Discovery of a Cyclotron Resonance Scattering Feature in the X-ray Spectrum of XTE J1946+274

Details Discovery of a Cyclotron Resonance Scattering Feature in the X-ray Spectrum of XTE J1946+274 Discovery of a Cyclotron Resonance Scattering Feature in the X-ray Spectrum of XTE J1946+274

2001-12-20

arxiv.org/abs/astro-ph/0112468v1

ApJL, 563:L35-L39, 2001 December 10

Astronomy and Astrophysics

Astrophysics

Five pages including four postscript figures and two tables. Uses emulateapj5. Published in ApJ Letters: http://adsabs.harva

Scientific paper

10.1086/339017

Observations of the transient accreting pulsar XTE J1946+274 made with the Rossi X-ray Timing Explorer during the course of the 1998 September-November outburst, reveal a cyclotron resonance scattering feature (or "cyclotron line") in the hard X-ray spectrum near 35 keV. We determine a centroid energy of 36.2 +0.5/-0.7 keV, which implies a magnetic field strength of 3.1(1+z)x10^12 G, where z is the gravitational redshift of the scattering region. The optical depth, Tau = 0.33 +0.07/-0.06, and width, sigma = 3.37 +0.92/-0.75 keV, are typical of known cyclotron lines in other pulsars. This discovery makes XTE J1946+274 one of thirteen pulsars with securely detected cyclotron lines resulting in direct magnetic field measurements.

Affiliated with

Also associated with

No associations

Rating

Discovery of a Cyclotron Resonance Scattering Feature in the X-ray Spectrum of XTE J1946+274 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 Discovery of a Cyclotron Resonance Scattering Feature in the X-ray Spectrum of XTE J1946+274, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of a Cyclotron Resonance Scattering Feature in the X-ray Spectrum of XTE J1946+274 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-313705