Results 21 to 30 of about 140,620 (283)

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

An automated archival VLA transients survey

, 2011
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 fields.
B. Scheers, B. W. Stappers, Bannister, Bastian, Becker, Becker, Bell, Bhat, Bower, Bower, Bower, Bower, Bower, C. J. Law, Carilli, Cohen, Condon, Cordes, Croft, Davies, de Vries, Eck, Frail, Frail, Gaensler, Gal-Yam, Greisen, H. Spreeuw, Hodapp, Hopkins, Hyman, Hyman, Högbom, J. C. A. Miller-Jones, J. Masters, J. Swinbank, J. W. T. Hessels, Johnston, Jones, Kettenis, Kida, Kuniyoshi, Lazio, Lenc, Levinson, Lonsdale, M. E. Bell, M. W. Wise, Matsumura, McLaughlin, Niinuma, Niinuma, Ofek, R. A. M. J. Wijers, R. P. Fender, Rau, Rengelink, Stappers, Swinbank, van den Oord, Verheijen, Welch, White, White, Zhao   +64 more
core   +1 more source

MULTI-MESSENGER ASTRONOMY OF GRAVITATIONAL-WAVE SOURCES WITH FLEXIBLE WIDE-AREA RADIO TRANSIENT SURVEYS [PDF]

The Astrophysical Journal, 2015
We explore opportunities for multi-messenger astronomy using gravitational waves (GWs) and prompt, transient low-frequency radio emission to study highly energetic astrophysical events. We review the literature on possible sources of correlated emission of gravitational waves and radio transients, highlighting proposed mechanisms that lead to a short ...
Cregg C. Yancey, Brandon E. Bear, Bernadine Akukwe, Kevin Chen, Jayce Dowell, Jonathan D. Gough, Jonah Kanner, Michael Kavic, Kenneth Obenberger, Peter Shawhan, John H. Simonetti, Gregory B. Taylor, Jr-Wei Tsai   +12 more
openaire   +3 more sources

A powerful bursting radio source towards the Galactic Centre

, 2005
Transient astronomical sources are typically powered by compact objects and usually signify highly explosive or dynamic events. While radio astronomy has an impressive record of obtaining high time resolution observations, usually it is achieved in quite
ACS Readhead, AD Gray, AG Lyne, AJ Burgasser, AP Marscher, Craig B. Markwardt, DB Melrose, E Berger, E Berger, F Yusef-Zadeh, Farhad Yusef-Zadeh, G Bruggmann, GA Dulk, H Bradt, HA Mayer-Hasselwander, J-H Zhao, M Guedel, ME Nord, Namir E. Kassim, Paul S. Ray, RM Cutri, RP Fender, Scott D. Hyman, SD Hyman, SD Hyman, T. Joseph W. Lazio, TH Hankins, TJW Lazio, TS Bastian, TS Bastian, W Reich, WM Farrell   +31 more
core   +1 more source

GCRT J1745-3009 as a Transient White Dwarf Pulsar

, 2005
A transient radio source in the direction of the Galactic Center, GCRT J1745-3009, exhibited 5 peculiar consecutive outbursts at 0.33 GHz with a period of 77.13 minutes and a duration of ~10 minutes for each outburst.
Bing Zhang, Brinkworth C. S., Ferrario L., Janusz Gil, Jones P. B., Mestel L., Muslimov A. G., Steffen M.   +7 more
core   +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

Variable gamma-ray emission from the Be/X-ray transient A0535+26? [PDF]

, 2001
We present a study of the unidentified gamma-ray source 3EG J0542+2610. This source is spatially superposed to the supernova remnant G180.0-1.7, but its time variability makes unlikely a physical link.
Bernado, M. M. Kaufman, Combi, Jorge A., Romero, Gustavo E., Torres, Diego F.   +3 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Continued Radio Observations of the Persistent Radio Source Associated with FRB 20190520B Provide Insights into Its Origin

The Astrophysical Journal
Follow-up studies of persistent emission from fast radio burst (FRB) sources are critical for understanding their elusive emission mechanisms and the nature of their progenitors.
Arvind Balasubramanian, Mohit Bhardwaj, Shriharsh P. Tendulkar   +2 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