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The Photo-z Infrared Telescope (PIRT) -- a space instrument for rapid follow up of high-redshift gamma-ray bursts and electromagnetic counterparts to gravitational wave events

The Photo-z InfraRed Telescope (PIRT) is an instrument on the Gamow Explorer, currently proposed for a NASA Astrophysics Medium Explorer. PIRT works in tandem with a companion wide-field instrument, the Lobster Eye X-ray Telescope (LEXT),…

Instrumentation and Methods for Astrophysics · Physics 2021-11-19 M. Seiffert , A. Balady , T. -C. Chang , R. Dyer , H. Fausey , S. Guiriec , M. Hart , R. O. Morris , J. I. Rodriguez , P. Roming , M. Rud , D. Russell , R. Sambruna , R. Terrile , V. Torossian , A. J. van der Horst , N. E. White , P. Willems , A. Woodmansee , E. T. Young

Testing and Performance of UFFO Burst Alert & Trigger Telescope

The Ultra-Fast Flash Observatory pathfinder (UFFO-p) is a new space mission dedicated to detect Gamma-Ray Bursts (GRBs) and rapidly follow their afterglows in order to provide early optical/ultraviolet measurements. A GRB location is…

High Energy Astrophysical Phenomena · Physics 2017-12-18 J. Ripa , M. B. Kim , J. Lee , I. H. Park , J. E. Kim , H. Lim , S. Jeong , A. J. Castro-Tirado , P. H. Connell , C. Eyles , V. Reglero , J. M. Rodrigo , V. Bogomolov , M. I. Panasyuk , V. Petrov , S. Svertilov , I. Yashin , S. Brandt , C. Budtz-Jorgensen , Y. -Y. Chang , P. Chen , M. A. Huang , T. -C. Liu , J. W. Nam , M. -Z. Wang , C. R. Chen , H. S. Choi , S. -W. Kim , K. W. Min

Accessing the population of high redshift Gamma Ray Bursts

Gamma Ray Bursts (GRBs) are a powerful probe of the high redshift Universe. We present a tool to estimate the detection rate of high-z GRBs by a generic detector with defined energy band and sensitivity. We base this on a population model…

High Energy Astrophysical Phenomena · Physics 2015-06-23 G. Ghirlanda , R. Salvaterra , G. Ghisellini , S. Mereghetti , G. Tagliaferri , S. Campana , J. P. Osborne , P. O'Brien , N. Tanvir , R. Willingale , L. Amati , S. Basa , M. G. Bernardini , D. Burlon , S. Covino , P. D'Avanzo , F. Frontera , D. Gotz , A. Melandri , L. Nava , L. Piro , S. D. Vergani

Perspectives on Gamma-Ray Burst Physics and Cosmology with Next Generation Facilities

High-redshift Gamma-Ray Bursts (GRBs) beyond redshift $\sim6$ are potentially powerful tools to probe the distant early Universe. Their detections in large numbers and at truly high redshifts call for the next generation of high-energy…

High Energy Astrophysical Phenomena · Physics 2016-08-03 Weimin Yuan , Lorenzo Amati , John K. Cannizzo , Bertrand Cordier , Neil Gehrels , Giancarlo Ghirlanda , Diego Götz , Nicolas Produit , Yulei Qiu , Jianchao Sun , Nial R. Tanvir , Jianyan Wei , Chen Zhang

Gravitational Lensing Limits on the Average Redshift of Gamma-Ray Bursts

The lack of bright host galaxies in several recently examined gamma-ray burst (GRB) error boxes suggests that the redshifts of cosmological GRBs may be significantly higher than previously believed. On the other hand, the non-detection of…

Astrophysics · Physics 2009-10-30 Daniel E. Holz , M. Coleman Miller , Jean M. Quashnock

Across the soft gamma-ray regime: utilizing simultaneous detections in the Compton Spectrometer and Imager (COSI) and the Background and Transient Observer (BTO) to understand astrophysical transients

The Compton Spectrometer and Imager (COSI) is a NASA funded Small Explorer (SMEX) mission slated to launch in 2027. COSI will house a wide-field gamma-ray telescope designed to survey the entire sky in the 0.2--5 MeV range. Using germanium…

