The period history of the X-ray pulsar in MSH 15-52.
Abstract
New and refined mesurements of the pulse period of the X-ray pulsar in the supernova remnant MSH 15-52 are presented. The data were obtained with the Monitor proportional Counter on board the HEAO 2 observatory. The period measurements were obtained by analyzing pulse arrival times determined by cross-correlating sample pulse profiles with a master template. The period history for the source and a representative 0.15 s X-ray light curve are shown. The X-ray measurements alone lead to a refined value of the period derivative of (1.5382 + or -0.0024) x 10 to the -12th s/s, while including the results of more recent radio observations leads to a value of (1.54029 + or -0.00095) x 10 to the -12th s/s. These results indicate a hard-point source surrounded by diffuse nebular emission.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1983
- DOI:
- 10.1086/160908
- Bibcode:
- 1983ApJ...267..711W
- Keywords:
-
- Periodic Variations;
- Pulsars;
- Pulse Duration;
- Supernova Remnants;
- X Ray Sources;
- Cross Correlation;
- Light Curve;
- Astrophysics