Studies in Be-star variability. II - Analysis of published radial velocities of six bright emission-line stars

Details Studies in Be-star variability. II - Analysis of published radial velocities of six bright emission-line stars Studies in Be-star variability. II - Analysis of published radial velocities of six bright emission-line stars

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987baicz..38..283h&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 38, no. 5, 1987, p. 283-296.

Other

11

B Stars, Binary Stars, Radial Velocity, Variable Stars, Emission Spectra, Variability

Scientific paper

The published radial velocities of six emission-line stars, ο Cas, HR 1763, HR 2370, HR 2577, 7 Oph and HD 105056, are collected and analyzed. No satisfactory period could be found for the velocity variations of ο Cas and it is concluded that the observed velocity changes probably arise from the superposition of long-term and rapid velocity variations. Tentative periods are suggested for the other five stars, and it is argued that all of them can be spectroscopic binaries. However, the evidence for real periodicity is not fully conclusive in either case and new series of observations are urgently needed.

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