2024ApJ...964..131S

Query : 2024ApJ...964..131S

2024ApJ...964..131S - Astrophys. J., 964, 131 (2024/April-1)

Deep Synoptic Array Science: Polarimetry of 25 New Fast Radio Bursts Provides Insights into Their Origins.

SHERMAN M.B., CONNOR L., RAVI V., LAW C., CHEN G., CATHA M., FABER J.T., HALLINAN G., HARNACH C., HELLBOURG G., HOBBS R., HODGE D., HODGES M., LAMB J.W., RASMUSSEN P., SHARMA K., SHI J., SIMARD D., SOMALWAR J., SQUILLACE R., WEINREB S., WOODY D.P., YADLAPALLI N. (The Deep Synoptic Array Team)

Abstract (from CDS):

We report on a full-polarization analysis of the first 25 as yet nonrepeating fast radio bursts (FRBs) detected at 1.4 GHz by the 110-antenna Deep Synoptic Array (DSA-110) during commissioning observations. We present details of the data-reduction, calibration, and analysis procedures developed for this novel instrument. Faraday rotation measures (RMs) are searched between ±106 rad m–2 and detected for 20 FRBs, with magnitudes ranging from 4 to 4670 rad m–2. Fifteen out of 25 FRBs are consistent with 100% polarization, 10 of which have high (≥70%) linear-polarization fractions and two of which have high (≥30%) circular-polarization fractions. Our results disfavor multipath RM scattering as a dominant depolarization mechanism. Polarization-state and possible RM variations are observed in the four FRBs with multiple subcomponents. We combine the DSA-110 sample with polarimetry of previously published FRBs, and compare the polarization properties of FRB subpopulations and FRBs with Galactic pulsars. Although FRB polarization fractions are typically higher than those of Galactic pulsars, and cover a wider range than those of pulsar single pulses, they resemble those of the youngest (characteristic ages <105 yr) pulsars. Our results support a scenario wherein FRB emission is intrinsically highly linearly polarized, and propagation effects can result in conversion to circular polarization and depolarization. Young pulsar emission and magnetospheric propagation geometries may form a useful analogy for the origin of FRB polarization.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Cosmic electrodynamics - Extragalactic magnetic fields - Radio transient sources - Neutron stars - Polarimetry - Radio pulsars - Pulsars

