Ground-Based and On-Satellite Observations of BE and B Stars

Details Ground-Based and On-Satellite Observations of BE and B Stars Ground-Based and On-Satellite Observations of BE and B Stars

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jass....5....9j&link_type=abstract

Journal of Astronomy and Space Science, vol. 5, no. 1, p. 9-18.

Astronomy and Astrophysics

Astronomy

Scientific paper

Gamma Cassiopeae has been observed at Yonsei University Observatory(YUO) for 31 nights in the period 1983-1987 and a total of 312 UBV observations(104 in each colour) was secured. Light curves of ¥ã Cas in V, B-V, and U-B have been constructed with YUO data; among them we present selected light curves of 5 different long nights. Discussed are the general photometric behaviour of ¥ã Cas, especially in connection with B-V changes, V/R variations of H¥á and H¥â, and high velocity narrow component(hvnc) exhibited in the far UV. Six spectral image sets of ¥å Per archived on IUE satellite are reduced and their line profiles in C IV and Si IV resonance lines are analyzed to find out any change, but the evidence is unlikely.

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