Photometric studies of three Be stars

Details Photometric studies of three Be stars Photometric studies of three Be stars

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981acaps...1..122g&link_type=abstract

(Acta Astrophysica Sinica, vol. 1, no. 2, 1981, p. 122-130.) Chinese Astronomy and Astrophysics, vol. 5, Sept. 1981, p. 349-356.

Physics

Optics

B Stars, Balmer Series, Early Stars, Emission Spectra, Stellar Envelopes, Stellar Spectrophotometry, Cassegrain Optics, Electron Density (Concentration), Hydrogen, Spectral Energy Distribution, Spectral Line Width, Spectrographs, Stellar Evolution

Scientific paper

From December 1978 to May 1979, spectrographic observations were made of Phi Per, Zeta Tau and Kappa Dra using a 60/90 Schmidt Cassegrain grating spectrograph. Values of electron density, rotational speed and V/R variation have been obtained and a comparison between Zeta Tau and the supergiant Beta Ori carried out. It is found that, over this observed period, Phi Per showed clear shell activities, Zeta Tau was in a relatively calm phase, its shell slowly expanding, while Kappa Dra had all the signs of a classical Be star.

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