Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...201..199a&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 201, no. 2, Aug. 1988, p. 199-207. Research supported by the European Southern
Astronomy and Astrophysics
Astrophysics
34
Gas Dynamics, H Alpha Line, H Ii Regions, Intergalactic Media, Spectral Line Width, Interstellar Gas, Supersonic Speed, Turbulence Effects
Scientific paper
Investigations of relationships between diameters (or luminosities) and velocity widths of Hα line profiles in giant extragalactic H II regions (GEHR) have firmly established that these parameters are correlated. However, three independent studies on the subject disagree on the slopes of these relations. It is shown that all measurements of the velocity width of integrated Hα profiles of GEHRs are entirely consistent. Discrepancies in the relations are explained by different samples, and use of different parameters such as distances to galaxies and diameters of GEHRs. Assembling all observations of Hα velocity widths, new values of slopes and zero-points are derived for the relations between luminosities (or diameters) and velocity widths.
Arsenault Robin
ROY Jean-Rene
No associations
LandOfFree
Correlations between integrated parameters and H-alpha velocity widths in giant extragalactic H II regions - A new appraisal 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 Correlations between integrated parameters and H-alpha velocity widths in giant extragalactic H II regions - A new appraisal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlations between integrated parameters and H-alpha velocity widths in giant extragalactic H II regions - A new appraisal will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1692817