High Energy Astrophysical Phenomena · Physics 2024-08-30 Hannah C. Gulick , Eliza Neights , Samer Al Nussirat , Claire Tianyi Chen , Kaylie Ching , Cassandra Dove , Alyson Joens , Carolyn Kierans , Hubert Liu , Israel Martinez , Tomas Mician , Shunsaku Nagasawa , Shreya Nandyala , Isabel Schmidtke , Derek Shah , Andreas Zoglauer , Kazuhiro Nakasawa , Tadayuki Takahashi , Juan-Carlos Martinez Oliveros , John A. Tomsick

GLAST and Lorentz violation

We study possible Lorentz violations by means of gamma-ray bursts (GRB) with special focus on the Large Array Telescope (LAT) of GLAST. We simulate bursts with gtobssim and introduce a Lorentz violating term in the arrival times of the…

Astrophysics · Physics 2009-07-07 Raphael Lamon

Testing the ubiquitous presence of very high energy emission in gamma-ray bursts with the MAGIC telescopes

Gamma-ray bursts (GRBs) are the most powerful transient objects in the Universe, and they are a primary target for the MAGIC Collaboration. Recognizing the challenges of observing these elusive objects with Imaging Atmospheric Cherenkov…

High Energy Astrophysical Phenomena · Physics 2025-12-24 S. Abe , J. Abhir , A. Abhishek , V. A. Acciari , A. Aguasca-Cabot , I. Agudo , T. Aniello , S. Ansoldi , L. A. Antonelli , A. Arbet Engels , C. Arcaro , T. T. H. Arnesen , K. Asano , A. Babic , C. Bakshi , U. Barres de Almeida , J. A. Barrio , L. Barrios-Jimenez , I. Batkovic , J. Baxter , J. Becerra Gonzalez , W. Bednarek , E. Bernardini , J. Bernete , A. Berti , J. Besenrieder , C. Bigongiari , A. Biland , O. Blanch , G. Bonnoli , Ž. Bošnjak , E. Bronzini , I. Burelli , A. Campoy-Ordaz , A. Carosi , R. Carosi , M. Carretero-Castrillo , A. J. Castro-Tirado , D. Cerasole , G. Ceribella , Y. Chai , A. Cifuentes , J. L. Contreras , J. Cortina , S. Covino , G. D'Amico , P. Da Vela , F. Dazzi , A. De Angelis , B. De Lotto , R. de Menezes , M. Delfino , J. Delgado , C. Delgado Mendez , F. Di Pierro , R. Di Tria , L. Di Venere , A. Dinesh , D. Dominis Prester , A. Donini , D. Dorner , M. Doro , L. Eisenberger , D. Elsaesser , J. Escudero , L. Fariña , A. Fattorini , L. Foffano , L. Font , S. Fröse , S. Fukami , Y. Fukazawa , R. J. García López , S. García Soto , M. Garczarczyk , S. Gasparyan , M. Gaug , J. G. Giesbrecht Paiva , N. Giglietto , F. Giordano , P. Gliwny , N. Godinovic , T. Gradetzke , R. Grau , D. Green , J. G. Green , P. Günther , D. Hadasch , A. Hahn , T. Hassan , L. Heckmann , J. Herrera Llorente , D. Hrupec , R. Imazawa , S. Inoue , D. Israyelyan , J. Jahanvi , I. Jiménez Martínez , J. Jiménez Quiles , J. Jormanainen , S. Kankkunen , T. Kayanoki , J. Konrad , P. M. Kouch , H. Kubo , J. Kushida , M. Láinez , A. Lamastra , E. Lindfors , S. Lombardi , F. Longo , R. López-Coto , M. López-Moya , A. López-Oramas , S. Loporchio , L. Lulic , E. Lyard , P. Majumdar , M. Makariev , M. Mallamaci , G. Maneva , M. Manganaro , S. Mangano , K. Mannheim , S. Marchesi , M. Mariotti , M. Martínez , P. Maruševec , A. Mas-Aguilar , D. Mazin , S. Menchiari , J. Méndez Gallego , S. Menon , D. Miceli , J. M. Miranda , R. Mirzoyan , M. Molero González , E. Molina , H. A. Mondal , A. Moralejo , E. Moretti , T. Nakamori , C. Nanci , L. Nava , V. Neustroev , L. Nickel , M. Nievas Rosillo , C. Nigro , L. Nikolic , K. Nilsson , K. Nishijima , K. Noda , S. Nozaki , A. Okumura , J. Otero-Santos , S. Paiano , D. Paneque , R. Paoletti , J. M. Paredes , M. Peresano , M. Persic , M. Pihet , G. Pirola , F. Podobnik , P. G. Prada Moroni , E. Prandini , M. Ribó , J. Rico , C. Righi , N. Sahakyan , T. Saito , F. G. Saturni , K. Schmitz , F. Schmuckermaier , A. Sciaccaluga , G. Silvestri , A. Simongini , J. Sitarek , V. Sliusar , D. Sobczynska , A. Stamerra , J. Striškovic , D. Strom , M. Strzys , Y. Suda , H. Tajima , M. Takahashi , R. Takeishi , P. Temnikov , K. Terauchi , T. Terzic , M. Teshima , A. Tutone , S. Ubach , J. van Scherpenberg , M. Vazquez Acosta , S. Ventura , G. Verna , I. Viale , A. Vigliano , C. F. Vigorito , E. Visentin , V. Vitale , I. Vovk , R. Walter , F. Wersig , M. Will , T. Yamamoto , P. K. H. Yeung

