astro-ph/0605086 [abs, ps, pdf, other] :

Title: Giant Pulses in Pulsar PSR J1752+2359

Authors: A. A. Ershov, A. D. Kuzmin

Comments: 5 pages, 4 figures, to appear in Chin. J. Astron. Astrophys, proceedings of The 2005 Lake Hanas International Pulsar Symposium

We report the detection of Giant Pulses (GPs) in the pulsar PSR J1752+2359. The energy of the strongest GP exceeds the energy of the average pulse by a factor of 200, in which it stands out from all known pulsars with GPs. PSR J1752+2359 as well as the previously detected PSR B0031-07 and PSR B1112+50, belongs to the first group of pulsars found to have GPs without a high magnetic field at the light cylinder.

http://arxiv.org/abs/astro-ph/0605086

astro-ph/0605087 [abs, ps, pdf, other] :

Title: Probing the Pulsar Wind Nebula of PSR B0355+54

Authors: Katherine E. McGowan (1,2), W. Tom Vestrand (3), Jamie A. Kennea (4), Silvia Zane (2), Mark Cropper (2), France A. Cordova (5) ((1) University of Southampton, (2) MSSL, (3) LANL, (4) PSU, (5) UC Riverside)

Comments: 9 pages (uses emulateapj.cls), 8 figures, 2 tables, accepted for publication in ApJ

We present XMM-Newton and Chandra X-ray observations of the middle-aged radio pulsar PSR B0355+54. Our X-ray observations reveal emission not only from the pulsar itself, but also from a compact diffuse component extending ~50'' in the opposite direction to the pulsar's proper motion. There is also evidence for the presence of fainter diffuse emission extending ~5' from the point source. The compact diffuse feature is well-fitted with a power-law, the index of which is consistent with the values found for other pulsar wind nebulae. The morphology of the diffuse component is similar to the ram-pressure confined pulsar wind nebulae detected for other sources. The X-ray emission from the pulsar itself is described well by a thermal plus power-law fit, with the thermal emission most likely originating in a hot polar cap.

http://arxiv.org/abs/astro-ph/0605087