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Related papers: INTEGRAL Results on Gamma-Ray Bursts

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INTEGRAL has made a very significant contribution to our understanding of the physics of AGN. We illustrate this progress by looking at the considerations that were made at the time of the selection of the INTEGRAL mission and discussing…

High Energy Astrophysical Phenomena · Physics 2013-02-14 Thierry J. -L. Courvoisier

On January 6th 2004, the IBAS burst alert system triggered the 8th gamma-ray burst (GRB) to be detected by the INTEGRAL satellite. The position was determined and publicly distributed within 12s, enabling ESA's XMM-Newton to take advantage…

GRB 041219A is one of the longest and brightest gamma-ray bursts (GRBs) ever observed. It was discovered by the INTEGRAL satellite, and thanks to a precursor happening about 300 s before the bulk of the burst, ground based telescopes were…

High Energy Astrophysical Phenomena · Physics 2015-05-27 D. Gotz , S. Covino , R. Hascoet , A. Fernandez-Soto , F. Daigne , R. Mochkovitch , P. Esposito

The INTEGRAL Burst Alert System (IBAS) is the software for real time detection of Gamma Ray Bursts (GRBs) and the rapid distribution of their coordinates. IBAS has been running almost continuously at the INTEGRAL Science Data Center since…

Astrophysics · Physics 2007-05-23 S. Mereghetti , D. Gotz , J. Borkowski , M. Beck , A. von Kienlin , N. Lund

The spectrometer SPI, one of the two main instruments of the INTEGRAL spacecraft, has strong capabilities in the Field of Gamma-Ray Burst (GRB) detections. In its 16 degree Field of view (FoV) SPI is able to trigger and to localize GRBs.…

Gamma-Ray Bursts are among the most powerful and violent events in the Universe. Despite over half a century of observations of these transient sources, many open questions remain about their nature and the physical emission mechanisms at…

The INTEGRAL hard X-ray surveys have proven to be of fundamental importance. INTEGRAL has mapped the Galactic plane with its large field of view and excellent sensitivity. Such hard X-ray snapshots of the whole Milky Way on a time scale of…

In the last 25 years, a new generation of X-ray satellites imparted a significant leap forward in our knowledge of X-ray pulsars. The discovery of accreting and transitional millisecond pulsars proved that disk accretion can spin up a…

Despite several decades of multi-wavelength and multi-messenger spectral observations, Gamma-Ray Bursts (GRBs) remain one of the big mysteries of modern astrophysics. Polarization measurements are essential to gain a more clear and complete…

Instrumentation and Methods for Astrophysics · Physics 2021-09-08 N. De Angelis , J. M. Burgess , F. Cadoux , J. Greiner , J. Hulsman , M. Kole , H. C. Li , S. Mianowski , A. Pollo , N. Produit , D. Rybka , J. Stauffer , J. C. Sun , B. B. Wu , X. Wu , A. Zadrozny , S. N. Zhang

On December 19, 2002, during the Performance and Verification Phase of INTEGRAL, a Gamma-Ray Burst (GRB) has been detected and localized in real time with the INTEGRAL Burst Alert System (IBAS). Here we present the results obtained with the…

AGN are among the most energetic phenomena in the Universe and in the last two decades INTEGRAL's contribution in their study has had a significant impact. Thanks to the INTEGRAL extragalactic sky surveys, all classes of soft X-ray detected…

High Energy Astrophysical Phenomena · Physics 2020-11-11 Angela Malizia , Sergey Sazonov , Loredana Bassani , Elena Pian , Volker Beckmann , Manuela Molina , Ilya Mereminskiy , Guillaume Belanger

We review the results on Gamma-ray Bursts obtained during the first two and a half years of operations of the INTEGRAL Burst Alert System (IBAS). In many cases GRB coordinates have been distributed with an unprecedented combination of…

Astrophysics · Physics 2010-11-11 S. Mereghetti , D. Gotz

The short duration (T90 < 2 s) gamma-ray bursts (GRBs) detected in the SPI-ACS experiment onboard the INTEGRAL observatory are investigated. Averaged light curves have been constructed for various groups of events, including short GRBs and…

High Energy Astrophysical Phenomena · Physics 2015-05-19 P. Yu. Minaev , A. S. Pozanenko , V. M. Loznikov

In the first half year of operation the satellite borne POLAR instrument detected a total of 55 Gamma-Ray Bursts about 10 of which were bright enough to allow for detailed polarization studies, thereby forming the start of the first…

Instrumentation and Methods for Astrophysics · Physics 2018-04-16 Merlin Kole

Observations of the gamma-ray sky reveal the most powerful sources and the most violent events in the Universe. While at lower wavebands the observed emission is generally dominated by thermal processes, the gamma-ray sky provides us with a…

Astrophysics · Physics 2007-05-23 Jürgen Knödlseder

We search for possible time lags caused by quantum gravitational (QG) effects using gamma-ray bursts (GRBs) detected by INTEGRAL. The advantage of this satellite is that we have at our disposal the energy and arrival time of every detected…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Raphael Lamon , Nicolas Produit , Frank Steiner

The detection of astrophysical Gamma-Ray Bursts (GRBs) has always been intertwined with the challenge of identifying the direction of the source. Accurate angular localization of better than a degree has been achieved to date only with…

Instrumentation and Methods for Astrophysics · Physics 2021-02-25 Roi Rahin , Luca Moleri , Alex Vdovin , Amir Feigenboim , Solomon Margolin , Shlomit Tarem , Ehud Behar , Max Ghelman , Alon Osovizky

Despite over 50 years of research, many open questions remain about the origin and nature of GRBs. Polarization measurements of the prompt emission of these extreme phenomena have long been thought to be the key to answering a range of…

Over half a century from the discovery of gamma-ray bursts (GRBs), the dominant radiation mechanism responsible for their bright and highly variable prompt emission remains poorly understood. Spectral information alone has proven…

High Energy Astrophysical Phenomena · Physics 2021-10-20 Ramandeep Gill , Merlin Kole , Jonathan Granot

In order to obtain an overview of the gamma-ray bursts (GRBs), we need a full sample. In this paper, we collected 6289 GRBs (from GRB 910421 to GRB 160509A) from the literature, including prompt emission, afterglow and host galaxy…

High Energy Astrophysical Phenomena · Physics 2020-05-13 Feifei Wang , Yuan-Chuan Zou , Fuxiang Liu , Bin Liao , Yu Liu , Yating Chai , Lei Xia