IRAS 04000+5052: a not so compact, not so metal-poor H II region

César Esteban; Luis López-Martín; Ángel ́ R López-Sánchez; Bernabé Cedrés; Jorge García-Rojas

doi:10.1086/422894

IRAS 04000+5052: a not so compact, not so metal-poor H II region

César Esteban^*, Luis López-Martín, Ángel ́ R López-Sánchez, Bernabé Cedrés, Jorge García-Rojas

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	723-728
Number of pages	6
Journal	Publications of the Astronomical Society of the Pacific
Volume	116
Issue number	822
DOIs	https://doi.org/10.1086/422894
Publication status	Published - Aug 2004
Externally published	Yes

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title = "IRAS 04000+5052: a not so compact, not so metal-poor H II region",

abstract = "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.",

author = "C{\'e}sar Esteban and Luis L{\'o}pez-Mart{\'i}n and L{\'o}pez-S{\'a}nchez, {{\'A}ngel{\' } R} and Bernab{\'e} Cedr{\'e}s and Jorge Garc{\'i}a-Rojas",

year = "2004",

month = aug,

doi = "10.1086/422894",

language = "English",

volume = "116",

pages = "723--728",

journal = "Publications of the Astronomical Society of the Pacific",

issn = "0004-6280",

publisher = "University of Chicago Press",

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}

TY - JOUR

T1 - IRAS 04000+5052

T2 - a not so compact, not so metal-poor H II region

AU - Esteban, César

AU - López-Martín, Luis

AU - López-Sánchez, Ángel ́ R

AU - Cedrés, Bernabé

AU - García-Rojas, Jorge

PY - 2004/8

Y1 - 2004/8

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=4444234383&partnerID=8YFLogxK

U2 - 10.1086/422894

DO - 10.1086/422894

M3 - Article

AN - SCOPUS:4444234383

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SP - 723

EP - 728

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

SN - 0004-6280

IS - 822

ER -

IRAS 04000+5052: a not so compact, not so metal-poor H II region

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