Intrinsic ultraviolet (912-3200 A) energy distribution of OB stars

Details Intrinsic ultraviolet (912-3200 A) energy distribution of OB stars Intrinsic ultraviolet (912-3200 A) energy distribution of OB stars

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...339..474l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 339, April 1, 1989, p. 474-487. Research supported by CNR.

Astronomy and Astrophysics

Astrophysics

48

Blue Stars, Early Stars, O Stars, Spectral Energy Distribution, Ultraviolet Spectra, Iue, Main Sequence Stars, Stellar Color, Stellar Spectra

Scientific paper

Low-dispersion 500-3200-A spectra of 20 OB stars are used to derive three individual extinction curves in the wavelength range 912-1200 A. The dependence of the intrinsic UV fluxes of OB stars on both spectral type and luminosity is demonstrated. UV color indices are proposed. The results confirm the previous finding that O star spectra are not significantly bluer than the spectrum of the B0 main-sequence star Upsilon Ori.

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