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Narrowband imaging and spectroscopy close to the nucleus of the Seyfert galaxy NGC 7682Keel's (1985) report of a jet-like optical feature emanating from the nucleus of NGC 7682 is investigated. Deep CCD images of NGC 7682 were taken with narrowband filters centered on the redshifted wavelength of H-alpha + forbidden N II and on a nearby continuum region. The continuum-subtracted line images show no evidence of the jet feature, although numerous H II regions appear clearly, both close to the nucleus and in the extended spiral arm structure. Spectra were taken at various dispersions and position angles, including the supposed position angle of the jet. These data were used to obtain background-subtracted spectra at the precise location of the jet. No excess emission was detected above the background-galaxy contribution. The highest-resolution spectra were used to determine the redshift of the galaxy to high precision.
Document ID
19870053181
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Brodie, Jean
(California Univ. Berkeley, CA, United States)
Willick, Jeffrey A.
(California Univ. Berkeley, CA, United States)
Bowyer, Stuart
(California, University Berkeley, United States)
Henry, J. Patrick
(Hawaii, University Honolulu, United States)
Date Acquired
August 13, 2013
Publication Date
May 1, 1987
Publication Information
Publication: Astronomical Journal
Volume: 93
ISSN: 0004-6256
Subject Category
Astrophysics
Accession Number
87A40455
Funding Number(s)
CONTRACT_GRANT: NAS8-32577
Distribution Limits
Public
Copyright
Other

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