Constraining compactness and magnetic field geometry of X-ray pulsars using pulse profile statistics

Details Constraining compactness and magnetic field geometry of X-ray pulsars using pulse profile statistics Constraining compactness and magnetic field geometry of X-ray pulsars using pulse profile statistics

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1248..131a&link_type=abstract

X-RAY ASTRONOMY 2009; PRESENT STATUS, MULTI-WAVELENGTH APPROACH AND FUTURE PERSPECTIVES: Proceedings of the International Confer

Other

X-Ray Pulsars, Neutron Stars, X-Ray Detection, Magnetic Fields, Pulsars, Neutron Stars, X- And Gamma-Ray Sources, Mirrors, Gratings, And Detectors, Gravitational Radiation, Magnetic Fields, And Other Observations

Scientific paper

We use the statistics of 131 X-ray pulsar light curves in order to constrain the neutron star compactness and the inclination of the magnetic dipole. The X-ray pulse profiles are classified according to the number of pulses seen during one period, dividing them into two classes, single- and double-peaked. The relative fraction of pulsars in these classes is compared with the probabilities predicted by a theoretical model for different types of pencil-beam patterns. Our results show that a statistic of pulse profiles does not constrain compactness of the neutron stars. In contrast to the previous claims [1], the data do not require the magnetic inclination to be confined in a narrow interval but instead the magnetic dipole can have arbitrary inclinations to the rotational axis. The observed fractions of different types of light curves can be explained by taking into account the X-ray detector sensitivity (i.e. detection threshold for weak pulses), which decreases the fraction of the observed double-peaked light curves.

Affiliated with

Also associated with

No associations

Rating

Constraining compactness and magnetic field geometry of X-ray pulsars using pulse profile statistics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Constraining compactness and magnetic field geometry of X-ray pulsars using pulse profile statistics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraining compactness and magnetic field geometry of X-ray pulsars using pulse profile statistics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1644292