TITLE

The γ-ray burst-detection system of SPI

AUTHOR(S)
Lichti, G. G.; Georgii, R.; von Kienlin, A.; Scho¨nfelder, V.; Wunderer, C.; Jung, H.-J.; Hurley, K.
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 510 Issue 1, p722
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The determination of precise locations of γ-ray bursts is a crucial task of γ-ray astronomy. Although γ-ray burst locations can be obtained nowadays from single experiments (BATSE, COMPTEL, BeppoSax) the location of bursts via triangulation using the interplanetary network is still important because not all bursts will be located precisely enough by these single instruments. In order to get location accuracies down to arcseconds via triangulation one needs long baselines. At the beginning of the next decade several spacecrafts which explore the outer planetary system (the Mars-Surveyor-2001 Orbiter and probably Ulysses) will carry γ-ray burst instruments. INTEGRAL as a near-earth spacecraft is the ideal counterpart for these satellites. The massive anticoincidence shield of the INTEGRAL-spectrometer SPI allows the measurement of γ-ray bursts with a high sensitivity. Estimations have shown that with SPI some hundred γ-ray bursts per year on the 5σ level can be measured. This is equivalent to the BATSE sensitivity. We describe the γ-ray burst-detection system of SPI, present its technical features and assess the scientific capabilities. © 2000 American Institute of Physics.
ACCESSION #
6029698

 

Related Articles

  • Asymmetric subpeaks in short duration bursts. Bhat, P. N.; Gupta, Varsha; Das Gupta, Patrick // AIP Conference Proceedings;2000, Vol. 510 Issue 1, p538 

    Subpeaks in 65 short duration gamma ray bursts belonging to the 3B catalogue have been identified and are fitted with lognormal functions as most of them are of FRED kind. Characterising the symmetry of a subpeak by the ratio of rise and decay time, we find that statistically the first peak of a...

  • An analytic model of Gamma-ray Burst pulse profiles. Kocevski, Dan; Liang, Edison P. // AIP Conference Proceedings;2001, Vol. 586 Issue 1, p623 

    Gamma-ray Bursts (GRBs) have puzzled astronomers for over three decades. Recent reports of correlations between a burst's lag and variability to redshift have begun to demonstrate how the analysis of a burst's temporal structure can play an important role in our understanding of this phenomenon....

  • Heating of the circumstellar medium by gamma-ray burst prompt emission. Bad'in, D. A.; Blinnikov, S. I.; Postnov, K. A. // Astronomy Letters;Oct2010, Vol. 36 Issue 10, p687 

    We describe the technique and results of our numerical simulation of the effects related to the heating of the circumstellar medium by hard gamma-ray burst radiation using a modified STELLA radiation-hydrodynamics code. The code modification allows the processes of nonstationary heating and...

  • Are there Gravitationally Lensed Gamma-ray Bursts detected by GBM? Davidson, R.; Bhat, P. N.; Li, Gang // AIP Conference Proceedings;8/19/2011, Vol. 1358 Issue 1, p17 

    Gamma-ray Burst(GRB) sources are at cosmological distances. Hence it is possible that the GRB sources are gravitationally lensed by a foreground object like a galaxy or a cluster of galaxies. In such a case, two GRBs with the same location and with similar temporal as well as spectral properties...

  • RXTE All-Sky Monitor Observations of GRB Light Curves. Levine, Alan M.; Bradt, Hale; Remillard, Ron; Smith, Donald A. // AIP Conference Proceedings;2003, Vol. 662 Issue 1, p276 

    X-ray light curves for 4 gamma-ray bursts detected with the All-Sky Monitor on RXTE are presented. For two of the bursts, we also present simultaneous higher energy light curves obtained by BATSE and the BeppoSAX GRBM. We discuss the important features of the 4 sets of light curves and their...

  • Quasiperiodic oscillations in the light curve of GRB 080319B. Dranevich, V. A.; Dmitriyev, P. B.; Gnedin, Yu. N. // Astrophysics;Oct2009, Vol. 52 Issue 4, p534 

    A modified spectral analysis technique is used to study the temporal structure of the emission from the γ-ray burst GRB 080319B detected in three space missions, Swift/BAT, Wind/KONUS, and Integral/SPI ACS. The energy range of the γ rays detected in these experiments covers 15-10000 keV....

  • Multicolor Optical Observation of GRB061121 by MITSuME. Ishimura, T.; Kawai, N.; Kotani, T.; Yatsu, Y.; Shimokawabe, T.; Vasquez, N. // AIP Conference Proceedings;5/22/2008, Vol. 1000 Issue 1, p261 

    GRB061121, a bright Swift “GRB of interest”, was observed with the 3-color 50 cm MITSuME Telescope at Akeno, Japan starting at 17:36:34 November UT, 134 minutes after the trigger. We obtained 60 s×115 frames of images in Ic, Rc, and g′ bands. The magnitudes of the co-added...

  • Redshift Catalog of Swift long GRBs. Limin Xiao; Schaefer, Bradley E. // AIP Conference Proceedings;5/25/2009, Vol. 1133 Issue 1, p486 

    The redshifts of long-duration Gamma-Ray Bursts (GRBs) remain an important issue, and unfortunately only 30% of GRBs have redshifts from optical spectroscopy. The redshifts for most of the remaining 70% can be determined with useful accuracy by means of several luminosity relations, wherein some...

  • Combined Swift BAT-XRT Lightcurves. Veres, P.; Bagoly, Z.; Kelemen, J.; Řípa, J. // AIP Conference Proceedings;5/25/2009, Vol. 1133 Issue 1, p443 

    With the early afterglow localizations of gamma-ray burst positions made by Swift, the clear delimitation of the prompt phase and the afterglow is not so obvious any more. It is important to see weather the two phases have the same origin or they stem from different parts of the progenitor...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics