Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88..527f&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 88, April 1983, p. 527-531. Research supported by the Natural Sciences and Engineeri
Astronomy and Astrophysics
Astronomy
13
B Stars, H Alpha Line, Stellar Spectra, Variable Stars, High Resolution, Radial Velocity, Shell Stars, Spectral Line Width
Scientific paper
High-resolution observations of the H-alpha emission line in the two Be stars Gamma Cas and Pi Aqr are presented. A total of 16 and 19 independent observations, respectively, were obtained for these two stars over a two-day period. In contrast to some previous reports, no changes in equivalent width, radial velocity, and line profile were detected in either star over time scales of several hours. The upper limits on these variations may be the most stringent available to date for these two stars.
Fontaine Gérard
Lacombe P.
Wesemael François
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