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During the summer of 2006, the accreting X-ray pulsar EXO 2030+375 underwent its first giant outburst since its discovery in 1985. Our observations include the first ever of the rise of a giant outburst of EXO 2030+375. EXO 2030+375 was monitored dai
Externí odkaz:
http://arxiv.org/abs/0804.1375
X-ray emission following giant flares of magnetars can be categorized into three categories of time scales (a) short term afterglow (b) medium term afterglow and (c) long term afterglow. Short term afterglow, which declines over several hours, seems
Externí odkaz:
http://arxiv.org/abs/astro-ph/0611747
Autor:
Woods, Peter M., Kouveliotou, Chryssa, Finger, Mark H., Gogus, Ersin, Wilson, Colleen A., Patel, Sandeep K., Hurley, Kevin, Swank, Jean H.
Publikováno v:
Astrophys.J.654:470-486,2006
On 2004 December 27, a highly-energetic giant flare was recorded from the magnetar candidate SGR 1806-20. In the months preceding this flare, the persistent X-ray emission from this object began to undergo significant changes. Here, we report on the
Externí odkaz:
http://arxiv.org/abs/astro-ph/0602402
The EXIST active shields, planned for the main detectors of the coded aperture telescope, will have approximately 15 times the area of the BATSE detectors, and they will have a good geometry on the spacecraft for viewing both the leading and trailing
Externí odkaz:
http://arxiv.org/abs/astro-ph/0502020
Publikováno v:
Astrophys.J. 620 (2005) L99-L102
EXO 2030+375, a 42-second transient X-ray pulsar with a Be star companion, has been observed to undergo an outburst at nearly every periastron passage for the last 13.5 years. From 1994 through 2002, the global trend in the pulsar spin frequency was
Externí odkaz:
http://arxiv.org/abs/astro-ph/0501386
Autor:
Wilson, Colleen A., Weisskopf, Martin C., Finger, Mark H., Coe, M. J., Greiner, Jochen, Reig, Pablo, Papamastorakis, Giannis
Publikováno v:
Astrophys.J. 622 (2005) 1024-1032
GRO J2058+42 is a 195 s transient X-ray pulsar discovered in 1995 with BATSE. In 1996, RXTE located GRO J2058+42 to a 90% confidence error circle with a 4' radius. On 20 February 2004, the region including the error circle was observed with Chandra A
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412527