ROSAT high resolution imager observations of PSR 0656+14

S. B. Anderson; F. A. Córdova; G. G. Pavlov; C. R. Robinson; R. J. Thompson

doi:10.1086/173128

ROSAT high resolution imager observations of PSR 0656+14

S. B. Anderson, F. A. Córdova, G. G. Pavlov, C. R. Robinson, R. J. Thompson

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Abstract

We have used the High Resolution Imager (HRI) on ROSAT to image PSR 0656+14 at soft X-ray energies (0.15-2 keV). With a net observing time of 10,326 s, we obtained a source event rate of 0.382 ± 0.007 counts s^-1. Comparing the radial distribution of these counts between 15″ and 100″ 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 × 10^-6 counts s^-1 arcsec^-2, corresponding to a limit of 14% of the observed flux out to a radius of 100″. 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%, 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.

Original language	English (US)
Pages (from-to)	867-871
Number of pages	5
Journal	Astrophysical Journal
Volume	414
Issue number	2
DOIs	https://doi.org/10.1086/173128
State	Published - Sep 10 1993

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/173128

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@article{391627ee68bd460bbe3ce5bdbba1a085,

title = "ROSAT high resolution imager observations of PSR 0656+14",

abstract = "We have used the High Resolution Imager (HRI) on ROSAT to image PSR 0656+14 at soft X-ray energies (0.15-2 keV). With a net observing time of 10,326 s, we obtained a source event rate of 0.382 ± 0.007 counts s-1. Comparing the radial distribution of these counts between 15″ and 100″ 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 × 10-6 counts s-1 arcsec-2, corresponding to a limit of 14% of the observed flux out to a radius of 100″. 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%, 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.",

author = "Anderson, {S. B.} and C{\'o}rdova, {F. A.} and Pavlov, {G. G.} and Robinson, {C. R.} and Thompson, {R. J.}",

year = "1993",

month = sep,

day = "10",

doi = "10.1086/173128",

language = "English (US)",

volume = "414",

pages = "867--871",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

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TY - JOUR

T1 - ROSAT high resolution imager observations of PSR 0656+14

AU - Anderson, S. B.

AU - Córdova, F. A.

AU - Pavlov, G. G.

AU - Robinson, C. R.

AU - Thompson, R. J.

PY - 1993/9/10

Y1 - 1993/9/10

N2 - We have used the High Resolution Imager (HRI) on ROSAT to image PSR 0656+14 at soft X-ray energies (0.15-2 keV). With a net observing time of 10,326 s, we obtained a source event rate of 0.382 ± 0.007 counts s-1. Comparing the radial distribution of these counts between 15″ and 100″ 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 × 10-6 counts s-1 arcsec-2, corresponding to a limit of 14% of the observed flux out to a radius of 100″. 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%, 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.

AB - We have used the High Resolution Imager (HRI) on ROSAT to image PSR 0656+14 at soft X-ray energies (0.15-2 keV). With a net observing time of 10,326 s, we obtained a source event rate of 0.382 ± 0.007 counts s-1. Comparing the radial distribution of these counts between 15″ and 100″ 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 × 10-6 counts s-1 arcsec-2, corresponding to a limit of 14% of the observed flux out to a radius of 100″. 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%, 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.

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U2 - 10.1086/173128

DO - 10.1086/173128

M3 - Article

AN - SCOPUS:12044254888

SN - 0004-637X

VL - 414

SP - 867

EP - 871

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

ER -

ROSAT high resolution imager observations of PSR 0656+14

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