2005A&A...436..313F


Query : 2005A&A...436..313F

2005A&A...436..313F - Astronomy and Astrophysics, volume 436, 313-316 (2005/6-2)

High-energy pulse profile of the transient X-ray pulsar SAX J2103.5+4545.

FALANGA M., DI SALVO T., BURDERI L., BONNET-BIDAUD J.M., GOLDONI P., GOLDWURM A., LAVAGETTO G., IARIA R. and ROBBA N.R.

Abstract (from CDS):

Two recent INTEGRAL papers report a timing and spectral analysis of the transient Be/X-ray pulsar SAX J2103.5+4545 at high energies (5-200keV). In this work we present for the first time a study of the pulse profile at energies above 20keV using INTEGRAL data. The spin-pulse profile shows a prominent (with a duty cycle of 14%) and broad (with a FWHM of ∼51s) peak and a secondary peak which becomes more evident above 20keV. The pulsed fraction increases with energy from ∼45% at 5-40keV to ∼80% at 40-80keV. The morphology of the pulse profile also changes as a function of energy, consistent with variations in the spectral components that are visible in the pulse phase resolved spectra. A study of the double peaked profile shows that the difference in the two peaks can be modeled by a different scattering fraction between the radiation from the two magnetic poles.

Abstract Copyright:

Journal keyword(s): binaries: close - pulsars: individual: SAX J2103.5+4545 - X-rays: binaries

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 [MA93] 1845 HXB 01 17 40.1628070528 -73 30 50.523954949 13.30 14.14 14.18   14.09 B1-3(II)e 50 0
2 NAME Cyg Complex reg 20 32 +45.0           ~ 539 0
3 GSC 03588-00834 HXB 21 03 35.7101268891 +45 45 05.568943629   15.34 14.20 13.49 12.75 B0Ve 156 0

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2021.09.16-23:41:08

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