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Related papers: Detection of fast radio transients with multiple s…

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Recent discoveries of dispersed, non-periodic impulsive radio signals with single-dish radio telescopes have sparked significant interest in exploring the relatively uncharted space of fast transient radio signals. Here we describe V-FASTR,…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 Randall B. Wayth , Walter F. Brisken , Adam T. Deller , Walid A. Majid , David R. Thompson , Steven J. Tingay , Kiri L. Wagstaff

A new generation of observational science instruments is dramatically increasing collected data volumes in a range of fields. These instruments include the Square Kilometre Array (SKA), Large Synoptic Survey Telescope (LSST), terrestrial…

Instrumentation and Methods for Astrophysics · Physics 2013-07-24 David R. Thompson , Sarah Burke-Spolaor , Adam T. Deller , Walid A. Majid , Divya Palaniswamy , Steven J. Tingay , Kiri L. Wagstaff , Randall B. Wayth

We present the first results from the V-FASTR experiment, a commensal search for fast transient radio bursts using the Very Long Baseline Array (VLBA). V-FASTR is unique in that the widely spaced VLBA antennas provide a discriminant against…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Randall B. Wayth , Steven J. Tingay , Adam T. Deller , Walter F. Brisken , David R. Thompson , Kiri L. Wagstaff , Walid A. Majid

The technique of Very Long Baseline Interferometry (VLBI) can provide accurate localization and unique physical information about radio transients. However, it is still underutilized due to the inherent difficulties of VLBI data analysis…

Instrumentation and Methods for Astrophysics · Physics 2018-03-09 K. V. Sokolovsky , M. Giroletti , S. Corbel , G. E. Anderson , B. W. Stappers

In this paper we present the results of a survey for radio transients using data obtained from the Very Large Array archive. We have reduced, using a pipeline procedure, 5037 observations of the most common pointings - i.e. the calibrator…

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 define a framework for determining constraints on the detection rate of fast transient events from a population of underlying sources, with a view to incorporating beam shape, frequency effects, scattering effects, and detection…

We report on the first millisecond timescale radio interferometric search for the new class of transient known as fast radio bursts (FRBs). We used the Very Large Array (VLA) for a 166-hour, millisecond imaging campaign to detect and…

We demonstrate a new technique for detecting radio transients based on interferometric closure quantities. The technique uses the bispectrum, the product of visibilities around a closed-loop of baselines of an interferometer. The bispectrum…

Instrumentation and Methods for Astrophysics · Physics 2015-06-03 Casey J. Law , Geoffrey C. Bower

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

Exploration of the time-domain radio sky has huge potential for advancing our knowledge of the dynamic universe. Past surveys have discovered large numbers of pulsars, rotating radio transients and other transient radio phenomena; however,…

Instrumentation and Methods for Astrophysics · Physics 2011-12-02 Benjamin R. Barsdell , Matthew Bailes , David G. Barnes , Christopher J. Fluke

We present a methodology for automated real-time analysis of a radio image data stream with the goal to find transient sources. Contrary to previous works, the transients we are interested in occur on a time-scale where dispersion starts to…

Instrumentation and Methods for Astrophysics · Physics 2021-08-09 David Ruhe , Mark Kuiack , Antonia Rowlinson , Ralph Wijers , Patrick Forré

With the advent of powerful telescopes such as the Square Kilometer Array and the Vera C. Rubin Observatory, we are entering an era of multiwavelength transient astronomy that will lead to a dramatic increase in data volume. Machine…

Instrumentation and Methods for Astrophysics · Physics 2021-03-09 K. Sooknunan , M. Lochner , Bruce A. Bassett , H. V. Peiris , R. Fender , A. J. Stewart , M. Pietka , P. A. Woudt , J. D. McEwen , O. Lahav

Next-generation radio arrays, including the Square Kilometre Array (SKA) and its pathfinders, will open up new avenues for exciting transient science at radio wavelengths. Their innovative designs, comprising a large number of small…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 N. D. R. Bhat , J. N. Chengalur , P. J. Cox , Y. Gupta , J. Prasad , J. Roy , M. Bailes , S. Burke-Spolaor , S. S. Kudale , W. van Straten

Radio interferometers have the ability to precisely localize and better characterize the properties of sources. This ability is having a powerful impact on the study of fast radio transients, where a few milliseconds of data is enough to…

Instrumentation and Methods for Astrophysics · Physics 2018-05-23 C. J. Law , G. C. Bower , S. Burke-Spolaor , B. J. Butler , P. Demorest , A. Halle , S. Khudikyan , T. J. W. Lazio , M. Pokorny , J. Robnett , M. Rupen

We report the results of a successful 12 hour 22 GHz VLBI experiment using a heterogeneous network that includes radio telescopes of the Long Baseline Array (LBA) in Australia and several VLBI stations that regularly observe in geodetic…

Isolated, short dispersed pulses of radio emission of unknown origin have been reported and there is strong interest in wide-field, sensitive searches for such events. To achieve high sensitivity, large collecting area is needed and…

Instrumentation and Methods for Astrophysics · Physics 2014-03-12 Nathan Clarke , Larry D'Addario , Robert Navarro , Joseph Trinh

With the high sensitivity and wide-field coverage of the Square Kilometre Array (SKA), large samples of explosive transients are expected to be discovered. Radio wavelengths, especially in commensal survey mode, are particularly well suited…

High Energy Astrophysical Phenomena · Physics 2016-11-23 Poonam Chandra , G. C. Anupama , K. G. Arun , Shabnam Iyyani , Kuntal Misra , D. Narasimha , Alak Ray , L. Resmi , Subhashis Roy , Firoza Sutaria

The impending era of wide-field radio surveys has the potential to revolutionize our understanding of astrophysical transients. Here we evaluate the prospects of a wide range of planned and hypothetical radio surveys using the properties…

High Energy Astrophysical Phenomena · Physics 2015-02-06 Brian D. Metzger , Peter K. G. Williams , Edo Berger

Recently, there have been reports of six bright, dispersed bursts of coherent radio emission found in pulsar surveys with the Parkes Multi-beam Receiver. Not much is known about the progenitors of these bursts, but they are…

High Energy Astrophysical Phenomena · Physics 2013-09-10 T. E. Hassall , E. F. Keane , R. P. Fender
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