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IUE observations of four BL Lacertae-type objectsSpectral fits to IUE observations of four BL Lacertae-type objects are presented. Combined with near-simultaneous measurements at longer wavelengths, positive spectra curvature within the infrared to ultraviolet energy range were found. It is shown that the data provide strong evidence for relativistic beaming in the sources. Lyman alpha emission and possible C IV and N V absorption features in the spectrum of 3C 371 are discussed.
Document ID
19820023307
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Worrall, D. M. (California Univ. San Diego, CA, United States)
Bruhweiler, F. C. (Computer Sciences Corp.)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Publication Information
Publication: NASA. Goddard Space Flight Center Advan. in Ultraviolet Astron.
Subject Category
Astronomy
Accession Number
82N31183
Funding Number(s)
CONTRACT_GRANT: NAG5-63
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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