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A near-infrared spectroscopic study of the starburst core of M82Near-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.
Document ID
19900041733
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Lester, D. F. (Texas Univ. Austin, TX, United States)
Gaffney, N. (Texas, University; McDonald Observatory, Austin, United States)
Carr, J. S. (Texas, University; McDonald Observatory, Austin; Hawaii, University, Honolulu, United States)
Joy, M. (NASA Marshall Space Flight Center Huntsville, AL; Texas, University; McDonald Observatory, Austin, United States)
Date Acquired
August 14, 2013
Publication Date
April 1, 1990
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 352
ISSN: 0004-637X
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF AST-84-14652
Distribution Limits
Public
Copyright
Other