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          Institute: MPI für extraterrestrische Physik     Collection: High Energy Astrophysics at MPE     Display Documents

ID: 5745.0, MPI für extraterrestrische Physik / High Energy Astrophysics at MPE
BeppoSAX observations of the three gamma-ray pulsars PSR B0656+14, PSR B1055-52 and PSR B1706-44
Authors:Mineo, T.; Massaro, E.; Cusumano, G.; Becker, W.
Date of Publication (YYYY-MM-DD):2002-09
Title of Journal:Astronomy & Astrophysics
Journal Abbrev.:Astron. Astrophys.
Issue / Number:1
Start Page:181
End Page:187
Review Status:Peer-review
Audience:Experts Only
Abstract / Description: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 4.5sigma. 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).
Free Keywords:stars : neutron; stars : pulsars : general; stars : pulsars : individual : PSR B0656+14; PSR B1055-52; PSR B1706-44; X-rays : stars
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für extraterrestrische Physik
External Affiliations:CNR, Sez Palermo, Ist Astrofis Spaziale & Fis Cosmica, Via Ugo; La Malfa 153, I-90146 Palermo, Italy; CNR, Sez Palermo, Ist Astrofis Spaziale & Fis Cosmica, I-90146 Palermo, Italy; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; CNR, Sez Roma, Ist Astrofis Spaziale & Fis Cosmica, I-00113 Rome, Italy; Max Planck Inst Extraterr Phys, D-85740 Garching, Germany
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