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

Journal Article · Sun Apr 01 04:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/168557· OSTI ID:7041085

Lester, D F; Gaffney, N; Carr, J S; Joy, M ^[1]

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

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.

• OSTI ID: 7041085
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 352; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
COSMIC GASES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
FLUIDS
GALAXIES
GALAXY NUCLEI
GASES
H2 REGIONS
INFRARED RADIATION
INFRARED SPECTRA
INTERSTELLAR SPACE
LYMAN LINES
MATHEMATICAL MODELS
MOLECULES
NEAR INFRARED RADIATION
RADIATIONS
SPACE
SPECTRA
SPECTROSCOPY
STAR EVOLUTION