry for A, F and early G supergiants. III - The A and early F supergiants The calibration of Stromgren photometry for A, F and early G supergiants. III - The A and early F supergiants

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...265..704g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 265, no. 2, p. 704-710.

Astronomy and Astrophysics

Astrophysics

12

A Stars, Calibrating, F Stars, G Stars, Stellar Spectrophotometry, Supergiant Stars, Stellar Color, Stellar Luminosity, Stellar Temperature

Scientific paper

This paper deals with the calibration of Stromgren photometry for the A and early F supergiants. We derive a gravity parameter which can be used to separate photometrically supergiants of different luminosity classes. It is used in conjunction to derive a simple calibration which gives the intrinsic color, of the supergiant. This calibration is tested and compared with other reddening estimates for A and F supergiants in the literature. Finally, we derive a semiempirical effective temperature calibration for the A and F supergiants.

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