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Recombination spectrum and reddening in NGC 1068Measurements of the emission-line intensities of NGC 1068 have been made over the wavelength range extending from rest wavelengths equal to 1216 A to 1.875 micron. The data, plus other available emission-line data, can be explained in terms of a simple model where the emission lines are formed in an H II region, and the line ratios are consistent with those predicted by standard radiative recombination theory and reddening corresponding to 0.4 mag. The continuum flux is seen to consist of a galaxy component plus a nonstellar component which dominates the observed flux in the ultraviolet. The observed ultraviolet continuum does not show an absorption dip caused by the intertellar 2200 A feature nor does it contain enough energy to power the observed infrared flux.
Document ID
19800060787
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Neugebauer, G.
(California Inst. of Tech. Pasadena, CA, United States)
Matthews, K.
(California Inst. of Tech. Pasadena, CA, United States)
Soifer, B. T.
(California Institute of Technology Pasadena, Calif., United States)
Morton, D.
(Anglo-Australian Observatory Epping, New South Wales, Australia)
Oke, J. B.
(California Institute of Technology; Palomar Observatory Palomar Mountain, Calif., United States)
Becklin, E. E.
(Hawaii, University Honolulu, Hawaii, United States)
Daltabuit, E.
(California Inst. of Tech. Pasadena, CA, United States)
Torres-Peimbert, S.
(Universidad Nacional Autonoma de Mexico Mexico City, Mexico)
Persson, S. E.
(Mount Wilson and Las Campanas Observatories Pasadena, Calif., United States)
Smith, A. M.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 10, 2013
Publication Date
June 1, 1980
Publication Information
Publication: Astrophysical Journal
Subject Category
Astrophysics
Accession Number
80A44957
Funding Number(s)
CONTRACT_GRANT: NSG-5243
CONTRACT_GRANT: NGL-05-002-134
CONTRACT_GRANT: NSF AST-77-20516
CONTRACT_GRANT: NGL-05-002-207
Distribution Limits
Public
Copyright
Other

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