Bibcode
DOI
Esteban, César; López-Martín, Luis; López-Sánchez, Ángel R.; Cedrés, Bernabé; García-Rojas, Jorge
Referencia bibliográfica
The Publications of the Astronomical Society of the Pacific, Volume 116, Issue 822, pp. 723-728.
Advertised on:
8
2004
Número de citas
1
Número de citas referidas
1
Descripción
We present new observations of IRAS 04000+5052, a Galactic H II region
that is associated with a young stellar cluster and is possibly located
in the Perseus arm. We have found that contrary to previous claims, this
object is not a compact metal-poor H II region. The electron density and
chemical composition of the nebula are similar to those of normal H II
regions of the Galactic disk. The radial velocity of the ionized gas
coincides with that obtained from CO observations, indicating that the
nebula is associated with a molecular cloud. Probably, the ionizing
source of the H II region is a Herbig Be star of spectral type B0.5.
Based on observations made with telescopes operated on the island of La
Palma by the Isaac Newton Group of Telescopes and Nordic Optical
Telescope at the Spanish observatory of Roque de Los Muchachos of the
Instituto de Astrofísica de Canarias.