Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26as...75..311d&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 75, no. 2, Oct. 1988, p. 311-316. DFG-supported research.
Astronomy and Astrophysics
Astrophysics
2
B Stars, Early Stars, Radial Velocity, Stellar Envelopes, Absorption Spectra, Balmer Series, H Alpha Line, Metallicity
Scientific paper
Radial velocity measurements of 88 Her were obtained between 1977 and 1987, when the shell spectrum first developed and then subsequently weakened. The radial velocity variations of the blue Balmer shell lines continued without any detectable change of the 86.72-day period, and the radial velocity of the H-alpha shell line showed similar behavior. It is found that the V/R at H-alpha tends towards values of less than 1 when the blue Balmer lines are more negative than the gamma velocity, and that the Fe II shell lines follow the same periodic behavior as the Balmer shell lines.
Arsenijevic J.
Bourdonneau B.
Doazan Vera
Duemmler Rudolf
Kubicela A.
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