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A strong optical flare before the rising afterglow of GRB 080129
J. Greiner, T. Krühler, S. McBreen +11
We report on GROND observations of a 40 sec duration (rest-frame) optical flare from GRB 080129 at redshift 4.349. The rise- and decay time follow a power law with indices +12 and…
The 2007 outburst of the X-ray binary XTE J1856+053
G. Sala, J. Greiner, M. Ajello +1
On 28 February 2007 a new outburst of the previously known transient source XTE J1856+053 was detected with RXTE/ASM. We present here the results of an XMM-Newton (0.5-10.0 keV) Ta…
Cosmic X-ray background and Earth albedo Spectra with Swift/BAT
M. Ajello, J. Greiner, G. Sato +8
We use Swift/BAT Earth occultation data at different geomagnetic latitudes to derive a sensitive measurement of the Cosmic X-ray background (CXB) and of the Earth albedo emission i…
INTEGRAL observations of the blazar Mrk 421 in outburst (Results of a multi-wavelength campaign)
G. G. Lichti, E. Bottacini, M. Ajello +15
We report the results of a multi-wavelength campaign on the blazar Mrk 421 during outburst. We observed four strong flares at X-ray energies that were not seen at other wavelengths…
Discovery of superstrong, fading, iron line emission and double-peaked Balmer lines of the galaxy SDSSJ0952+2143 - the light echo of a huge flare
S. Komossa, H. Zhou, T. Wang +9
We report the discovery of superstrong, fading, high-ionization iron line emission in the galaxy SDSSJ095209.56+214313.3 (SDSSJ0952+2143 hereafter), which must have been caused by…
BAT X-ray Survey - III: X-ray Spectra and Statistical Properties
M. Ajello, A. Rau, J. Greiner +7
In this concluding part of the series of three papers dedicated to the Swift/BAT hard X-ray survey (BXS), we focus on the X-ray spectral analysis and statistical properties of the…