The Puppis region and the last crusade for faint OB stars

Details The Puppis region and the last crusade for faint OB stars The Puppis region and the last crusade for faint OB stars

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....104..590o&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 104, no. 2, Aug. 1992, p. 590-612. Research supported by NSF and CONICET.

Astronomy and Astrophysics

Astronomy

11

B Stars, Faint Objects, O Stars, Stellar Spectrophotometry, Supergiant Stars, Milky Way Galaxy, Sky Surveys (Astronomy), Star Distribution, Ubv Spectra

Scientific paper

UBV photoelectric and photographic measurements of OB stars from a list of 397 OB stars and 5 early-type supergiants and from the Luminous Stars Survey are presented. The galactic distribution of the OB stars in the region shows concentrations around the open clusters Ruprecht 44 and Ruprecht 55, and the presence of an important grouping of young stars located far below the plane. The distribution in latitude shows that young stars in the region are not restricted to a thin sheet around the plane but are spread over negative latitudes reaching at least b = -5 deg. In longitude, the OB distribution exhibits a concentration of Ob stars in the interval 244-251 deg; this is argued to be due to the presence of the local arm extension.

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