Nonradial pulsations in early spectral class stars

Details Nonradial pulsations in early spectral class stars Nonradial pulsations in early spectral class stars

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007smma.conf..316k&link_type=abstract

Spectroscopic methods in modern astrophysics. Proceedings of the conference held 13-15 September 2006, Moscow, Russia. Eds. L. M

Astronomy and Astrophysics

Astrophysics

Scientific paper

The results of the searching and analysis of the microvariability of the line profile in spectra of bright OB-stars are presented. More than 1000 spectra of δ Ori A, λ Ori A, α Cam, 19 Cep, ι Her, ρ Leo and other stars were obtained with using 1-m and 6-meter telescope of Special Astrophysical Observatory and 1.8-m telescope of Bohinsan Astronomical Observatory (Korea) were obtained. The regular line profile variability (lpv) on the time scales from hours to days, connected with the non-radial pulsations, was revealed. At the first time the quasi-regular CIIIλ5696 line profile variations in the spectra of δ Ori A was detected.

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