Dusty UCH II Regions: cloud pressures and density distributions

Details Dusty UCH II Regions: cloud pressures and density distributions Dusty UCH II Regions: cloud pressures and density distributions

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001rmxac..10...45k&link_type=abstract

The Seventh Texas-Mexico Conference on Astrophysics: Flows, Blows and Glows (Eds. William H. Lee and Silvia Torres-Peimbert) Rev

Astronomy and Astrophysics

Astrophysics

H Ii Regions, Stars: Formation

Scientific paper

We briefly discuss the effects of the ambient pressure and decreasing density gradients on the observed properties of dusty UCH II regions, and on the new class of Super-ultra-compact H II regions. Dust absorption can effectively reduce the size of the photoionized region, and density gradients can modify the spectral index of the emission. The effects of the density gradients seem also to be present in extragalactic H II regions.

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