Photometry of Intrinsically Luminous Stars in Galactic Fields at Longitudes l=+/-45^deg

Details Photometry of Intrinsically Luminous Stars in Galactic Fields at Longitudes l=+/-45^deg Photometry of Intrinsically Luminous Stars in Galactic Fields at Longitudes l=+/-45^deg

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pasp..111.1149m&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 111, Issue 763, pp. 1149-1156.

Astronomy and Astrophysics

Astronomy

1

Galaxy: Structure, Stars: Early-Type, Stars: Wolf-Rayet

Scientific paper

We present UBV (and some Hβ) photoelectric photometry of some 100 luminous star candidates in each of two 10 deg-15 deg wide longitude zones centered symmetrically relative to the Galactic center in the Milky Way at longitudes l=+/-45^deg. The southern field contains significantly more massive stars than the northern field, suggesting a real asymmetry. This accords with the remarkable lack of known Wolf-Rayet stars in the northern zone as opposed to 14 known in the southern zone. If this is not just a local fluctuation on a kiloparsec scale, it is not obviously related to the known bar in the Galaxy.

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