Results 41 to 50 of about 139,917 (298)

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

A Search for Pulsars in Quiescent Soft X-Ray Transients. I [PDF]

, 2003
We have carried out a deep search at 1.4 GHz for radio pulsed emission from six soft X-ray transient sources observed during their X-ray quiescent phase. The commonly accepted model for the formation of the millisecond radio pulsars predicts the presence
Burderi L, Burgay M, Camilo F, Campana S, D'Amico N, Lyne AG, Manchester RN, Possenti A   +7 more
core   +3 more sources

The Excess Radio Background and Fast Radio Transients

, 2015
In the last few years ARCADE 2, combined with older experiments, has detected an additional radio background, measured as a temperature and ranging in frequency from 22 MHz to 10 GHz, not accounted for by known radio sources and the cosmic microwave ...
Kehayias, John, Kephart, Thomas W., Weiler, Thomas J.   +2 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

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

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 rotating radio transients and fast radio bursts in the Parkes high-latitude pulsar survey [PDF]

, 2015
Discoveries of rotating radio transients and fast radio bursts (FRBs) in pulsar surveys suggest that more of such transient sources await discovery in archival data sets.
Bates, S. D., Lorimer, D. R., McLaughlin, M. A., McMann, N., Rajwade, K., Rane, A.   +5 more
core   +3 more sources

A New Radio Detection of the Transient Bursting Source GCRT J1745−3009

The Astrophysical Journal, 2006
GCRT J1745-3009 is a transient bursting radio source located in the direction of the Galactic center, discovered by Hyman et al. in 330 MHz VLA observations from 2002 September 30-October 1. We have searched for bursting activity from GCRT J1745-3009 in nearly all of the available 330 MHz VLA observations of the Galactic center since 1989, as well as ...
Scott D. Hyman, T. Joseph W. Lazio, Subhashis Roy, Paul S. Ray, Namir E. Kassim, Jennifer L. Neureuther   +5 more
openaire   +1 more source

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