On the nebulosities associated with the extreme Of star HD 148937

Details On the nebulosities associated with the extreme Of star HD 148937 On the nebulosities associated with the extreme Of star HD 148937

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251..126b&link_type=abstract

Astrophysical Journal, Part 1, vol. 251, Dec. 1, 1981, p. 126-132.

Astronomy and Astrophysics

Astrophysics

22

Hydrogen Ions, Interstellar Matter, Nebulae, O Stars, Stellar Spectrophotometry, Astronomical Catalogs, Astronomical Models, Bubbles, Far Ultraviolet Radiation, H Ii Regions, Main Sequence Stars, Self Consistent Fields, Ultraviolet Spectroscopy

Scientific paper

In order to understand the origin of the extreme Of star HD 148937, a study was undertaken of the interrelations between (1) its associated nebulae, including NGC 6164-5, (2) a 2 deg diameter H II region, (3) an outer dust shell, and (4) a newly identified interstellar bubble. A self-consistent model describing the interaction of HD 148937 with the surrounding interstellar bubble-H II region complex is assembled from far-UV spectroscopy of the central star, narrow-bandpass emission-line photography, and broad-band survey plates. HD 148937 is found to be less than 350,000 years old, and constraints on its luminosity suggest that it is still in the pre-main sequence contraction phase.

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