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ROSAT High Resolution Imager observations of PSR 0656 + 14We have used the High Resolution Imager (HRI) on ROSAT to image PSR 0656 + 14 at soft X-ray energies. With a net observing time of 10,326 s, we obtained a source event rate of 0.382 +/- 0.007 counts/s. Comparing the radial distribution of these counts between 15 and 100 arcsec to an empirically derived point spread function for HRI soft sources, we find no evidence of a spatially extended X-ray nebula to a limiting surface brightness of 1.67 x 10 exp -6 counts/s/sq arcsec, corresponding to a limit of 14 percent of the observed flux out to a radius of 100 arcsec. The X-ray emission of the pulsar is pulsed at the 0.385 s period of the radio pulsar, with a pulse fraction of 7 +/- 2.2 percent and a FWHM of 0.10 s. We discuss some models of the X-ray radiation of PSR 0656 + 14 compatible with both the HRI and PSPC results.
Document ID
19930072095
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Anderson, S. B.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cordova, F. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pavlov, G. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Robinson, C. R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Thompson, R. J., Jr.
(Pennsylvania State Univ. University Park, United States)
Date Acquired
August 16, 2013
Publication Date
September 10, 1993
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 414
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A56092
Funding Number(s)
CONTRACT_GRANT: NAG5-1763
Distribution Limits
Public
Copyright
Other

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