Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....98..418l&link_type=abstract
Astronomy and Astrophysics, vol. 98, no. 2, May 1981, p. 418-421. Research supported by the Comision Nacional de Investigacion d
Astronomy and Astrophysics
Astrophysics
5
Early Stars, Near Ultraviolet Radiation, Red Shift, Stellar Rotation, Stellar Spectra, Ultraviolet Spectra, B Stars, Color, Correlation Coefficients, Interstellar Extinction, Late Stars, O Stars, Stellar Atmospheres
Scientific paper
It is noted that rapid rotation introduces an intrinsic reddening, which is significant for the rapidly rotating Be stars, in particular the B0e. In fact, a correlation is found between E(B-V) and vsini for B0 and B4 stars. Neglecting this effect produces an overestimate of interstellar reddening which in turn yields an overcorrection of ultraviolet fluxes resulting in a spurious ultraviolet excess. Taking the problem backwards, a (B-V) color excess is calculated from ultraviolet colors which are unaffected by rotation. This excess turns out to be singificantly smaller than the observed E(B-V) for B0e stars but small for later-type stars.
Llorente de Andres F.
López Arroyo M.
Morales Carmen
Munoz Freddy
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