2020MNRAS.499..355W

Query : 2020MNRAS.499..355W

2020MNRAS.499..355W - Mon. Not. R. Astron. Soc., 499, 355-361 (2020/November-3)

On the magnetoionic environments of fast radio bursts.

WANG W.-Y., ZHANG B., CHEN X. and XU R.

Abstract (from CDS):

Observations of the Faraday rotation measure, combined with the dispersion measure, can be used to infer the magnetoionic environment of a radio source. We investigate the magnetoionic environments of fast radio bursts (FRBs) by deriving their estimated average magnetic field strengths along the line of sight <B||> in their host galaxies and comparing them with those of Galactic pulsars and magnetars. We find that for those FRBs with RM measurements, the mean <B||> are 1.77+9.01–1.48 µG and 1.74+14.82–1.55 µG using two different methods, which is slightly larger but not inconsistent with the distribution of Galactic pulsars, 1.00+1.51–0.60 µG. Only six Galactic magnetars have estimated <B||> . Excluding PSR J1745-2900 that has an anomalously high value due to its proximity with the Galactic Centre, the other five sources have a mean value of 1.70 µG, which is statistically consistent with the <B||> distributions of both Galactic pulsars and FRBs. There is no apparent trend of evolution of magnetar <B||> as a function of age or surface magnetic field strength. Galactic pulsars and magnetars close to the Galactic Centre have relatively larger <B||> values than other pulsars/magnetars. We discuss the implications of these results for the magnetoionic environments of FRB 121102 within the context of magnetar model and the model invoking a supermassive black hole, and for the origin of FRBs in general.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: neutron - pulsars: general - fast radio bursts

Simbad objects: 32

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Number of rows : 32
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 FRB 191108 rB 01 33 47.0 +31 51 30           ~ 11 0
2 FRB 20180916B rB 01 58 00.750 +65 43 00.30           ~ 313 0
3 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 719 0
4 FRB 180301 rB 06 12 43.40 +04 33 44.8           ~ 72 0
5 FRB 150418 rB 07 16 30.9 -19 02 24           ~ 113 0
6 NAME FRB 190303.J1353+48 rB 13 51 59.0 +48 07 16           ~ 28 0
7 NAME FRB 190604.J1435+53 rB 14 34 47.0 +53 18 20           ~ 22 0
8 FRB 171209 rB 15 50 25.0 -46 10 20           ~ 23 0
9 PSR J1550-5418 Psr 15 50 54.18 -54 18 23.9           ~ 409 1
10 PSR J1622-4950 Psr 16 22 44.80 -49 50 54.4           ~ 146 0
11 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14415 0
12 PSR J1745-2900 Psr 17 45 40.1640 -29 00 29.818           ~ 315 0
13 PSR J1746-2849 Psr 17 46 03.7 -28 49 19           ~ 14 0
14 FRB 180714 rB 17 46 12.0 -11 45 47           ~ 17 0
15 PSR J1746-2856 Psr 17 46 49.50 -28 56 31.0           ~ 19 0
16 AX J1809.8-1943 Psr 18 09 51.07 -19 43 51.8           ~ 463 0
17 FRB 150215 rB 18 17 27.0 -04 54 15           ~ 37 0
18 SWIFT J1818.0-1607 N* 18 18 00.23 -16 07 53.0           ~ 78 0
19 NAME Sgr 1935+2154 * 19 34 55.68 +21 53 48.2           ~ 582 1
20 SNR G057.2+00.8 SNR 19 35.0 +21 57           ~ 102 0
21 FRB 200428 rB 19 35.0 +21 57           ~ 171 0
22 FRB 190611 rB 21 22 58.91 -79 23 51.3           ~ 56 0
23 FRB 180309 rB 21 24 43.80 -33 58 44.5           ~ 24 0
24 FRB 190102 rB 21 29 39.76 -79 28 32.5           ~ 55 0
25 FRB 180311 rB 21 31 33.42 -57 44 26.7           ~ 22 0
26 FRB 180924 rB 21 44 25.255 -40 54 00.10           ~ 113 0
27 FRB 110523 rB 21 45 31.0 -00 15 23           ~ 84 0
28 FRB 181112 rB 21 49 23.630 -52 58 15.39           ~ 96 0
29 FRB 20190711A rB 21 57 40.7 -80 21 29           ~ 79 0
30 FRB 190608 rB 22 16 04.74 -07 53 53.6           ~ 66 0
31 FRB 20160102A rB 22 38 49.0 -30 10 50           ~ 34 0
32 FRB 150807 rB 22 41 33.75 -53 05 39.9           ~ 61 0

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