RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
PDF
PDF

Keywords

H II Regions: High-Velocity Gas
H II Regions: Line Profiles
H II Regions: Spiral Galaxies

How to Cite

Very high velocity gas in giant extragalactic H II regions. (1990). Revista Mexicana De Astronomía Y Astrofísica, 21(1), 231. https://astronomia.unam.mx/journals/rmxaa/article/view/1990rmxaa..21..231c

Abstract

As part of a systematic survey for the search of high velocity gas in giant extragalactic H II regions, the authors have observed the five largest and brightest H II regions in M101. They have found two types of peculiar emission profiles: (1) a broadening of the Hα emission line at low intensity, in excess of the values expected for the typical gaussian profile and (2) a very broad component (FWZI > 3000 km s-1) for Hα + the [N II] doublet, located at NGC 5471.
...