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Detection and imaging of atmospheric radio flashes from cosmic ray air showers

By SpaceRef Editor
July 9, 2005
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Astrophysics, abstract

From: Emre Tepedelenlioglu [view email]
Date: Sat, 21 May 2005 23:42:38 GMT (89kb)

Chandra and XMM-Newton observations of the exceptional pulsar PSR

E. Tepedelenlioglu,
H. Ogelman

Comments: 13 pages, 4 figures, submitted ApJL

PSR B0628-28 is a radio pulsar which was first detected in the X-ray band by
ROSAT and then later observed with Chandra and XMM-Newton. The Chandra
observation yielded an X-ray luminosity two orders of magnitude higher than
what is expected for spin-powered pulsars, also there were no pulsations
detected. The XMM-Newton observation, however, reveals pulsations at the
expected radio period, P=1.244 s. The simultaneously analyzed spectra also
gives a luminosity (in cgs) Log Lx=30.34, which is ~350 times greater than what
would be expected from the correlation between Lx-Edot. We present the timing
and spectral analysis of the combined Chandra and XMM-Newton archival data.

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