A short review is given of the most interesting observational data for stars with anomalous helium lines in the spectra Bp(He). Lists are given of all known stars with rich helium lines (He-r) and stars with weak helium lines (He-w). On the basis of literature data some peculiarities are considered. Probably, the field (He-r) stars and the stars in clusters, and also the (He-w) stars in clusters are concentrated along the galactic equator. The distribution of the stars with anomalous helium lines along the galactic longitude is even except for their concentration in clusters.
Astrofizicheskie Issledovaniia Izvestiya Spetsial'noj Astrofizicheskoj Observatorii
- Pub Date:
- Bp Stars:Helium Lines