2021ApJ...922L...7B

Query : 2021ApJ...922L...7B

2021ApJ...922L...7B - Astrophys. J., 922, L7-L7 (2021/November-3)

Can a strong radio burst escape the magnetosphere of a magnetar?

BELOBORODOV A.M.

Abstract (from CDS):

We examine the possibility that fast radio bursts (FRBs) are emitted inside the magnetosphere of a magnetar. On its way out, the radio wave must interact with a low-density e± plasma in the outer magnetosphere at radii R = 109-1010 cm. In this region, the magnetospheric particles have a huge cross section for scattering the wave. As a result, the wave strongly interacts with the magnetosphere and compresses it, depositing the FRB energy into the compressed field and the scattered radiation. The scattered spectrum extends to the γ-ray band and triggers e± avalanche, further boosting the opacity. These processes choke FRBs, disfavoring scenarios with a radio source confined at R ≪ 1010 cm. Observed FRBs can be emitted by magnetospheric flare ejecta transporting energy to large radii.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Neutron stars - Radiative processes - Radio bursts - Magnetars

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Sgr 1935+2154 * 19 34 55.68 +21 53 48.2           ~ 820 1

Query : 2021ApJ...922L...7B

Basic data :
NAME Sgr 1935+2154 -- Star
Other object types: otypes_help 		* (), Psr (PSR)
ICRS coord. (ep=J2000) : 		19 34 55.68 +21 53 48.2 (X-ray) [ 2300 2300 0 ] E 2014ATel.6294....1C
FK4 coord. (ep=B1950 eq=1950) : 		19 32 46.46 +21 47 09.2 [ 2300 2300 0 ]
Gal coord. (ep=J2000) : 		057.24701 +00.81875 [ 2300 2300 0 ]
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Identifiers (3) :
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NAME Sgr 1935+2154 NAME Sgr J1935+2154 PSR J1935+2154

References (820 between 1850 and 2026) (Total 820)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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