A comparison of photometric and kinematic distances for southern H II regions

Details A comparison of photometric and kinematic distances for southern H II regions A comparison of photometric and kinematic distances for southern H II regions

Dec 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....45..405v&link_type=abstract

Astronomy and Astrophysics, vol. 45, no. 2, Dec. 1975, p. 405-409.

Astronomy and Astrophysics

Astrophysics

22

Astronomical Photometry, Distance, H Ii Regions, Stellar Spectrophotometry, Astronomical Catalogs, B Stars, Electrophotometry, H Beta Line, Hydrogen Ions, Kinematics, O Stars, Tables (Data), Ubv Spectra

Scientific paper

Candidates for exciting stars have been examined in 49 southern H II regions by means of photoelectric UBV and H-beta photometry. The photometric distances of the related stars are compared with the kinematic distances of the corresponding H II regions as given by Georgelin et al. (1973). In the range l 250 deg through 360 deg to 30 deg there are no systematic differences. Only a region in Puppis at l about 230 deg yields photometric distances which systematically exceed the kinematic ones. It is shown that an abnormal R-value cannot account for the observed discrepancy in this region.

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