NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Nuclear outflow from the edge-on galaxy NGC 3628New evidence is presented for collimated outflow from a starburst nucleus in the edge-on galaxy NGC 3628. A plume of X-ray emission along the minor axis of this galaxy is suggested by the distribution of counts in the softer energy channels of the Einstein Observatory IPC. Plumes of H-alpha emission are visible in a CCD image of the southern minor axis region, at a position angle consistent with that of the X-ray plume, while extended, possibly filamentary, H-alpha emission is visible in the north. Optical spectroscopy along the northern minor axis clearly detects line emission, with line ratios of H-alpha, N II, and S II changing from those characteristic of normal H II regions near the nucleus, to a low-ionization state, consistent with shock heating, farther out. All this evidence, and the IR and radio continuum properties of this galaxy, make NGC 3628 another member of the growing class of galaxies with starburst nuclear activity and outflowing winds, to which NGC 253 and M82 already belong.
Document ID
19900048578
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Fabbiano, G.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Heckman, T.
(Maryland, University College Park; Johns Hopkins University; Space Telescope Science Institute, Baltimore, MD, United States)
Keel, W. C.
(Alabama, University Tuscaloosa, United States)
Date Acquired
August 14, 2013
Publication Date
June 1, 1990
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 355
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
90A35633
Funding Number(s)
CONTRACT_GRANT: NAS8-30751
CONTRACT_GRANT: NSF RII-86-10669
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available