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Multifrequency observations of the BL Lacertae object 0735+178In each of the present four simultaneous spectra covering the radio-through-X-ray regimes, the IR-UV synchrotron continuum dominates the total observed power and presumably becomes opague between 10 to the 11th and 10 to the 13th Hz. Nonsimultaneous observations were also conducted, over a longer time period, in order to study long- and short-term variability at X-ray, optical, and radio frequencies. These data indicate that the rapid and dramatic variations evident at IR and optical wavelengths are absent at radio and X-ray frequencies, supporting a view of IR-UV flux emanation from a small region, while the X-rays are produced by the inverse Compton process in the radio-emitting region. Particles, photons and magnetic field may not be far from equipartition in this region. Theoretical suggestions are developed regarding the radial behavior of the electron density and magnetic field.
Document ID
19840039121
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Bregman, J. N.
(New York Univ. New York, NY, United States)
Glassgold, A. E.
(New York Univ. New York, NY, United States)
Huggins, P. J.
(New York University New York, NY, United States)
Aller, H. D.
(New York Univ. New York, NY, United States)
Aller, M. F.
(New York Univ. New York, NY, United States)
Hodge, P. E.
(Radio Observatory Ann Arbor, MI, United States)
Rieke, G. H.
(New York Univ. New York, NY, United States)
Lebofsky, M. J.
(Steward Observatory Tucson, AZ, United States)
Pollock, J. T.
(New York Univ. New York, NY, United States)
Pica, A. J.
(Rosemary Hill Observatory Gainesville, FL, United States)
Date Acquired
August 12, 2013
Publication Date
January 15, 1984
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 276
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
84A21908
Funding Number(s)
CONTRACT_GRANT: NSF AST-82-03926
Distribution Limits
Public
Copyright
Other

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