Search for Gamma-Ray Bursts and Gravitational Wave Electromagnetic Counterparts with High Energy X-ray Telescope of \textit{Insight}-HXMT

The High Energy X-ray telescope (HE) on-board the Hard X-ray Modulation Telescope (\textit{Insight}-HXMT) can serve as a wide Field of View (FOV) gamma-ray monitor with high time resolution ($\mu$s) and large effective area (up to thousands…

High Energy Astrophysical Phenomena · Physics 2021-10-04 C. Cai , S. L. Xiong , C. K. Li , C. Z. Liu , S. N. Zhang , X. B. Li , L. M. Song , B. Li , S. Xiao , Q. B. Yi , Y. Zhu , Y. G. Zheng , W. Chen , Q. Luo , Y. Huang , X. Y. Song , H. S. Zhao , Y. Zhao , Z. Zhang , Q. C. Bu , X. L. Cao , Z. Chang , L. Chen , T. X. Chen , Y. B. Chen , Y. Chen , Y. P. Chen , W. W. Cui , Y. Y. Du , G. H. Gao , H. Gao , M. Y. Ge , Y. D. Gu , J. Guan , C. C. Guo , D. W. Han , J. Huo , S. M. Jia , W. C. Jiang , J. Jin , L. D. Kong , G. Li , T. P. Li , W. Li , X. Li , X. F. Li , Z. W. Li , X. H. Liang , J. Y. Liao , B. S. Liu , H. W. Liu , H. X. Liu , X. J. Liu , F. J. Lu , X. F. Lu , T. Luo , R. C. Ma , X. Ma , B. Meng , Y. Nang , J. Y. Nie , G. Ou , J. L. Qu , X. Q. Ren , N. Sai , L. Sun , Y. Tan , L. Tao , Y. L. Tuo , C. Wang , L. J. Wang , P. J. Wang , W. S. Wang , Y. S. Wang , X. Y. Wen , B. B. Wu , B. Y. Wu , M. Wu , G. C. Xiao , Y. P. Xu , R. J. Yang , S. Yang , Y. J. Yang , Y. R. Yang , X. J. Yang , Q. Q. Yin , Y. You , F. Zhang , H. M. Zhang , J. Zhang , P. Zhang , S. Zhang , W. C. Zhang , W. Zhang , Y. F. Zhang , Y. H. Zhang , X. F. Zhao , S. J. Zheng , D. K. Zhou

New Fermi-LAT event reconstruction reveals more high-energy gamma rays from Gamma-ray bursts

Based on the experience gained during the four and a half years of the mission, the Fermi -LAT collaboration has undertaken a comprehensive revision of the event-level analysis going under the name of Pass 8. Although it is not yet…

High Energy Astrophysical Phenomena · Physics 2015-06-16 W. B. Atwood , L. Baldini , J. Bregeon , P. Bruel , A. Chekhtman , J. Cohen-Tanugi , A. Drlica-Wagner , J. Granot , F. Longo , N. Omodei , M. Pesce-Rollins , S. Razzaque , L. S. Rochester , C. Sgro , M. Tinivella , T. L. Usher , S. Zimmer

Detectability of Long GRB Afterglows from Very High Redshifts

Gamma-ray bursts are promising tools for tracing the formation of high redshift stars, including the first generation. At very high redshifts the reverse shock emission lasts longer in the observer frame, and its importance for detection…

