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Unpulsed X-rays from pulsarsPreliminary results of several programs to detect thermal X-ray emission from isolated neutron stars are presented. Results of Einstein pulsar surveys indicate that either the majority of supernovas which leave remnants do not produce neutron stars, or the cooling calculations are in need of substantial revision. When appropriate relativistic thermodynamics and updated high energy nuclear physics are included, the new calculations predict significantly lower temperatures for standard neutron star equations of state. X-ray results give strong evidence that five of the seven historical remnants and a large majority of the other remnants of less than 1000 yr do not contain radio pulsars. A survey of known radio pulsars is also presented, which is designed to test the heating mechanisms required by various theories of pulsar emission and neutron star structure, and consists of a survey of all known pulsars within 300 pc.
Document ID
19820049428
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Helfand, D. J.
(Columbia University New York, NY, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Astrophysics
Meeting Information
Meeting: Pulsars: 13 years of research on neutron stars
Location: Bonn
Start Date: August 26, 1980
End Date: August 29, 1980
Accession Number
82A32963
Funding Number(s)
CONTRACT_GRANT: NAS8-30753
Distribution Limits
Public
Copyright
Other

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