The correlation of multichannel and Stromgren color indices for white dwarfs

Details The correlation of multichannel and Stromgren color indices for white dwarfs The correlation of multichannel and Stromgren color indices for white dwarfs

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96...62g&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, Jan. 1984, p. 62-69.

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10

Astronomical Photometry, Stellar Spectrophotometry, White Dwarf Stars, Spectral Correlation, Stellar Color

Scientific paper

Relations between indices on the Stromgren and multichannel spectrophotometry (MCSP) systems are noted to be composition-dependent, in a study of data for 110 white dwarfs which give the relations between Stromgren (b-y) and multichannel /G-R/, on the one hand, and between Stromgren (u-b) and multichannel /U-V/, on the other. The dispersion about the mean relations is greater for stars with He-dominated atmospheres, perhaps because such trace elements as C affect the color differently. Theoretical color indices for H-atmosphere models resemble those observed, where the slope and zero point of a Stromgren, MCSP color relation is given within 10 percent.

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