Published April 1990 | Version v1
Journal article Metadata-only

A near-infrared spectroscopic study of the starburst core of M82

Creators

  • 1. NASA, Marshall Space Flight Center, Huntsville, AL (USA)
  • 2. Hawaii Univ., Honolulu (USA)
  • 3. McDonald Observatory, Austin, TX (USA)

Description

Near-IR spectroscopy of the M82 starburst core is presented, including complete J, H, and K band spectra with a resolution of 0.0035-micron for the inner 60 pc of the galaxy. Also, spatial profiles along the starburst ridge are presented for Br-gamma, molecular hydrogen, and forbidden Fe II line fluxes. Emission from shocked molecular hydrogen is detected from the core of M82. The distribution of features across the starburst disk are mapped to study the relationships between spectral diagnostics. The observations are used to test the appropriateness of single-beam, aggregate models for studying the physical conditions in starbursts. 68 refs

Additional details

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
352
Series
Astrophys. J.
Journal Page Range
544-560
ISSN
0004-637X
CODEN
ASJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21069559
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
BALMER LINES; COSMIC GASES; EMISSION SPECTRA; GALAXIES; GALAXY NUCLEI; H2 REGIONS; INFRARED RADIATION; INFRARED SPECTRA; INTERSTELLAR SPACE; LYMAN LINES; MATHEMATICAL MODELS; MOLECULES; NEAR INFRARED RADIATION; SPECTROSCOPY; STAR EVOLUTION
Descriptors DEC
COSMIC RADIO SOURCES; ELECTROMAGNETIC RADIATION; FLUIDS; GASES; RADIATIONS; SPACE; SPECTRA