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In view of the recent report by Connaughton we analyse continuous TTE data of Fermi-GBM around the time of the gravitational wave event GW 150914. We find that after proper accounting for low count statistics, the GBM transient event at 0.4…

High Energy Astrophysical Phenomena · Physics 2016-11-09 J. Greiner , J. M. Burgess , V. Savchenko , H. -F. Yu

We have performed an in-depth concept study of a gravitational wave data analysis method which targets repeated long quasi-monochromatic transients (triggers) from cosmic sources. The algorithm concept can be applied to multi-trigger data…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 David Murphy , Maggie Tse , Peter Raffai , Imre Bartos , Rubab Khan , Zsuzsa Marka , Luca Matone , Keith Redwine , Szabolcs Marka

We have developed a lightweight tool, {\tt RapidGBM}, featuring a web-based interface and capabilities of rapid calculation of Fermi Gamma-ray Burst Monitor (GBM) visibilities and performance of basic data analysis. It has two key features:…

We analyze 7.3 years of ANTARES high-energy neutrino and Fermi LAT {\gamma}-ray data in search of cosmic neutrino + {\gamma}-ray ({\nu}+{\gamma}) transient sources or source populations. Our analysis has the potential to detect either…

High Energy Astrophysical Phenomena · Physics 2020-02-13 H. A. Ayala Solares , D. F. Cowen , J. J. DeLaunay , D. B. Fox , A. Keivani , M. Mostafá , K. Murase , C. F. Turley , A. Albert , M. André , M. Anghinolfi , G. Anton , M. Ardid , J. -J. Aubert , J. Aublin , B. Baret , J. Barrios-Martı , S. Basa , B. Belhorma , V. Bertin , S. Biagi , R. Bormuth , J. Boumaaza , S. Bourret , M. Bouta , M. C. Bouwhuis , H. Brânzaş , R. Bruijn , J. Brunner , J. Busto , A. Capone , L. Caramete , J. Carr , S. Celli , M. Chabab , R. Cherkaoui El Moursli , T. Chiarusi , M. Circella , A. Coleiro , M. Colomer , R. Coniglione , H. Costantini , P. Coyle , A. Creusot , A. F. Dı'az , A. Deschamps , C. Distefano , I. Di Palma , A. Domi , R. Donà , C. Donzaud , D. Dornic , D. Drouhin , T. Eberl , I. El Bojaddaini , N. El Khayati , D. Elsässer , A. Enzenhöfer , A. Ettahiri , F. Fassi , P. Fermani , G. Ferrara , L. Fusco , P. Gay , H. Glotin , R. Gozzini , T. Grégoire , R. Gracia Ruiz , K. Graf , S. Hallmann , H. van Haren , A. J. Heijboer , Y. Hello , J. J. Hernández-Rey , J. Hößl , J. Hofestädt , G. Illuminati , C. W. James , M. de Jong , M. Jongen , M. Kadler , O. Kalekin , U. Katz , N. R. Khan-Chowdhury , A. Kouchner , M. Kreter , I. Kreykenbohm , V. Kulikovskiy , R. Lahmann , R. Le Breton , D. Lefèvre , E. Leonora , G. Levi , M. Lincetto , D. Lopez-Coto , M. Lotze , S. Loucatos , G. Maggi , M. Marcelin , A. Margiotta , A. Marinelli , J. A. Martınez-Mora , R. Mele , K. Melis , P. Migliozzi , A. Moussa , S. Navas , E. Nezri , C. Nielsen , A. Nuñez , M. Organokov , G. E. Păvălaş , C. Pellegrino , M. Perrin-Terrin , P. Piattelli , V. Popa , T. Pradier , L. Quinn , C. Racca , N. Randazzo , G. Riccobene , A. Sánchez-Losa , A. Salah-Eddine , I. Salvadori , D. F. E. Samtleben , M. Sanguineti , P. Sapienza , F. Schüssler , M. Spurio , Th. Stolarczyk , M. Taiuti , Y. Tayalati , T. Thakore , A. Trovato , B. Vallage , V. Van Elewyck , F. Versari , S. Viola , D. Vivolo , J. Wilms , D. Zaborov , J. D. Zornoza , J. Zúñiga

We describe a search of archival data from the Burst and Transient Source Experiment (BATSE). The purpose of the search is to find astronomically interesting transients that did not activate the burst detection (or ``trigger'') system…

Long-lived gravitational wave (GW) transients have received interest in the last decade, as the sensitivity of LIGO and Virgo increases. Such signals, lasting between 10 and 1000s, can come from a variety of sources, including accretion…

General Relativity and Quantum Cosmology · Physics 2021-08-24 Adrian Macquet , Marie-Anne Bizouard , Nelson Christensen , Michael Coughlin

