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The Green Bank Telescope (GBT) is the largest fully steerable radio telescope in the world and is one of our greatest tools for discovering and studying radio pulsars. Over the last decade, the GBT has successfully found over 100 new…

Fast Radio Bursts (FRBs) are apparently one-time, relatively bright radio pulses that have been observed in recent years. The origin of FRBs is currently unknown and many instruments are being built to detect more of these bursts to better…

The gravitational wave GW170817 from a binary neutron star merger and the simultaneous electromagnetic detection of the GRB170817A by Fermi Gamma-Ray Space Telescope, opened a new era in the multi-messenger astronomy. Furthermore, the GRBs…

High Energy Astrophysical Phenomena · Physics 2024-07-16 Alessandro Drago , Simone Bini , Mariangela Cestelli Guidi , Augusto Marcelli , Valerio Bocci , Emanuele Pace

No transient electromagnetic emission has yet been found in association to fast radio bursts (FRBs), the only possible exception (3sigma confidence) being the putative gamma-ray signal detected in Swift/BAT data in the energy band 15-150…

High Energy Astrophysical Phenomena · Physics 2019-09-11 C. Guidorzi , M. Marongiu , R. Martone , L. Amati , F. Frontera , L. Nicastro , M. Orlandini , R. Margutti , E. Virgilli

Time domain radio astronomy observing campaigns frequently generate large volumes of data. Our goal is to develop automated methods that can identify events of interest buried within the larger data stream. The V-FASTR fast transient system…

Instrumentation and Methods for Astrophysics · Physics 2016-06-29 Kiri L. Wagstaff , Benyang Tang , David R. Thompson , Shakeh Khudikyan , Jane Wyngaard , Adam T. Deller , Divya Palaniswamy , Steven J. Tingay , Randall B. Wayth

We report on the lowest-frequency detection to date of three bursts from the fast radio burst FRB 180916, observed at 328 MHz with the Sardinia Radio Telescope (SRT). The SRT observed the periodic repeater FRB 180916 for five days from 2020…

We use the precision measurements of the arrival time differences of the same fast radio burst (FRB) source along multiple sightlines to measure the primordial power spectrum and Non-Gaussianities. The anticipated experiment requires a…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-16 Zhiyao Lu , Lian-Tao Wang , Huangyu Xiao

As a backend to the first station of the Long Wavelength Array (LWA1) the Prototype All Sky Imager (PASI) has been imaging the sky $>$ -26$^{\circ}$ declination during 34 Gamma Ray Bursts (GRBs) between January 2012 and May 2013. Using this…

High Energy Astrophysical Phenomena · Physics 2015-06-19 K. S. Obenberger , J. M. Hartman , G. B. Taylor , J. Craig , J. Dowell , J. F. Helmboldt , P. A. Henning , F. K. Schinzel , T. L. Wilson

The Haystack 37-meter telescope was used in a pilot project in May 1995 to observe GRB error boxes at 23~GHz. Seven BATSE error boxes and two IPN arcs were scanned by driving the beam of the telescope rapidly across their area. For the…

Fast Radio Bursts (FRBs) are short-duration radio transients with mysterious origins. Since its uncertainty, there are very few FRBs that are observed by different instruments, simultaneously. This study presents a detailed analysis of a…

High Energy Astrophysical Phenomena · Physics 2025-07-24 Yuhao Zhu , Chenhui Niu , Shi Dai , Di Li , Pei Wang , Yi Feng , Jingwen Wu , Yongkun Zhang , Xianghan Cui , Junshuo Zhang , Jinhuang Cao

We conduct 24.4~fps optical observations of repeating Fast Radio Burst (FRB) 20190520B using Tomo-e Gozen, a high-speed CMOS camera mounted on the Kiso 105-cm Schmidt telescope, simultaneously with radio observations carried out using the…

The origin(s) of Fast Radio Bursts (FRBs), mysterious radio bursts coming from extragalactic distances, remains unknown. Multi-wavelength observations are arguably the only way to answer this question unambiguously. We attempt to detect…

High Energy Astrophysical Phenomena · Physics 2025-11-26 C. Gouiffés , C. Ng , I. Cognard , M. Dennefeld , N. Devaney , V. S. Dhillon , J. Guilet , P. Laurent , E. Le Floc'h , A. J. Maury , K. Nimmo , A. Shearer , L. G. Spitler , P. Zarka , S. Corbel

Among several dozen known repeating Fast radio bursts (FRBs), those precisely localized offer the best opportunities to explore their multi-wavelength counterparts, which are key to uncovering their origins. Here we report our X-ray,…

High Energy Astrophysical Phenomena · Physics 2025-03-20 Zhen Yan , Wenfei Yu , Kim L. Page , Jie Lin , Di Li , Chenhui Niu , Casey Law , Bing Zhang , Shami Chatterjee , Xian Zhang , Reshma Anna-Thomas

FRB 121102, the first-known repeating fast radio burst (FRB) source, is associated with a dwarf host galaxy and compact, persistent radio source. In an effort to find other repeating FRBs, FIRST J141918.9+394036 (hereafter FIRST J1419+3940)…

High Energy Astrophysical Phenomena · Physics 2020-04-10 Kenzie Nimmo , Vishal Gajjar , Jason W. T. Hessels , Casey J. Law , Ryan S. Lynch , Andrew D. Seymour , Laura G. Spitler

We present 11 detections of FRB 121102 in ~3 hours of observations during its 'active' period on the 10th of September 2019. The detections were made using the newly deployed MeerTRAP system and single pulse detection pipeline at the…

We conducted a drift-scan observation campaign using the 305-m Arecibo telescope in January and March 2020 when the observatory was temporarily closed during the intense earthquakes and the initial outbreak of the COVID-19 pandemic,…

We have searched for weak fast radio burst (FRB) events using a database containing 568,736,756 transient events detected using the Parkes radio telescope between 1997 and 2001. In order to classify these pulses, and to identify likely FRB…

In this paper we develop a model for fast radio bursts (FRBs) based on triggered superradiance (SR) and apply it to previously published data of FRB 110220 and FRB 121102. We show how a young pulsar located at ~100 pc or more from an SR/FRB…

High Energy Astrophysical Phenomena · Physics 2018-11-28 Martin Houde , Fereshteh Rajabi , B. M. Gaensler , A. Mathews , Victor Tranchant

The Parkes Pulsar Timing Array (PPTA) project monitors two dozen millisecond pulsars (MSPs) in order to undertake a variety of fundamental physics experiments using the Parkes 64m radio telescope. Since June 2017 we have been undertaking…