Timing analysis of the core of the Crab-like SNR G21.5-0.9
arXiv:astro-ph/0112242 · doi:10.1051/0004-6361:20011839
Abstract
The Crab-like SNR G21.5-0.9 was observed in the X-ray band (0.5-10 keV) by the XMM-Newton satellite for over 100 ks. The large effective area of the EPIC instrument has allowed us to to perform a deep search for pulsations from the central core of G21.5-0.9. No pulsations were found with upper limits on the pulsed fraction between 7.5 % and 40 % (depending on frequency and energy range).
3 pages, latex, 2 tables, no figures, accepted for publication by A&A