Deep searches for pulsations in SGR 1627-41 and 0526-66
Abstract
Deep searches for X-ray pulsations from SGR 1627-41 and SGR 0526-66 were performed with ASCA. SGR 1806-20 and 1900+14 were previously established as X-ray pulsars. SGR 0526-66 is suspected to be a strong candidate for a magnetar, but X-ray pulsation has not been confirmed yet. Detection of X-ray pulsations from SGR 1627-41 and SGR 0526-66, is the key issue to the unified magnetar model of the SGRs. Although ASCA has done the deepest observations of ~80 ks for both of them, we did not detect pulsations. The long-term period history of SGR 1900+14 is compared with a very similar change of the AXP pulsar 1E1048.1-5937. .
- Publication:
-
Gamma-ray Bursts, 5th Huntsville Symposium
- Pub Date:
- September 2000
- DOI:
- 10.1063/1.1361641
- Bibcode:
- 2000AIPC..526..786M
- Keywords:
-
- 98.70.Qy;
- 97.60.Gb;
- 97.60.Jd;
- X-ray sources;
- X-ray bursts;
- Pulsars;
- Neutron stars