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Ground-based calibration and characterization of the Fermi Gamma-Ray Burst Monitor Detectors
Elisabetta Bissaldi, Andreas von Kienlin, Giselher G. Lichti +18
One of the scientific objectives of NASA's Fermi Gamma-ray Space Telescope is the study of Gamma-Ray Bursts (GRBs). The Fermi Gamma-Ray Burst Monitor (GBM) was designed to detect a…
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…
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…
GRIPS - Gamma-Ray Burst Investigation via Polarimetry and Spectroscopy
J. Greiner
The primary scientific goal of the GRIPS mission is to revolutionize our understanding of the early universe using gamma-ray bursts. We propose a new generation gamma-ray observato…
Three X-ray transients in M31 observed with Swift
R. Voss, W. Pietsch, F. Haberl +5
The purpose of this study is to find transient X-ray sources in M31, and to investigate and classify their nature. Three X-ray transients were observed with Swift. For each of the…
Looking for black-holes in X-ray binaries with XMM-Newton: XTE J1817-330 and XTE J1856+053
Gloria Sala, Jochen Greiner, Natalia Primak
The X-ray binary XTE J1817-330 was discovered in outburst on 26 January 2006 with RXTE/ASM. One year later, another X-ray transient discovered in 1996, XTE J1856+053, was detected…