Magnetars are highly magnetized young neutron stars that occasionally produce
enormous bursts and flares of X-rays and gamma-rays. Of the approximately
thirty magnetars currently known in our Galaxy and Magellanic Clouds, five have
exhibited transient radio pulsations. Fast radio bursts (FRBs) are
millisecond-duration bursts of radio waves arriving from cosmological
distances. Some have been seen to repeat. A leading model for repeating FRBs is
that they are extragalactic magnetars, powered by their intense magnetic
fields. However, a challenge to this model has been that FRBs must have radio
luminosities many orders of magnitude larger than those seen from known
Galactic magnetars. Here we report the detection of an extremely intense radio
burst from the Galactic magnetar SGR 1935+2154 using the Canadian Hydrogen
Intensity Mapping Experiment (CHIME) FRB project. The fluence of this
two-component bright radio burst and the estimated distance to SGR 1935+2154
together imply a 400-800 MHz burst energy of $3 10^34$ erg, which
is three orders of magnitude brighter than those of any radio-emitting magnetar
detected thus far. Such a burst coming from a nearby galaxy would be
indistinguishable from a typical FRB. This event thus bridges a large fraction
of the radio energy gap between the population of Galactic magnetars and FRBs,
strongly supporting the notion that magnetars are the origin of at least some
FRBs.
Description
A bright millisecond-duration radio burst from a Galactic magnetar
%0 Generic
%1 collaboration2020bright
%A Collaboration, The CHIME/FRB
%A :,
%A Andersen, B. C.
%A Bandura, K. M.
%A Bhardwaj, M.
%A Bij, A.
%A Boyce, M. M.
%A Boyle, P. J.
%A Brar, C.
%A Cassanelli, T.
%A Chawla, P.
%A Chen, T.
%A Cliche, J. F.
%A Cook, A.
%A Cubranic, D.
%A Curtin, A. P.
%A Denman, N. T.
%A Dobbs, M.
%A Dong, F. Q.
%A Fandino, M.
%A Fonseca, E.
%A Gaensler, B. M.
%A Giri, U.
%A Good, D. C.
%A Halpern, M.
%A Hill, A. S.
%A Hinshaw, G. F.
%A Höfer, C.
%A Josephy, A.
%A Kania, J. W.
%A Kaspi, V. M.
%A Landecker, T. L.
%A Leung, C.
%A Li, D. Z.
%A Lin, H. H.
%A Masui, K. W.
%A Mckinven, R.
%A Mena-Parra, J.
%A Merryfield, M.
%A Meyers, B. W.
%A Michilli, D.
%A Milutinovic, N.
%A Mirhosseini, A.
%A Münchmeyer, M.
%A Naidu, A.
%A Newburgh, L. B.
%A Ng, C.
%A Patel, C.
%A Pen, U. L.
%A Pinsonneault-Marotte, T.
%A Pleunis, Z.
%A Quine, B. M.
%A Rafiei-Ravandi, M.
%A Rahman, M.
%A Ransom, S. M.
%A Renard, A.
%A Sanghavi, P.
%A Scholz, P.
%A Shaw, J. R.
%A Shin, K.
%A Siegel, S. R.
%A Singh, S.
%A Smegal, R. J.
%A Smith, K. M.
%A Stairs, I. H.
%A Tan, C. M.
%A Tendulkar, S. P.
%A Tretyakov, I.
%A Vanderlinde, K.
%A Wang, H.
%A Wulf, D.
%A Zwaniga, A. V.
%D 2020
%K tifr
%T A bright millisecond-duration radio burst from a Galactic magnetar
%U http://arxiv.org/abs/2005.10324
%X Magnetars are highly magnetized young neutron stars that occasionally produce
enormous bursts and flares of X-rays and gamma-rays. Of the approximately
thirty magnetars currently known in our Galaxy and Magellanic Clouds, five have
exhibited transient radio pulsations. Fast radio bursts (FRBs) are
millisecond-duration bursts of radio waves arriving from cosmological
distances. Some have been seen to repeat. A leading model for repeating FRBs is
that they are extragalactic magnetars, powered by their intense magnetic
fields. However, a challenge to this model has been that FRBs must have radio
luminosities many orders of magnitude larger than those seen from known
Galactic magnetars. Here we report the detection of an extremely intense radio
burst from the Galactic magnetar SGR 1935+2154 using the Canadian Hydrogen
Intensity Mapping Experiment (CHIME) FRB project. The fluence of this
two-component bright radio burst and the estimated distance to SGR 1935+2154
together imply a 400-800 MHz burst energy of $3 10^34$ erg, which
is three orders of magnitude brighter than those of any radio-emitting magnetar
detected thus far. Such a burst coming from a nearby galaxy would be
indistinguishable from a typical FRB. This event thus bridges a large fraction
of the radio energy gap between the population of Galactic magnetars and FRBs,
strongly supporting the notion that magnetars are the origin of at least some
FRBs.
@misc{collaboration2020bright,
abstract = {Magnetars are highly magnetized young neutron stars that occasionally produce
enormous bursts and flares of X-rays and gamma-rays. Of the approximately
thirty magnetars currently known in our Galaxy and Magellanic Clouds, five have
exhibited transient radio pulsations. Fast radio bursts (FRBs) are
millisecond-duration bursts of radio waves arriving from cosmological
distances. Some have been seen to repeat. A leading model for repeating FRBs is
that they are extragalactic magnetars, powered by their intense magnetic
fields. However, a challenge to this model has been that FRBs must have radio
luminosities many orders of magnitude larger than those seen from known
Galactic magnetars. Here we report the detection of an extremely intense radio
burst from the Galactic magnetar SGR 1935+2154 using the Canadian Hydrogen
Intensity Mapping Experiment (CHIME) FRB project. The fluence of this
two-component bright radio burst and the estimated distance to SGR 1935+2154
together imply a 400-800 MHz burst energy of $\sim 3 \times 10^{34}$ erg, which
is three orders of magnitude brighter than those of any radio-emitting magnetar
detected thus far. Such a burst coming from a nearby galaxy would be
indistinguishable from a typical FRB. This event thus bridges a large fraction
of the radio energy gap between the population of Galactic magnetars and FRBs,
strongly supporting the notion that magnetars are the origin of at least some
FRBs.},
added-at = {2020-11-09T07:45:44.000+0100},
author = {Collaboration, The CHIME/FRB and : and Andersen, B. C. and Bandura, K. M. and Bhardwaj, M. and Bij, A. and Boyce, M. M. and Boyle, P. J. and Brar, C. and Cassanelli, T. and Chawla, P. and Chen, T. and Cliche, J. F. and Cook, A. and Cubranic, D. and Curtin, A. P. and Denman, N. T. and Dobbs, M. and Dong, F. Q. and Fandino, M. and Fonseca, E. and Gaensler, B. M. and Giri, U. and Good, D. C. and Halpern, M. and Hill, A. S. and Hinshaw, G. F. and Höfer, C. and Josephy, A. and Kania, J. W. and Kaspi, V. M. and Landecker, T. L. and Leung, C. and Li, D. Z. and Lin, H. H. and Masui, K. W. and Mckinven, R. and Mena-Parra, J. and Merryfield, M. and Meyers, B. W. and Michilli, D. and Milutinovic, N. and Mirhosseini, A. and Münchmeyer, M. and Naidu, A. and Newburgh, L. B. and Ng, C. and Patel, C. and Pen, U. L. and Pinsonneault-Marotte, T. and Pleunis, Z. and Quine, B. M. and Rafiei-Ravandi, M. and Rahman, M. and Ransom, S. M. and Renard, A. and Sanghavi, P. and Scholz, P. and Shaw, J. R. and Shin, K. and Siegel, S. R. and Singh, S. and Smegal, R. J. and Smith, K. M. and Stairs, I. H. and Tan, C. M. and Tendulkar, S. P. and Tretyakov, I. and Vanderlinde, K. and Wang, H. and Wulf, D. and Zwaniga, A. V.},
biburl = {https://www.bibsonomy.org/bibtex/295e28df946b3359fbb3a8423178bbef1/citekhatri},
description = {A bright millisecond-duration radio burst from a Galactic magnetar},
interhash = {9de280eb9cad29a610e20b1179d7384c},
intrahash = {95e28df946b3359fbb3a8423178bbef1},
keywords = {tifr},
note = {cite arxiv:2005.10324Comment: Submitted to Nature. This version: Geocentric arrival time corrected},
timestamp = {2020-11-09T07:45:44.000+0100},
title = {A bright millisecond-duration radio burst from a Galactic magnetar},
url = {http://arxiv.org/abs/2005.10324},
year = 2020
}