The intrinsic color indices of early-type stars

Details The intrinsic color indices of early-type stars The intrinsic color indices of early-type stars

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..299g&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, June-July 1979, p. 299-303.

Astronomy and Astrophysics

Astronomy

8

Color, Early Stars, Stellar Luminosity, Stellar Spectrophotometry, Dwarf Stars, Error Analysis, Giant Stars, Red Shift, Supergiant Stars

Scientific paper

A simple method for computing intrinsic color indices for stars of all luminosity classes applying the Q-method is presented. Calculations are performed on supergiants, less-luminous supergiants, giants and dwarfs, noting some systematic errors. The two main systematic errors were: (1) those produced by errors resulting from the color-color relations and (2) those caused by assuming a wrong value of x (first order coefficient in the color excess ratio). All of these errors were found to be dependent on the amount of reddening, the luminosity class, and the value of x itself. The errors due to the fitting of straight lines to the color-color relations were found to be independent of the amount of reddening and were generally small, reaching at most a 0.02 magnitude.

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