Results 21 to 30 of about 163,561 (298)

Discovery of the Luminous, Decades-long, Extragalactic Radio Transient FIRST J141918.9+394036 [PDF]

Astrophysical Journal, 2018
We present the discovery of a slowly evolving, extragalactic radio transient, FIRST J141918.9+394036, identified by comparing a catalog of radio sources in nearby galaxies against new observations from the Very Large Array Sky Survey.
C. Law, B. Gaensler, B. Metzger, E. Ofek, L. S. U. Berkeley, D. Institute, Toronto, Columbia, Weizmann Institute   +8 more
semanticscholar   +1 more source

Real-Time RFI Mitigation for the Apertif Radio Transient System [PDF]

2019 RFI Workshop - Coexisting with Radio Frequency Interference (RFI), 2019
Current and upcoming radio telescopes are being designed with increasing sensitivity to detect new and mysterious radio sources of astrophysical origin.
A. Sclocco, D. Vohl, R. V. Nieuwpoort
semanticscholar   +1 more source

Closing the Net on Transient Sources of Ultrahigh-energy Cosmic Rays [PDF]

Astrophysical Journal
The arrival directions of ultrahigh-energy cosmic rays (UHECRs) observed above 4 × 1019 eV provide evidence of localized excesses that are key to identifying their sources.
S. Marafico, J. Biteau, A. Condorelli, O. Deligny, J. Bregeon   +4 more
semanticscholar   +1 more source

The FAST Galactic Plane Pulsar Snapshot Survey. II. Discovery of 76 Galactic Rotating Radio Transients and the Enigma of RRATs [PDF]

Research in Astronomy and Astrophysics, 2023
We have carried out the Galactic Plane Pulsar Snapshot (GPPS) survey by using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), the most sensitive systematic pulsar survey in the Galactic plane.
D. Zhou, Jinlin Han, Jun Xu, Chen Wang, Pengfei Wang, Tao Wang, W. Jing, Xue Chen, W. Su, Yisheng Yan, Hyoyin Gan, P. Jiang, Jinghai Sun, Hong-Guang Wang, Na Wang, Shuang Wang, Renxin Xu, X. You   +17 more
semanticscholar   +1 more source

Subarcminute Localization of 13 Repeating Fast Radio Bursts Detected by CHIME/FRB

The Astrophysical Journal, 2023
We report on improved sky localizations of 13 repeating fast radio bursts (FRBs) discovered by CHIME/FRB via the use of interferometric techniques on channelized voltages from the telescope.
Daniele Michilli, Mohit Bhardwaj, Charanjot Brar, B. M. Gaensler, Victoria M. Kaspi, Aida Kirichenko, Kiyoshi W. Masui, Ryan Mckinven, Cherry Ng, Chitrang Patel, Ketan R. Sand, Paul Scholz, Kaitlyn Shin, Seth R. Siegel, Ingrid Stairs, Tomas Cassanelli, Amanda M. Cook, Matt Dobbs, Fengqiu Adam Dong, Emmanuel Fonseca, Adaeze Ibik, Jane Kaczmarek, Calvin Leung, Aaron B. Pearlman, Emily Petroff, Ziggy Pleunis, Masoud Rafiei-Ravandi, Pranav Sanghavi, J. Richard Shaw, Shriharsh P. Tendulkar   +29 more
doaj   +1 more source

Parkes Transient Events. I. Database of Single Pulses, Initial Results, and Missing Fast Radio Bursts [PDF]

Astrophysical Journal Supplement Series, 2020
A large number of observations from the Parkes 64 m diameter radio telescope, recorded with high time resolution, are publicly available. We have reprocessed all of the observations obtained during the first four years (from 1997–2001) of the Parkes ...
S. Zhang, G. Hobbs, C. Russell, L. Toomey, S. Dai, J. Dempsey, R. Manchester, S. Johnston, L. Staveley-Smith, Xin-ji Wu, Di Li, Y.Y. Yang, S.-Q. Wang, H. Qiu, R. Luo, C. Wang, Chengmo Zhang, Linhao Zhang, R. Mandow   +18 more
semanticscholar   +1 more source

Limits on Simultaneous and Delayed Optical Emission from Well-localized Fast Radio Bursts

The Astrophysical Journal Letters, 2023
We present the largest compilation to date of optical observations during and following fast radio bursts (FRBs). The data set includes our dedicated simultaneous and follow-up observations, as well as serendipitous archival survey observations, for a ...
Daichi Hiramatsu, Edo Berger, Brian D. Metzger, Sebastian Gomez, Allyson Bieryla, Iair Arcavi, D. Andrew Howell, Ryan Mckinven, Nozomu Tominaga   +8 more
doaj   +1 more source

A Matched Filter Technique for Slow Radio Transient Detection and First Demonstration with the Murchison Widefield Array [PDF]

, 2017
Many astronomical sources produce transient phenomena at radio frequencies, but the transient sky at low frequencies (
L. Feng, R. Vaulin, J. Hewitt, R. Remillard, D. Kaplan, T. Murphy, N. Kudryavtseva, P. Hancock, G. Bernardi, J. Bowman, F. Briggs, R. Cappallo, A. A. Deshpande, B. Gaensler, L. Greenhill, B. Hazelton, M. Johnston-Hollitt, C. Lonsdale, S. McWhirter, D. Mitchell, M. Morales, E. Morgan, D. Oberoi, S. Ord, T. Prabu, N. Shankar, K. Srivani, R. Subrahmanyan, S. Tingay, R. Wayth, R. Webster, A. Williams, C. Williams   +32 more
semanticscholar   +1 more source

Frequency-dependent polarization of repeating fast radio bursts—implications for their origin [PDF]

Science, 2022
The polarization of fast radio bursts (FRBs), which are bright astronomical transient phenomena, contains information about their environments. Using wide-band observations with two telescopes, we report polarization measurements of five repeating FRBs ...
Yi Feng, Di Li, Yuanpei Yang, Yongkun Zhang, Weiwei Zhu, Bing Zhang, Wenbin Lu, Pei Wang, S. Dai, R. Lynch, Jumei Yao, Jinchen Jiang, J. Niu, D. Zhou, Heng Xu, C. Miao, C. Niu, L. Meng, L. Qian, Chaowei Tsai, Bojun Wang, M. Xue, Y. Yue, M. Yuan, Songbo Zhang, Lei Zhang   +25 more
semanticscholar   +1 more source

An Injection System for the CHIME/FRB Experiment

The Astronomical Journal, 2023
Dedicated surveys searching for fast radio bursts (FRBs) are subject to selection effects that bias the observed population of events. Software injection systems are one method of correcting for these biases by injecting a mock population of synthetic ...
Marcus Merryfield, Shriharsh P. Tendulkar, Kaitlyn Shin, Bridget Andersen, Alexander Josephy, Deborah Good, Fengqiu Adam Dong, Kiyoshi W. Masui, Dustin Lang, Moritz Münchmeyer, Charanjot Brar, Tomas Cassanelli, Matt Dobbs, Emmanuel Fonseca, Victoria M. Kaspi, Juan Mena-Parra, Ziggy Pleunis, Masoud Rafiei-Ravandi, Ketan R. Sand, Paul Scholz, Kendrick Smith, Ingrid H. Stairs   +21 more
doaj   +1 more source