Simbad objects: 69

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Number of rows : 69
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 20220424E rB 01 18.0 +71 48           ~ 2 0
2 FRB 191108 rB 01 33 47.0 +31 51 30           ~ 19 0
3 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
4 FRB 20180916B rB 01 58 00.750 +65 43 00.30           ~ 457 0
5 FRB 20220319D rB 02 08 42.700 +71 02 06.94           ~ 39 0
6 FRB 20220801A rB 03 39.8 +70 11           ~ 1 0
7 NAME FRB 180814.J0422+73 rB 04 22 44.0 +73 39 52           ~ 112 0
8 FRB 20220726A rB 04 55 46.960 +69 55 44.80           ~ 16 0
9 FRB 20221101A rB 05 02 +71.6           ~ 3 0
10 FRB 20201124A rB 05 07 57.600 +26 11 24.00           ~ 307 0
11 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
12 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
13 FRB 20220121B rB 05 42.6 +64 23           ~ 2 0
14 FRB 180301 rB 06 12 43.40 +04 33 44.8           ~ 125 0
15 FRB 150418 rB 07 16 30.9 -19 02 24           ~ 120 0
16 NAME FRB 190907.J08+46 rB 08 09 47.0 +46 22 46           ~ 11 0
17 FRB 20221027A rB 08 43 29.230 +72 06 03.50           ~ 14 0
18 FRB 20220310F rB 08 58 52.920 +73 29 27.00           ~ 25 0
19 FRB 20221029A rB 09 27 51.220 +72 27 08.34           ~ 15 0
20 FRB 151230 rB 09 40 50.0 -03 27 05           ~ 31 0
21 FRB 20200120E rB 09 57 56.7 +68 49 32           ~ 219 0
22 NAME FRB 181030.J1054+73 rB 10 33 24.0000 +73 47 24.000           ~ 79 0
23 FRB 20220330D rB 10 55 00.300 +70 21 02.70           ~ 15 0
24 NAME FRB 180908.J1232+74 rB 12 32 48.0 +74 10 21           ~ 23 0
25 NAME FRB 181119.J12+65 rB 12 41 52.0 +65 07 02           ~ 26 0
26 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
27 FRB 20201020A rB 13 51 25.0 +49 02 06           ~ 18 0
28 FRB 20190303A G 13 51 59.77 +48 06 57.6           ~ 58 0
29 NAME FRB 190604.J1435+53 rB 14 34 47.0 +53 18 20           ~ 33 0
30 FRB 20220418A rB 14 36 25.340 +70 05 45.40           ~ 24 0
31 FRB 171209 rB 15 50 25.0 -46 10 20           ~ 27 0
32 FRB 20220920A rB 16 01 01.700 +70 55 07.68           ~ 28 0
33 FRB 20190520B rB 16 02 04.270 -11 17 17.32           ~ 211 0
34 FRB 180714 rB 17 46 12.0 -11 45 47           ~ 19 0
35 PSR B1744-24A Psr 17 48 02.249 -24 46 37.65           ~ 235 0
36 FRB 20220204A rB 18 16 54.300 +69 43 21.01           ~ 15 0
37 FRB 150215 rB 18 17 27.0 -04 54 15           ~ 42 0
38 NAME FRB 190212.J18+81 rB 18 25 02.0 +81 24 05           ~ 23 0
39 FRB 20221012A rB 18 43 11.690 +70 31 27.15           ~ 25 0
40 FRB 20221002A rB 18 44 +71.6           ~ 1 0
41 FRB 20220914A rB 18 48 13.630 +73 20 12.89           ~ 31 0
42 FRB 20220509G rB 18 50 40.800 +70 14 37.80           ~ 37 0
43 NAME FRB 190208.J1855+46 rB 18 54 07.0 +46 55 20           ~ 30 0
44 PSR B1933+16 Psr 19 35 47.7011639352 +16 16 40.034899524           ~ 328 1
45 NAME FRB 190417.J1939+59 rB 19 39 04.0 +59 19 55           ~ 37 0
46 FRB 20220207C rB 20 40 47.890 +72 52 56.38           ~ 29 0
47 FRB 20220825A rB 20 47 55.550 +72 35 05.89           ~ 25 0
48 NAME FRB 190222.J2052+69 rB 20 52 12.0 +69 44 42           ~ 23 0
49 FRB 20220506D rB 21 12 10.760 +72 49 38.20           ~ 24 0
50 FRB 190611 rB 21 22 58.91 -79 23 51.3           ~ 82 0
51 FRB 180309 rB 21 24 43.80 -33 58 44.5           ~ 27 0
52 FRB 190102 rB 21 29 39.76 -79 28 32.5           ~ 83 0
53 FRB 20220208A rB 21 30 18.030 +70 02 27.75           ~ 15 0
54 FRB 180311 rB 21 31 33.42 -57 44 26.7           ~ 24 0
55 FRB 191001 rB 21 33 24.373 -54 44 51.40           ~ 64 0
56 FRB 180924 rB 21 44 25.255 -40 54 00.10           ~ 140 0
57 FRB 110523 rB 21 45 31.0 -00 15 23           ~ 91 0
58 FRB 181112 rB 21 49 23.630 -52 58 15.39           ~ 131 0
59 FRB 20220926A rB 21 54.9 +72 52           ~ 1 0
60 FRB 20190711A rB 21 57 40.7 -80 21 29           ~ 114 0
61 NAME FRB 190117.J2207+17 rB 22 06 38.0 +17 22 06           ~ 28 0
62 FRB 190608 rB 22 16 04.74 -07 53 53.6           ~ 102 0
63 FRB 140514 rB 22 34 06.20 -12 18 46.5           ~ 80 0
64 FRB 20220831A rB 22 34.8 +70 32           ~ 12 0
65 FRB 20160102A rB 22 38 49.0 -30 10 50           ~ 41 0
66 FRB 150807 rB 22 41 33.75 -53 05 39.9           ~ 66 0
67 FRB 20221101B rB 22 48 51.890 +70 40 52.20           ~ 18 0
68 FRB 20220912A rB 23 09 04.9 +48 42 25           ~ 126 0
69 FRB 20220307B rB 23 23 29.880 +72 11 32.59           ~ 26 0

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