BeppoSAX observations of the three Gamma-ray pulsars PSR B0656+14, PSR B1055-52 and PSR B1706-44

Abstract

We report the results of the observations of the three gamma-ray pulsars PSR B0656+14, PSR B1055-52 and PSR B1706-44 performed with BeppoSAX. We detected a pulsed emission only for PSR B1055-52: in the range 0.1-6.5 keV the pulse profile is sinusoidal and the statistical significance is 4.5 sigma. The pulsed fraction was estimated 0.64+/-0.17. This pulsation was detected also at energies greater than 2.5 keV suggesting either a non-thermal origin or a quite high temperature region on the neutron star surface. Spectral analysis showed that only the X-ray spectrum of PSR B1706-44 can be fitted by a single power-law component, while that of PSR B1055-52 requires also a blackbody component (kT = 0.075 keV) and that of PSR B0656+14 two blackbody components (kT_1 = 0.059, kT_2 = 0.12 keV).

arXiv comment8 pages, 5 figures. Accepted for publication in A&A

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• Gamma Radiation from PSR B1055-52
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Cited by in corpus (10)

• Thermal structure and cooling of superfluid neutron stars with accreted magnetized envelopes
• The distance and radius of the neutron star PSR B0656+14
• The X-ray Structure of the Pulsar Bow Shock G189.22+2.90 in the Supernova Remnant IC 443
• XMM-Newton Observations of PSR B1706-44
• Optical-uv spectrum and proper motion of the middle-aged pulsar b1055-52
• The relative and absolute timing accuracy of the EPIC-pn camera on XMM-Newton, from X-ray pulsations of the Crab and other pulsars
• Chandra observations of the elusive pulsar wind nebula around PSR B0656+14
• Spectral characterization of the non-thermal X-ray emission of gamma-ray pulsars
• Search for TeV emission from the region around PSR B1706-44 with the H.E.S.S. experiment
• PSR B0656+14: the unified outlook from the infrared to X-rays