Gamma-ray Bursts (GRB) were discovered by satellite-based detectors as powerful sources of transient $\gamma$-ray emission. The Fermi satellite detected an increasing number of these events with its dedicated Gamma-ray Burst Monitor (GBM),…

Instrumentation and Methods for Astrophysics · Physics 2021-09-29 G. La Mura , U. Barres de Almeida , R. Conceição , A. De Angelis , F. Longo , M. Pimenta , E. Prandini , E. Ruiz-Velasco , B. Tomé

The Large Area Telescope on the Fermi gamma-ray Space Telescope (FGST, ex-GLAST) provides unprecedented sensitivity for all-sky monitoring of gamma-ray activity. It is an adequate telescope to detect transient sources, since the observatory…

High Energy Astrophysical Phenomena · Physics 2010-08-25 Sylvain Chaty

We review more than 10 years of continuous monitoring of accreting X-ray pulsars with the all-sky Gamma-ray Burst Monitor (GBM) aboard the Fermi Gamma-ray Space Telescope. Our work includes data from the start of GBM operations in August…

High Energy Astrophysical Phenomena · Physics 2020-06-18 C. Malacaria , P. Jenke , O. J. Roberts , C. A. Wilson-Hodge , W. H. Cleveland , B. Mailyan

The observation of Very High Energy gamma rays (VHE, E > 100 GeV) led us to the identification of extremely energetic processes and particle acceleration sites both within our Galaxy and beyond. We expect that VHE facilities, like CTA, will…

Instrumentation and Methods for Astrophysics · Physics 2021-09-08 G. La Mura , G. Chiaro , R. Conceiçao , A. De Angelis , M. Pimenta , B. Tomé

We introduce a method for detecting astrophysical transients evolving on timescales of milliseconds to minutes using cosmic microwave background (CMB) survey telescopes. While previous transient searches in CMB data operate in map space,…

Since its launch in 2008, the Fermi Gamma-ray Burst Monitor (GBM) has triggered and located on average approximately two gamma-ray bursts (GRB) every three days. Here we present the third of a series of catalogs of GRBs detected by GBM,…

XMM-Newton's large field of view and excellent sensitivity have resulted in hundreds of thousands of serendipitous X-ray detections. Whilst their spectra have been widely exploited, their variable nature has been little studied. Part of…

High Energy Astrophysical Phenomena · Physics 2019-04-01 Natalie A. Webb

The primary challenge in the study of explosive astrophysical transients is their detection and characterisation using multiple messengers. For this purpose, we have developed a new data-driven discovery framework, based on deep learning.…

High Energy Astrophysical Phenomena · Physics 2020-05-14 Iftach Sadeh

Context. Fast Radio Bursts (FRBs) are millisecond-long bursts uniquely detected at radio frequencies. FRB 131104 is the only case for which a $\gamma$-ray transient positionally and temporally consistent was claimed. This high-energy…

High Energy Astrophysical Phenomena · Physics 2019-11-06 R. Martone , C. Guidorzi , R. Margutti , L. Nicastro , L. Amati , F. Frontera , M. Marongiu , M. Orlandini , E. Virgilli

In the first two years since the launch of the Fermi Observatory, the Gamma-ray Burst Monitor (GBM) has detected over 500 Gamma-Ray Bursts (GRBs), of which 18 were confidently detected by the Large Area Telescope (LAT) above 100 MeV.…

High Energy Astrophysical Phenomena · Physics 2022-03-02 Elisabetta Bissaldi

The secondary instrument onboard Fermi, the Gamma-ray Burst Monitor (GBM) is an all sky monitor consisting of 14 scintillation detectors. When analysing transient events such as Gamma-Ray Bursts (GRBs) and Solar Flares (SFs) the background…

High Energy Astrophysical Phenomena · Physics 2011-11-17 Gerard Fitzpatrick , Valerie Connaughton , Sheila McBreen , Dave Tierney

The Gamma-Ray Burst Monitor (GBM) will significantly augment the science return from the Fermi Observatory in the study of Gamma-Ray Bursts (GRBs). The primary objective of GBM is to extend the energy range over which bursts are observed…

The Galactic center has some of the highest stellar densities in the Galaxy and a range of interstellar scattering properties that may aid in the detection of new radio-selected transient events. Here we describe a search for radio…

High Energy Astrophysical Phenomena · Physics 2016-12-14 Anirudh Chiti , Shami Chatterjee , Robert Wharton , James Cordes , T. Joseph W. Lazio , David L. Kaplan , Geoffrey C. Bower , Steve Croft

The detection of an electromagnetic transient which may originate from a binary neutron star merger can increase the probability that a given segment of data from the LIGO-Virgo ground-based gravitational-wave detector network contains a…

Instrumentation and Methods for Astrophysics · Physics 2013-06-27 Luke Zoltan Kelley , Ilya Mandel , Enrico Ramirez-Ruiz