Astrophysics · Physics 2009-11-10 L. J. Gou , P. Meszaros , T. Abel , B. Zhang

Dependence of the GRB Lag-Luminosity Relation on Redshift in the Source Frame

The lag-luminosity relation for gamma-ray bursts (GRBs) is an anti-correlation between the time lag, tau_lag, which represents the delay between the arrival of hard and soft photons, and the isotropic peak luminosity, L. In this paper, we…

High Energy Astrophysical Phenomena · Physics 2012-03-30 Walid J. Azzam

The Emission Mechanism of Gamma-Ray Bursts: Identification via Optical-IR Slope Measurements

There is no consensus on the emission mechanism of $\gamma$-ray bursts (GRBs). A synchrotron model can produce $\gamma$-ray spectra with the empirical Band function form, from a piece-wise two-power-law electron energy distribution (2EPLS).…

High Energy Astrophysical Phenomena · Physics 2019-09-06 Bruce Grossan , Pawan Kumar , George F. Smoot

VERITAS Observation of Gamma-Ray Bursts

During its first cycle of observations, VERITAS observed several GRBs in response to broadcast alerts from the Gamma-ray bursts Coordinates Network (GCN). The GRBs were followed up and observed thereafter with typical delays of 2 to 4…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Nicola Galante

Simulations of GRB detections with the ECLAIRs telescope onboard the future SVOM mission

The soft gamma-ray telescope ECLAIRs with its Scientific Trigger Unit is in charge of detecting Gamma-Ray Bursts (GRBs) on-board the future SVOM satellite. Using the "scientific software model" (SSM), we study the efficiency of both…

Instrumentation and Methods for Astrophysics · Physics 2015-08-25 S. Antier , S. Schanne , B. Cordier , A. Gros , D. Götz , C. Lachaud

Implementation of the readout system in the UFFO Slewing Mirror Telescope

The Ultra-Fast Flash Observatory (UFFO) is a new space-based experiment to observe Gamma-Ray Bursts (GRBs). GRBs are the most luminous electromagnetic events in the universe and occur randomly in any direction. Therefore the UFFO consists…

Instrumentation and Methods for Astrophysics · Physics 2019-08-17 J. E. Kim , H. Lim , A. Jung , K. -B Ahn , H. S. Choi , Y. J. Choi , B. Grossan , I. Hermann , S. Jeong , S. -W. Kim , Y. W. Kim , J. Lee , E. V. Linder , K. W. Min , G. W. Na , J. W. Nam , K. H. Nam , M. I. Panayuk , I. H. Park , G. F. Smoot , Y. D. Suh , S. Svelitov , N. Vedenken , I. Yashin , M. H. Zhao

Observing the prompt emission of gamma-ray bursts

Gamma-ray bursts (GRBs) were first detected thanks to their prompt emission, which was the only information available for decades. In 2010, while the high-energy prompt emission remains the main tool for the detection and the first…

High Energy Astrophysical Phenomena · Physics 2015-03-19 Jean-Luc Atteia , Michel Boër

The ECLAIRs telescope onboard the SVOM mission for gamma-ray burst studies

The X- and gamma-ray telescope ECLAIRs onboard the future mission for gamma-ray burst studies SVOM (Space-based multi-band astronomical Variable Objects Monitor) is foreseen to operate in orbit from 2013 on. ECLAIRs will provide fast and…

Astrophysics · Physics 2009-11-13 Stephane Schanne

Prospects for Detecting Gamma-Ray Bursts at Very High Energies with the Cherenkov Telescope Array

We discuss the prospects for the detection of gamma-ray bursts (GRBs) by the Cherenkov Telescope Array (CTA), the next generation, ground-based facility of imaging atmospheric Cherenkov telescopes (IACTs) operating above a few tens of GeV.…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Jun Kakuwa , Kohta Murase , Kenji Toma , Susumu Inoue , Ryo Yamazaki , Kunihito Ioka

Can We Identify Lensed Gamma Ray Bursts?

A gravitationally lensed gamma-ray burst (GRB) would appear as multiple bursts with identical light curves, separated in time and differing only by the scaling of their amplitudes. However, noise may make them difficult to identify as…

Astrophysics · Physics 2009-10-22 M. A. Nowak , S. A. Grossman