2023ApJ...951...82M

Query : 2023ApJ...951...82M

2023ApJ...951...82M - Astrophys. J., 951, 82 (2023/July-1)

Revealing the Dynamic Magnetoionic Environments of Repeating Fast Radio Burst Sources through Multiyear Polarimetric Monitoring with CHIME/FRB.

MCKINVEN R., GAENSLER B.M., MICHILLI D., MASUI K., KASPI V.M., SU J., BHARDWAJ M., CASSANELLI T., CHAWLA P., DONG F., FONSECA E., LEUNG C., LI D.Z., NG C., PATEL C., PEARLMAN A.B., PETROFF E., PLEUNIS Z., RAFIEI-RAVANDI M., RAHMAN M., SAND K.R., SHIN K., STAIRS I.H. and TENDULKAR S.

Abstract (from CDS):

Fast radio bursts (FRBs) display a confounding variety of burst properties and host-galaxy associations. Repeating FRBs offer insight into the FRB population by enabling spectral, temporal, and polarimetric properties to be tracked over time. Here, we report on the polarized observations of 12 repeating sources using multiyear monitoring with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) over 400-800 MHz. We observe significant rotation measure (RM) variations from many sources in our sample, including RM changes of several hundred radians per square meter over month timescales from FRBs 20181119A, 20190303A, and 20190417A, and more modest RM variability (ΔRM ≲ few tens of radians per square meter) from FRBs 20181030A, 20190208A, 20190213B, and 20190117A over equivalent timescales. Several repeaters display a frequency-dependent degree of linear polarization that is consistent with depolarization via scattering. Combining our measurements of RM variations with equivalent constraints on DM variability, we estimate the average line-of-sight magnetic field strength in the local environment of each repeater. In general, repeating FRBs display RM variations that are more prevalent and/or extreme than those seen from radio pulsars in the Milky Way and the Magellanic Clouds, suggesting repeating FRBs and pulsars occupy distinct magnetoionic environments.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio transient sources - Polarimetry - Radio bursts

Simbad objects: 37

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Number of rows : 37
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 FRB 20180916B rB 01 58 00.750 +65 43 00.30           ~ 457 0
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
3 NAME FRB 180814.J0422+73 rB 04 22 44.0 +73 39 52           ~ 112 0
4 FRB 20201124A rB 05 07 57.600 +26 11 24.00           ~ 307 0
5 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
6 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
7 PSR B0540-69 Psr 05 40 11.2000490438 -69 19 54.198559829           ~ 976 3
8 FRB 180301 rB 06 12 43.40 +04 33 44.8           ~ 125 0
9 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 445 0
10 NAME FRB 190907.J08+46 rB 08 09 47.0 +46 22 46           ~ 11 0
11 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
12 PSR B0906-49 Psr 09 08 35.46000 -49 13 05.0000           ~ 168 0
13 SNR G270.4-01.0 SNR 09 09 -49.3           ~ 3 0
14 FRB 20190212B rB 09 19 57.6000 +52 06 36.000           ~ 10 0
15 FRB 20200120E rB 09 57 56.7 +68 49 32           ~ 219 0
16 NAME FRB 181030.J1054+73 rB 10 33 24.0000 +73 47 24.000           ~ 79 0
17 NAME FRB 180908.J1232+74 rB 12 32 48.0 +74 10 21           ~ 23 0
18 NAME FRB 181119.J12+65 rB 12 41 52.0 +65 07 02           ~ 26 0
19 CPD-63 2495 HXB 13 02 47.6544015048 -63 50 08.626970292 10.34 10.72 9.98 10.03   O9.5Ve 852 0
20 FRB 20190303A G 13 51 59.77 +48 06 57.6           ~ 58 0
21 NAME FRB 190604.J1435+53 rB 14 34 47.0 +53 18 20           ~ 33 0
22 FRB 20191219F rB 15 04 48.8 +85 25 00           ~ 3 0
23 FRB 20190520B rB 16 02 04.270 -11 17 17.32           ~ 211 0
24 PSR B1718-35 Psr 17 21 32.76 -35 32 48.3           ~ 86 0
25 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
26 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
27 PSR J1745-2900 Psr 17 45 40.1640 -29 00 29.818           ~ 358 0
28 NAME FRB 190212.J18+81 rB 18 25 02.0 +81 24 05           ~ 23 0
29 PSR B1822-14 Psr 18 25 02.927 -14 46 52.60           ~ 92 0
30 SNR G016.8-01.1 SNR 18 25.3 -14 46           ~ 38 0
31 NAME FRB 190208.J1855+46 rB 18 54 07.0 +46 55 20           ~ 30 0
32 NAME FRB 190417.J1939+59 rB 19 39 04.0 +59 19 55           ~ 37 0
33 PSR B1946+35 Psr 19 48 25.0067 +35 40 11.057           ~ 180 0
34 NAME FRB 190222.J2052+69 rB 20 52 12.0 +69 44 42           ~ 23 0
35 FRB 20200917A rB 21 00 29.2 +75 48 13           ~ 2 0
36 FRB 20190711A rB 21 57 40.7 -80 21 29           ~ 114 0
37 NAME FRB 190117.J2207+17 rB 22 06 38.0 +17 22 06           ~ 28 0

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