Forbidden O II studies of galactic planetary nebulae and extragalactic H II complexes

Details Forbidden O II studies of galactic planetary nebulae and extragalactic H II complexes Forbidden O II studies of galactic planetary nebulae and extragalactic H II complexes

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...283..158o&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 283, Aug. 1, 1984, p. 158-164. Research supported by the Rice University.

Astronomy and Astrophysics

Astrophysics

20

Astronomical Spectroscopy, Oxygen Spectra, Planetary Nebulae, Spiral Galaxies, Astrometry, Astronomical Models, Electron Density (Concentration), Forbidden Bands, Gas Density, H Ii Regions, Spectrum Analysis

Scientific paper

The 3727-A doublet ratio of forbidden O II was observed in five planetary nebulae and nine extragalactic groupings of H II regions (H II Complexes). The theoretical relation between this doublet ratio and nebular density was rederived using the most up-to-date atomic parameters, permitting columnar densities to be determined for all objects. The structure of extragalactic H II Complexes is discussed, and a preferred model advanced. A new method of distance determination for extragalactic systems is proposed and evaluated in the context of the presently available data.

Affiliated with

Also associated with

No associations

Rating

Forbidden O II studies of galactic planetary nebulae and extragalactic H II complexes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Forbidden O II studies of galactic planetary nebulae and extragalactic H II complexes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forbidden O II studies of galactic planetary nebulae and extragalactic H II complexes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1674241