Centrum Astronomii
Wydział Fizyki, Astronomii i Informatyki Stosowanej, Uniwersytet Mikołaja Kopernika

Interstellar extinction observed in spectra of Be stars.

Wegner W., Papaj J., Krełowski J.

Evident differences between extinction laws observed in spectra of "normal" B type and Be stars are shown. The latter do not contain in many cases the prominent feature of the extinction curve - the 2200 Å bump. The results are derived both from multicolour (including the ultraviolet ANS) photometry and from TD-1 UV spectra. It is suggested that the observed peculiarities originiate in circumstellar shells which add their contributions to the interstellar reddening.

Słowa kluczowe
Be Stars: Interstellar Extinction, B Stars: Interstellar Extinction