Distribution of B5 to A5 stars at (l, b) = (253 deg, -7 deg)

Details Distribution of B5 to A5 stars at (l, b) = (253 deg, -7 deg) Distribution of B5 to A5 stars at (l, b) = (253 deg, -7 deg)

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.206..327b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 206, Jan. 15, 1984, p. 327-336. Research supported by t

Astronomy and Astrophysics

Astronomy

7

A Stars, B Stars, Early Stars, Interstellar Extinction, Star Distribution, Electrophotometry, Galaxies, Space Density, Ubv Spectra

Scientific paper

The distribution of interstellar extinction and early-type stars to A5 in the field (l, b) = (253°, -7°) has been studied to V ≡ 12 mag. The space density of B5, B8-A0 and A2-A5 stars is normal for a field outside the galactic plane. The stellar and extinction data indicate that the direction (l, b) = (253°, -7°) lies out of the matter plane of the Milky Way at least to 3 kpc, (>E(B-V)< = 9.25 mag). However, the higher extinction of Bochum 15 (4.4 kpc, >E(B-V)< = 0.5) and the absence of background galaxies suggests the possible presence of the galactic warp at -7° at distances beyond ≡5 kpc (z ≡ 0.6 kpc), as well as a total higher extinction than the maximum of E(B-V) = 0.53 for d > 10 kpc found at (l, b) = (245°, 0°).

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