Results 31 to 40 of about 163,561 (298)

A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107 5907 [PDF]

, 2015
We use observations from the Boolardy Engineering Test Array (BETA) of the Australian Square Kilometre Array Pathfinder (ASKAP) telescope to search for transient radio sources in the field around the intermittent pulsar PSR J1107 5907.
G. Hobbs, I. Heywood, M. E. Bell, M. Kerr, A. Rowlinson, S. Johnston, R. M. Shannon, M. Voronkov, C. Ward, J. Banyer, P. Hancock, T. Murphy, J. R. Allison, S. Amy, L. Ball,  K. Bannister, D. Bock, D. Brodrick, M. Brothers, A. Brown, J. Bunton, J. Chapman, A. Chippendale, Y. Chung, D. DeBoer, P. Diamond, P. G. Edwards, R. Ekers, R. Ferris, R. Forsyth, R. Gough, A. Grancea, N. Gupta, L. Harvey-Smith, S. Hay, D. Hayman, A. Hotan, S. Hoyle, B. Humphreys, B. Indermuehle, C. Jacka, C. Jackson, S. Jackson, K. Jeganathan, J. Joseph, R. Kendall, D. Kiraly, B. Koribalski, M. Leach, E. Lenc, A. Macleod, S. Mader, M. Marquarding, J. Marvil, N. McClure-Griffiths, D. McConnell, P. Mirtschin, S. Neuhold, A. Ng, R. Norris, J. O'Sullivan, S. Pearce, C. Phillips, A. Popping, R. Qiao, J. Reynolds, P. Roberts, R. Sault, A. Schinckel, P. Serra, R. Shaw, T. W. Shimwell, M. Storey, A. Sweetnam, A. Tzioumis, T. Westmeier, M. Whiting, C. Wilson   +77 more
semanticscholar   +1 more source

New methods to constrain the radio transient rate: results from a survey of four fields with LOFAR. [PDF]

Monthly notices of the Royal Astronomical Society, 2014
We report on the results of a search for radio transients between 115 and 190 MHz with the LOw-Frequency ARray (LOFAR). Four fields have been monitored with cadences between 15 min and several months.
D. Carbone, A. V. D. Horst, R. Wijers, J. Swinbank, A. Rowlinson, J. Broderick, Y. Cendes, A. Stewart, M. Bell, R. Breton, S. Corbel, J. Eislöffel, R. Fender, J. Grießmeier, J. Hessels, P. Jonker, M. Kramer, C. Law, J. Miller-Jones, M. Piętka, L. Scheers, B. Stappers, J. V. Leeuwen, R. Wijnands, M. Wise, P. Zarka   +25 more
semanticscholar   +1 more source

A CHIME/FRB Study of Burst Rate and Morphological Evolution of the Periodically Repeating FRB 20180916B

The Astrophysical Journal, 2023
FRB 20180916B is a repeating fast radio burst (FRB) with a 16.3 day periodicity in its activity. In this study, we present morphological properties of 60 FRB 20180916B bursts detected by CHIME/FRB between 2018 August and 2021 December.
Ketan R. Sand, Daniela Breitman, Daniele Michilli, Victoria M. Kaspi, Pragya Chawla, Emmanuel Fonseca, Ryan Mckinven, Kenzie Nimmo, Ziggy Pleunis, Kaitlyn Shin, Bridget C. Andersen, Mohit Bhardwaj, P. J. Boyle, Charanjot Brar, Tomas Cassanelli, Amanda M. Cook, Alice P. Curtin, Fengqiu Adam Dong, Gwendolyn M. Eadie, B. M. Gaensler, Jane Kaczmarek, Adam Lanman, Calvin Leung, Kiyoshi W. Masui, Mubdi Rahman, Ayush Pandhi, Aaron B. Pearlman, Emily Petroff, Masoud Rafiei-Ravandi, Paul Scholz, Vishwangi Shah, Kendrick Smith, Ingrid Stairs, David C. Stenning   +33 more
doaj   +1 more source

Inferring the Energy and Distance Distributions of Fast Radio Bursts Using the First CHIME/FRB Catalog

