Bibcode
Castañeda, H. O.; Vilchez, J. M.; Copetti, M. V. F.
Referencia bibliográfica
Revista Mexicana de Astronomia y Astrofisica, Vol. 21, p. 231 - 235
Fecha de publicación:
11
1990
Número de citas
1
Número de citas referidas
1
Descripción
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.