Pulse shape and spectrum of PSR J0218+4232 observed with BeppoSAX
Astrophysics
2007-05-23 v1
Abstract
We present the results of a BeppoSAX observation of PSR J0218+4232 which, for the first time, provides detailed information on the pulsar's temporal and spectral emission properties in the broad band 1-10 keV. We detected X-ray pulses with a pulsed fraction of 73 +/- 12 %. The pulse profile is characterized by two peaks phase separated by 0.47 +/-0.05. The pulsed spectrum is best described by a power-law of photon index 0.61 +/- 0.32 with an unabsorbed (2-10 keV) X-ray flux of 4.1E-13 erg/cm^2/s implying a luminosity of Lx = 1.3E32 Theta (d/5.7 kpc})^2 erg/s and an X-ray efficiency of 4.8E-4 Theta (d/5.7 kpc})^2 where Theta is the solid angle spanned by the emission beam.
Keywords
Cite
@article{arxiv.astro-ph/0001355,
title = {Pulse shape and spectrum of PSR J0218+4232 observed with BeppoSAX},
author = {T. Mineo and G. Cusumano and L. Kuiper and W. Hermsen and E. Massaro and W. Becker and L. Nicastro and B. Sacco and F. Verbunt and A. G. Lyne and I. H. Stairs and S. Shibata},
journal= {arXiv preprint arXiv:astro-ph/0001355},
year = {2007}
}
Comments
8 pages, 6 figures, accepted for publication on A&A