A search for short-time-scale variations in H-alpha emission in the spectra of four bright Be stars

Details A search for short-time-scale variations in H-alpha emission in the spectra of four bright Be stars A search for short-time-scale variations in H-alpha emission in the spectra of four bright Be stars

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pasp...92..472r&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 92, Aug.-Sept. 1980, p. 472-474.

Astronomy and Astrophysics

Astronomy

6

B Stars, H Alpha Line, Stellar Spectra, Stellar Spectrophotometry, Brightness, Emission Spectra, Time Dependence

Scientific paper

Simultaneous Hα observations of four bright Be stars with a photoelectric scanner and an interference filter photometer during seven consecutive nights in May 1978 show (1) no evidence for real changes larger than about 5% in Hα emission strengths during any given night; (2) possible night-to-night changes for two of the stars, though the evidence is uncertain; and (3) definite changes on time scales of months for all four stars.

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