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The UV variability of the Seyfert 1: Galaxies 3 Zw 2 and Markarian 509The two galaxies differ markedly in their radio properties. III Zw 2 is a strong source with a highly variable compact component while MK 509 is a very weak source. Both galaxies show significant variations in X-rays and MK 509 has shown variations at optical wavelengths as well. Simultaneous observations were made in the ultraviolet, optical and infrared in order to examine three fundamental aspects of the origin of the continuum emission: are these thermal and nonthermal components; how large is the emitting region; and does the UV flux originate in the same region responsible for the optical, IR, radio and/or X-ray continuum emission?
Document ID
19810017440
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Huchra, J. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Geller, M. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Merton, D. (Anglo-Australian Observatory)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Publication Information
Publication: NASA. Goddard Space Flight Center The Universe at Ultraviolet Wavelengths: The First Two Yrs. of Intern. Ultraviolet Explorer
Subject Category
Astrophysics
Accession Number
81N25976
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19810017357Collected WorksThe Universe at Ultraviolet Wavelengths: The first two years of International Ultraviolet Explorer19810017357Collected WorksThe Universe at Ultraviolet Wavelengths: The first two years of International Ultraviolet Explorer
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