The host galaxies and progenitors of fast radio bursts localized with the Australian square kilometre Array Pathfinder
Author
dc.contributor.author
Bhandari, Shivani
Author
dc.contributor.author
Sadler, Elaine M.
Author
dc.contributor.author
Prochaska, J. Xavier
Author
dc.contributor.author
Simha, Sunil
Author
dc.contributor.author
Ryder, Stuart D.
Author
dc.contributor.author
Marnoch, Lachlan
Author
dc.contributor.author
Bannister, Keith W.
Author
dc.contributor.author
Macquart, Jean-Pierre
Author
dc.contributor.author
Flynn, Chris
Author
dc.contributor.author
Shannon, Ryan M.
Author
dc.contributor.author
Tejos, Nicolás
Author
dc.contributor.author
Corro Guerra, Felipe
Author
dc.contributor.author
Day, Cherie K.
Author
dc.contributor.author
Deller, Adam T.
Author
dc.contributor.author
Ekers, Ron
Author
dc.contributor.author
López, Sebastián
Author
dc.contributor.author
Mahony, Elizabeth K.
Author
dc.contributor.author
Nuñez, Consuelo
Author
dc.contributor.author
Phillips, Chris
Admission date
dc.date.accessioned
2020-07-21T14:42:53Z
Available date
dc.date.available
2020-07-21T14:42:53Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
The Astrophysical Journal Letters, 895:L37 (12pp), 2020 June 1
es_ES
Identifier
dc.identifier.other
10.3847/2041-8213/ab672e
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/176050
Abstract
dc.description.abstract
The Australian SKA Pathfinder (ASKAP) telescope has started to localize fast radio bursts (FRBs) to arcsecond accuracy from the detection of a single pulse, allowing their host galaxies to be reliably identified. We discuss the global properties of the host galaxies of the first four FRBs localized by ASKAP, which lie in the redshift range 0.11 z < 0.48. All four are massive galaxies (log(M-*/M) similar to 9.4-10.4) with modest star formation rates of up to 2 M yr(-1)-very different to the host galaxy of the first repeating FRB 121102, which is a dwarf galaxy with a high specific star formation rate. The FRBs localized by ASKAP typically lie in the outskirts of their host galaxies, which appears to rule out FRB progenitor models that invoke active galactic nuclei or free-floating cosmic strings. The stellar population seen in these host galaxies also disfavors models in which all FRBs arise from young magnetars produced by superluminous supernovae, as proposed for the progenitor of FRB 121102. A range of other progenitor models (including compact-object mergers and magnetars arising from normal core-collapse supernovae) remain plausible.
es_ES
Patrocinador
dc.description.sponsorship
European Southern Observatory
0102.A-0450(A)
0103.A-0101(B)
Australian Research Council
DP180100857
Australian Research Council
FT150100415
Australian Research Council
FL150100148
CE170100004
PUCV/VRIEA project
039.395/2019
National Science Foundation (NSF)
AST-1911140
Australian Government
Australian Government
Department of Industry, Innovation and Science
Government of Western Australia
Science and Industry Endowment Fund
W.M. Keck Foundation
Las Campanas Observatory, Chile
CN2019A-36
LCOGT network
CN2019A-39/CLN2019A-002
CN2019B-93/CLN2019B-001
Gemini Observatory
GS-2018B-Q-133
UCh/VID-ENL18/18
FONDECYT 1191232