The BP stars in the Orion OB 1 association

Details The BP stars in the Orion OB 1 association The BP stars in the Orion OB 1 association

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pazh...11..502k&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 11, July 1985, p. 502-510) Soviet Astronomy Letters (ISSN 0360-0327), vol. 11, July-Aug

Astronomy and Astrophysics

Astronomy

1

B Stars, Orion Constellation, Peculiar Stars, A Stars, Color-Magnitude Diagram, Distance, Stellar Composition, Stellar Spectra

Scientific paper

For 24 Bp stars in the Ori OB 1 association, 6-m telescope spectrograms of 9-A/mm dispersion in the 3900-4900 A range yield a quantitative spectral classification, peculiarity type, effective temperature surface gravity, and rotational velocity. Although Ori OB 1 contains Bp stars with a variety of definite peculiarities, it lacks cool (10,000 K) Ap stars, probably because the late-A members have not yet reached the zero-age main sequence.

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