ROSAT observations of the Vela pulsar

Authors
Seward, FD Alpar, MA Flanagan, C Kiziloglu, U Markwardt, C McCulloch, P Ogelman, H
Citation
Fd. Seward et al., ROSAT observations of the Vela pulsar, ASTROPHYS J, 536(2), 2000, pp. 948-953
Citations number
28
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
536
Issue
2
Year of publication
2000
Part
1
Pages
948 - 953
Database
ISI
SICI code
0004-637X(20000620)536:2<948:ROOTVP>2.0.ZU;2-1
Abstract
The ROSAT HRI was used to monitor X-ray emission from the Vela pulsar. Six observations span 2.5 yr and three glitches. The summed data yield a determ ination of the pulse shape, and X-ray emission from the pulsar is found to be 12% pulsed with one broad and two narrow peaks. One observation occurred 15 days after a large glitch. No change in pulse structure was observed, a nd any change in X-ray luminosity, if present, was less than 3%. Implicatio ns for neutron star structure are discussed.