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The MRK 421 Multi-Wavelength Campaign: EUVE ObservationWe present the extreme ultraviolet (EUV) spectrum and light curve of the BL Lacertae object Markarian 421, obtained with the Extreme Ultraviolet Explorer (EUVE). The EUVE observation was part of a large multiwavelength campaign covering radio to gamma-ray energies. Preliminary analysis of the EUV spectrum indicates a smooth continuum in the 75-115 A range with no evidence of absorption features. The light curve shows variability of up to factors of two on a time-scale of a few days.
Document ID
19990036506
Acquisition Source
Goddard Space Flight Center
Document Type
Other
Authors
Fruscione, Antonella (California Univ. Berkeley, CA United States)
Bruhweiler, F. (Catholic Univ. of America Washington, DC United States)
Cheng, K. P. (Catholic Univ. of America Washington, DC United States)
Hall, C. R. (Catholic Univ. of America Washington, DC United States)
Kafatos, M. (George Mason Univ. Fairfax, VA United States)
Ramos, E. (George Mason Univ. Fairfax, VA United States)
Kondo, Y. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1995
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: NAS5-29298
CONTRACT_GRANT: NAG5-2360
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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