Post-glitch RXTE-PCA observations of the Vela pulsar

Gurkan M., Baykal A., Alpar M., Ogelman H., Strohmayer T.

ASTRONOMY & ASTROPHYSICS, vol.356, no.3, pp.1136-1140, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 356 Issue: 3
  • Publication Date: 2000
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1136-1140
  • Middle East Technical University Affiliated: Yes


We report the results of analysis of observations of the Vela Pulsar by PCA on RXTE. Our data consists of two parts. The first part contains observations at 1, 4, and 9 days after the glitch in 1996 and has 27000 sec, total exposure time. The second part of observations were performed three months after this glitch and have a total exposure time of 93000 sec. We found pulsations in both sets. The observed spectrum is a power-law with no apparent change in flux or count rate. The theoretical expectations of increase in flux due to internal heating after a glitch are smaller than the uncertainty of the observations.