Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....96..988s&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 96, Sept. 1988, p. 988-996.
Astronomy and Astrophysics
Astronomy
20
B Stars, O Stars, Star Distribution, Stellar Spectrophotometry, Line Of Sight, Open Clusters, Star Clusters, Stellar Luminosity
Scientific paper
Photographic BV photometry and objective-prism spectral classifications for 57 O-B5 stars in a 12.14 sq deg field centered on (l,b) = (268,0) are used to explore OB associations. The results confirm the presence of the associations Vel OB1, OB2, and OB3, and reveal the presence of a fourth association (Vel OB4) at r = 1.0 + or - 0.1 kpc with a mean E(B-v) = 1.0 + or - 0.3. It is noted that the present line of sight may be useful for studies of the distant structure of the galactic disk in this direction.
Reed Cameron B.
Slawson Robert W.
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