Supergiant pulses from extragalactic neutron stars
J. M. Cordes,Ira Wasserman +1 more
TLDR
In this article, the authors consider radio bursts that originate from extragalactic neutron stars (NSs) by addressing three questions about source distances: What are the physical limitations on coherent radiation at GHz frequencies? Do they permit detection at cosmological distances? How many bursts per NS are needed to produce the inferred burst rate 10 3 -10 4 sky 1 day 1?Abstract:
We consider radio bursts that originate from extragalactic neutron stars (NSs) by addressing three questions about source distances. What are the physical limitations on coherent radiation at GHz frequencies? Do they permit detection at cosmological distances? How many bursts per NS are needed to produce the inferred burst rate 10 3 -10 4 sky 1 day 1 ? The burst rate is comparable to the NS formation rate in a Hubble volume, requiring only one per NS if they are bright enough. However, radiation physics causes us to favor a closer population. More bursts per NS are then required but repeats in 10 to 100 yr could still be negligible. Bursts are modeled as sub-ns, coherent shot pulses superposed incoherently to produce msduration 1 Jy amplitudes; each shot-pulse can be much weaker than the burst amplitude, placing less restrictive requirements on the emission process. Nonetheless, single shot pulses are similar to the extreme, unresolved (< 0:4 ns) MJy shot pulse seen from the Crab pulsar, which is consistent with coherent curvature radiation emitted near the light cylinder by an almost neutral clump with net charge 10 21 e and total energy & 10 23 ergs. Bursts from Gpc distances require incoherent superposition of 10 12 d 2 shot pulses or a total energy & 10 35 d 2 erg. The energy reservoir near the light cylinder limits the detection distance to . few 100 Mpc for a fluence 1 Jy ms unless conditions are more extreme than for the Crab pulsar. Similarly, extreme single pulses from ordinary pulsars and magnetars could be detectable from throughout the Local Group and perhaps farther. Contributions to dispersion measures from galaxy clusters will be significant for some of the bursts. We discuss tests for the signatures of bursts associated with extragalactic NSs.read more
Citations
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Journal ArticleDOI
A repeating fast radio burst
Laura Spitler,Paul Scholz,Jason W. T. Hessels,Jason W. T. Hessels,Slavko Bogdanov,Adam Brazier,Fernando Camilo,Shami Chatterjee,J. M. Cordes,Fronefield Crawford,Julia Deneva,Robert D. Ferdman,Paulo C. C. Freire,Victoria M. Kaspi,P. Lazarus,R. S. Lynch,R. S. Lynch,E. Madsen,Maura McLaughlin,C. Patel,Scott M. Ransom,Andrew Seymour,Ingrid H. Stairs,Ingrid H. Stairs,Ben Stappers,J. van Leeuwen,J. van Leeuwen,Weiwei Zhu +27 more
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.
Journal ArticleDOI
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.
Journal ArticleDOI
The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales
Benito Marcote,Zsolt Paragi,Jason W. T. Hessels,Jason W. T. Hessels,A. Keimpema,H. J. van Langevelde,H. J. van Langevelde,Y. Huang,Y. Huang,Cees Bassa,Slavko Bogdanov,Geoffrey C. Bower,Sarah Burke-Spolaor,Sarah Burke-Spolaor,Bryan J. Butler,Robert M. Campbell,Shami Chatterjee,James M. Cordes,Paul Demorest,M. A. Garrett,M. A. Garrett,M. A. Garrett,Tapasi Ghosh,Victoria M. Kaspi,Casey J. Law,T. J. W. Lazio,Maura McLaughlin,Scott M. Ransom,Christopher J. Salter,P. Scholz,A. Seymour,Andrew Siemion,Andrew Siemion,Andrew Siemion,Laura Spitler,Shriharsh P. Tendulkar,Robert Wharton +36 more
TL;DR: In this paper, the authors show that a burst source associated with a low-luminosity active galactic nucleus or a young neutron star energizing a supernova remnant are the two scenarios for FRB 121102 that best match the observed data.
Journal ArticleDOI
Millisecond Magnetar Birth Connects FRB 121102 to Superluminous Supernovae and Long Duration Gamma-ray Bursts
TL;DR: In this article, the authors show that the properties of the host galaxy are consistent with those of long-duration gamma-ray bursts (LGRB) and hydrogen-poor superluminous supernovae (SLSNe-I).
Journal ArticleDOI
Fast radio bursts
TL;DR: Fast radio bursts (FRBs) as mentioned in this paper are the most common source of radio bursts and have a longer life cycle than the individual pulses from a pulsar and hence are many orders of magnitude more luminous than individual pulsars.
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