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Search for X-rays from the region of the Aries-Perseus flasherThe region containing the Perseus flasher was observed for 5.4 h with the Exosat observatory. Upper limits to a point source with a steady X-ray flux were 2 x 10 to the -12th erg/sq cm s and 6 x 10 to the 12th erg/sq cm s. Upper limits to X-ray flashes of about 1 s duration were 4 x 10 to the 9th erg/sq cm s and 7 x 10 to the -10th erg/sq cm s. In view of the growing number of negative optical observations, it appears that either the optical flashes do not have a celestial origin, or that the flasher has a transient character and turns off for extended periods of time.
Document ID
19870062993
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Lewin, Walter H. G.
(MIT Cambridge, MA, United States)
Van Paradijs, Jan
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Damen, Eugene
(Amsterdam, Universiteit Netherlands)
Jansen, Fred
(Leiden Rijksuniversiteit, Netherlands)
Mccall, Marshall L.
(David Dunlap Observatory; Toronto, University Richmond Hill, Canada)
Date Acquired
August 13, 2013
Publication Date
August 1, 1987
Publication Information
Publication: Astronomical Journal
Volume: 94
ISSN: 0004-6256
Subject Category
Astrophysics
Accession Number
87A50267
Funding Number(s)
CONTRACT_GRANT: NAG8-571
Distribution Limits
Public
Copyright
Other

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