Fast radio burst source properties and curvature radiation model
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In this article, the authors used the observed properties of fast radio bursts (FRBs) and a number of general physical considerations to provide a broad-brush model for the physical properties of FRB sources and the radiation mechanism.Abstract:
We use the observed properties of fast radio bursts (FRBs) and a number of general physical considerations to provide a broad-brush model for the physical properties of FRB sources and the radiation mechanism. We show that the magnetic field in the source region should be at least 10^{14} Gauss. This strong field is required to ensure that the electrons have sufficiently high ground state Landau energy so that particle collisions, instabilities, and strong electric and magnetic fields associated with the FRB radiation do not perturb electrons' motion in the direction transverse to the magnetic field and destroy their coherent motion; coherence is required by the high observed brightness temperature of FRB radiation. The electric field in the source region required to sustain particle motion for a wave period is estimated to be of order 10^{11} esu. These requirements suggest that FRBs are produced near the surface of magnetars perhaps via forced reconnection of magnetic fields to produce episodic, repeated, outbursts. The beaming-corrected energy release in these bursts is estimated to be ~10^{36} ergs, whereas the total energy in the magnetic field is at least ~10^{45} ergs. We provide a number of predictions for this model which can be tested by future observations. One of which is that short duration FRB-like bursts should exist at much higher frequencies, possibly up to optical.read more
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A bright millisecond-duration radio burst from a Galactic magnetar
Chime,B. C. Andersen,Kevin Bandura,Mohit Bhardwaj,Akanksha Bij,M. M. Boyce,P. J. Boyle,C. Brar,T. Cassanelli,P. Chawla,T. Chen,J. F. Cliche,A. Cook,D. Cubranic,A. P. Curtin,Nolan Denman,M. A. Dobbs,F. Q. Dong,M. Fandino,Emmanuel Fonseca,Bryan Gaensler,U. Giri,Deborah C. Good,Mark Halpern,Alex S. Hill,Gary Hinshaw,C. Höfer,A. Josephy,J. W. Kania,V. M. Kaspi,T. L. Landecker,Calvin Leung,D. Z. Li,Hsiu-Hsien Lin,Kiyoshi Masui,R. Mckinven,J. Mena-Parra,M. Merryfield,B. W. Meyers,D. Michilli,N. Milutinovic,A. Mirhosseini,Moritz Münchmeyer,A. Naidu,Laura Newburgh,Cherry Ng,C. Patel,Ue-Li Pen,T. Pinsonneault-Marotte,Ziggy Pleunis,Brendan M. Quine,M. Rafiei-Ravandi,Mubdi Rahman,Scott M. Ransom,A. Renard,Pranav Sanghavi,Paul Scholz,J. R. Shaw,Kyung-Hoon Shin,Seth Siegel,Saranjit Singh,Rick Smegal,Kendrick M. Smith,Ingrid H. Stairs,C. M. Tan,Shriharsh P. Tendulkar,I. Tretyakov,Keith Vanderlinde,H. Wang,Dallas Wulf,A. V. Zwaniga +70 more
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A fast radio burst localised to a massive galaxy
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TL;DR: Use of a specially built radio interferometer shows that a non-repeating fast radio burst is localized to a few-arcsecond region containing a single massive galaxy, and is perhaps derived from an old stellar population.
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A fast radio burst localized to a massive galaxy
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References
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TL;DR: These repeat bursts with high dispersion measure and variable spectra specifically seen from the direction of FRB 121102 support an origin in a young, highly magnetized, extragalactic neutron star.
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A direct localization of a fast radio burst and its host
Shami Chatterjee,Casey J. Law,Robert Wharton,Sarah Burke-Spolaor,Sarah Burke-Spolaor,Jason W. T. Hessels,Jason W. T. Hessels,Geoffrey C. Bower,James M. Cordes,Shriharsh P. Tendulkar,C. G. Bassa,Paul Demorest,Bryan J. Butler,Andrew Seymour,P. Scholz,Matthew W. Abruzzo,Slavko Bogdanov,V. M. Kaspi,A. Keimpema,T. J. W. Lazio,Benito Marcote,Maura McLaughlin,Zsolt Paragi,Scott M. Ransom,Michael P. Rupen,Laura Spitler,H. J. van Langevelde,H. J. van Langevelde +27 more
TL;DR: The authors' observations are inconsistent with the fast radio burst having a Galactic origin or its source being located within a prominent star-forming galaxy, and the source appears to be co-located with a low-luminosity active galactic nucleus or a previously unknown type of extragalactic source.
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