Published November 15, 1973 | Version v1
Journal article Metadata-only

A large carbon monoxide cloud in Orion

Creators

  • 1. Goddard Institute for Space Studies, New York City

Description

Carbon monoxide line emission at X = 2.6 mm has been observed over an area of 1/2 X 4 in L1630, a diffuse dark nebula bridging NGC 2024 and the reflection nebula NGC 2068. The absence of a 21-cm counterpart to this region of high visual extinction suggests that L1630 is mainly molecular hydrogen. The H2 mass is estimated from the carbon monoxide observations to be 2.S X i0 M 1 X i0 M , a significant fraction of the total mass of stars and gas within the boundaries of the I Ori assodation. Subject headings:molecules, interstellar - nebulae

Additional details

Additional titles

Augmented title (English)
High visual extinction

Identifiers

DOI
10.1086/181347;

Publishing Information

Journal Title
The Astrophysical Journal
Journal Volume
186
Journal Issue
1
Series
Astrophys. J., Lett.
Journal Page Range
L13
ISSN
0004-637X

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
5147568
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
BRIGHTNESS; CARBON MONOXIDE; COSMIC RADIO SOURCES; COSMOCHEMISTRY; HYDROGEN; H1 REGIONS; MASS; NEBULAE; RADIOWAVE RADIATION; TEMPERATURE DEPENDENCE
Descriptors DEC
CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMISTRY; ELECTROMAGNETIC RADIATION; ELEMENTS; NONMETALS; OPTICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS

Optional Information

Notes
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