Bibcode
Castaneda, Hector O.; Vilchez, J. M.
Referencia bibliográfica
(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640X), vol. 171, no. 1-2, Sept. 1990, p. 203-205.
Fecha de publicación:
9
1990
Número de citas
0
Número de citas referidas
0
Descripción
The variation of the electron density with position in a selected group
of bright giant extragalactic H II regions has been studied using long
slit spectrophotometry at high spectral and spatial resolution. Density
values for the ionized gas of the regions have been obtained from the
measurement of the forbidden S II 6717, 6731 A ratio. It is concluded
that the regions are not homogeneous; the density varies with position,
with the zones of high density frequently associated to high surface
brightness.