Observations of H II regions around Zeta OPH and other O-B stars

Details Observations of H II regions around Zeta OPH and other O-B stars Observations of H II regions around Zeta OPH and other O-B stars

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pazh...14...60s&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 14, Jan. 1988, p. 60-64. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

3

B Stars, H Ii Regions, O Stars, Stellar Radiation, Astronomical Spectroscopy, Fabry-Perot Spectrometers, Spectral Sensitivity

Scientific paper

A Fabry-Perot spectrometer was used to measure the emission intensities in H-beta near Zeta Oph, Alpha Vir, Alpha Cam, and HD 188209. The spectrometer sensitivity is 0.2 rayleighs, the intensity measurement accuracy is 20 percent. Ionization zone boundaries are determined for Zeta Oph and Alpha Vir; the angular diameters of both regions are about 15 deg. The contour of the H II region near Zeta Oph on the level of the double background in the southwest does not close; instead, it expands again and incorporates the region associated with the B-association II Sco.

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