Published July 15, 1976 | Version v1
Journal article Metadata-only

Detection of molecular hydrogen quadrupole emission in the Orion nebula

Creators

  • 1. Department of Astronomy and the Lunar and Planetary Laboratory, University of Arizona

Description

Seven lines of the 1--0 vibration-rotation quadrupole spectrum of H2 were detected around the Becklin-Neugebauer (BN) object and in a part of the Kleinmann-Low nebula 10'' south of BN. The surface brightness of the S (1) line was found to be 3.0 +- 0.5 x 10/sup -3/ ergs cm/sup -2/ sr/sup -1/ for the region around BN. Analysis showed that a thermal excitaton model gives a good fit to the observed line intensities with a temperature of approximately 2000 K. A column density for H2 of 9.4 +- 1.5 x 10/sup 18/ cm/sup -2/ was derived with this temperature

Additional details

Identifiers

DOI
10.1086/182195;

Publishing Information

Journal Title
The Astrophysical Journal
Journal Volume
207
Journal Issue
2
Series
Astrophys. J., Lett.
Journal Page Range
L129
ISSN
0004-637X

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
8285135
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
COSMIC GASES; HYDROGEN; INFRARED SPECTRA; INTERSTELLAR GRAINS; INTERSTELLAR SPACE; NEBULAE; QUADRUPOLES; ROTATIONAL STATES; SPECTRAL DENSITY; VIBRATIONAL STATES
Descriptors DEC
ELEMENTS; ENERGY LEVELS; EXCITED STATES; FLUIDS; FUNCTIONS; GASES; MULTIPOLES; NONMETALS; PARTICLES; SPACE; SPECTRA; SPECTRAL FUNCTIONS

Optional Information

Notes
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