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Search for X-ray emission from Nova Cygni 1975A search for X-rays from Nova Cygni 1975 was carried out before, during, and after the time of optical maximum. No X-rays were detected over the spectral range 0.1-50 keV. On the basis of these results a strong upper limit of .0001 has been placed on the ratio of X-ray to optical luminosity for this nova, consistent with effective temperatures of about 10,000 K. If Nova Cygni 1975 is a virgin nova, its low mass exchange rate would imply that any associated X-ray emission would not be detectable by present techniques.
Document ID
19760049993
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hoffman, J. A.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Lewin, W. H. G.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Brecher, K.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Buff, J.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Clark, G. W.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Joss, P. C.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Matilsky, T.
(MIT Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
May 20, 1976
Publication Information
Publication: Nature
Volume: 261
Subject Category
Astronomy
Accession Number
76A32959
Distribution Limits
Public
Copyright
Other

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