The Astrophysical Journal, 2023
Fast radio bursts (FRBs) are brief, energetic, typically extragalactic flashes of radio emission whose progenitors are largely unknown. Although studying the FRB population is essential for understanding how these astrophysical phenomena occur, such ...
Kaitlyn Shin, Kiyoshi W. Masui, Mohit Bhardwaj, Tomas Cassanelli, Pragya Chawla, Matt Dobbs, Fengqiu Adam Dong, Emmanuel Fonseca, B. M. Gaensler, Antonio Herrera-Martín, Jane Kaczmarek, Victoria Kaspi, Calvin Leung, Marcus Merryfield, Daniele Michilli, Moritz Münchmeyer, Aaron B. Pearlman, Masoud Rafiei-Ravandi, Kendrick Smith, Ingrid Stairs, Shriharsh P. Tendulkar   +20 more
doaj   +1 more source

Temporal and Spectral Properties of the Persistent Radio Source Associated with FRB 20190520B with the VLA

The Astrophysical Journal, 2023
Among more than 800 known fast radio bursts (FRBs), only two, namely FRB 20121102A and FRB 20190520B, are confirmed to be associated with persistent radio sources (PRSs).
Xian Zhang, Wenfei Yu, Casey Law, Di Li, Shami Chatterjee, Paul Demorest, Zhen Yan, Chenhui Niu, Kshitij Aggarwal, Reshma Anna-Thomas, Sarah Burke-Spolaor, Liam Connor, Chao-Wei Tsai, Weiwei Zhu, Gan Luo   +14 more
doaj   +1 more source

An insight into the extragalactic transient and variable microJy radio sky across multiple decades [PDF]

Monthly notices of the Royal Astronomical Society, 2019
The mJy variable extragalactic radio sky is known to be broadly non-changing with approximately $3{{\ \rm per\ cent}}$ of persistent radio sources exhibiting variability that is largely active galactic nucleus-related (AGN). In the faint (
J. Radcliffe, R. Beswick, A. Thomson, M. Garrett, P. Barthel, T. Muxlow   +5 more
semanticscholar   +1 more source

A Search for Persistent Radio Sources toward Repeating Fast Radio Bursts Discovered by CHIME/FRB

The Astrophysical Journal
The identification of persistent radio sources (PRSs) coincident with two repeating fast radio bursts (FRBs) supports FRB theories requiring a compact central engine.
Adaeze L. Ibik, Maria R. Drout, B. M. Gaensler, Paul Scholz, Navin Sridhar, Ben Margalit, T. E. Clarke, Casey J. Law, Shriharsh P. Tendulkar, Daniele Michilli, Tarraneh Eftekhari, Mohit Bhardwaj, Sarah Burke-Spolaor, Shami Chatterjee, Amanda M. Cook, Jason W. T. Hessels, Franz Kirsten, Ronniy C. Joseph, Victoria M. Kaspi, Mattias Lazda, Kiyoshi W. Masui, Kenzie Nimmo, Ayush Pandhi, Aaron B. Pearlman, Ziggy Pleunis, Masoud Rafiei-Ravandi, Kaitlyn Shin, Kendrick M. Smith   +27 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

A Possible Periodic Rotation Measure Evolution in the Repeating FRB 20220529

The Astrophysical Journal Letters
Fast radio bursts (FRBs) are mysterious millisecond-duration radio transients of extragalactic origin. Some of them repeat, while others apparently do not.
Yi-Fang Liang, Ye Li, Zhen-Fan Tang, Xuan Yang, Song-Bo Zhang, Yuan-Pei Yang, Fa-Yin Wang, Bao Wang, Di Xiao, Qing Zhao, Jun-Jie Wei, Jin-Jun Geng, Jia-Rui Niu, Jun-Shuo Zhang, Guo Chen, Min Fang, Xue-Feng Wu, Zi-Gao Dai, Wei-Wei Zhu, Peng Jiang, Bing Zhang   +20 more
doaj   +1 more source

Simultaneous Localization of Multiple Unknown and Transient Radio Sources Using a Mobile Robot

IEEE Transactions on robotics, 2012
Dezhen Song, Chang-Young Kim, J. Yi
semanticscholar   +2 more sources