Density studies on giant extragalactic H II regions

Details Density studies on giant extragalactic H II regions Density studies on giant extragalactic H II regions

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...260..370c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 260, no. 1-2, p. 370-380.

Astronomy and Astrophysics

Astrophysics

26

Electron Density Profiles, Giant Stars, H Ii Regions, Interstellar Matter, H Alpha Line, Ionized Gases, Spatial Distribution

Scientific paper

We report the results of a systematic study on the spatial variation of the electron density in a selected group of bright giant H II complexes in the galaxies M 101, M 51, and NGC 6822. Density values for the ionized gas of the regions have been obtained from the forbidden S II 6717/6731 ratio, using long-slit spectrophotometry at high spectral and spatial resolution. Our study shows evidence that some of the regions present gradients in the distribution of the ionized gas, the brightest zones being associated with the maximum electron density values. For those cases where density variation is defined, different models that describe the internal gas density distribution have been considered and compared with the observations. We conclude that more realistic theoretical models of nebulae should take into account the internal density gradients within the regions.

Affiliated with

Also associated with

No associations

Rating

Density studies on giant extragalactic H II regions 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 Density studies on giant extragalactic H II regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density studies on giant extragalactic H II regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1203162