2024ApJ...975..217C

Query : 2024ApJ...975..217C

2024ApJ...975..217C - Astrophys. J., 975, 217 (2024/November-2)

Determining the Magnetic Field in the Galactic Plane from New Arecibo Pulsar Faraday Rotation Measurements.

CURTIN A.P., WEISBERG J.M. and RANKIN J.M.

Abstract (from CDS):

We develop a new method for studying the Galactic magnetic field along the spiral arms using pulsar Faraday rotation measures (RMs). Our new technique accounts for the dot-product nature of Faraday rotation and also splits the associated path integral into segments corresponding to particular zones along the line of sight. We apply this geometrically corrected, arm-by-arm technique to the low-latitude portion of a recently published set of Arecibo Faraday RMs for 313 pulsars, along with previously obtained RMs in the same regions. We find disparities >1σ between the magnitude of the field above and below the plane in the Local Arm, Sagittarius Arm, Sagittarius-to-Scutum Interarm, Scutum Arm, and Perseus Arm. We find evidence for a single field reversal near the Local Arm-Sagittarius Arm boundary. Interestingly, our results suggest that this field reversal is dependent on latitude, occurring inside the Sagittarius Arm at negative Galactic latitudes and at the Local Arm-Sagittarius Arm boundary at positive Galactic latitudes. We discuss all of our results in the context of different models and other observational Galactic magnetic field analyses.

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

Journal keyword(s): Radio pulsars - Milky Way magnetic fields - Interstellar medium - Radio astronomy

Simbad objects: 134

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Number of rows : 134
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 PSR J0215+6218 Psr 02 15 56.626 +62 18 33.37           ~ 22 0
3 PSR J0248+6021 Psr 02 48 18.642 +60 21 34.70           ~ 63 1
4 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
5 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 690 1
6 PSR B0355+54 Psr 03 58 53.7165 +54 13 13.727           ~ 465 1
7 PSR B0450+55 Psr 04 54 07.709 +55 43 41.51           ~ 174 0
8 PSR B0458+46 Psr 05 02 04.561 +46 54 06.09           ~ 96 0
9 PSR B0525+21 Psr 05 28 52.308 +22 00 01.00     14.30     ~ 370 0
10 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
11 PSR J0538+2813 Psr 05 38 25.06 +28 17 11.0           ~ 224 1
12 PSR J0540+3207 Psr 05 40 37 +32 07.6           ~ 18 0
13 PSR J0611+30 Psr 06 11 00.4 +30 13 58           ~ 20 0
14 PSR J0709+0458 Psr 07 09 08.36539 +04 58 51.4941           ~ 17 0
15 PSR J0711+0931 Psr 07 11 36.18 +09 31 25.0           ~ 14 0
16 PSR J0737-3039 Psr 07 37 51.248 -30 39 40.83           ~ 445 1
17 PSR B0736-40 Psr 07 38 32.2620 -40 42 39.420           ~ 212 0
18 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 445 0
19 NAME GUM Nebula ISM 07 43 -42.1           ~ 454 1
20 PSR J0749-4247 Psr 07 49 49.675 -42 47 42.14           ~ 19 0
21 PSR B0808-47 Psr 08 09 43.83400 -47 53 54.8500           ~ 61 0
22 PSR J0818-3232 Psr 08 18 25.935 -32 32 30.53           ~ 18 0
23 PSR B0818-41 Psr 08 20 15.46000 -41 14 35.2000           ~ 100 0
24 PSR J0820-3921 Psr 08 20 49.11 -39 21 55.7           ~ 15 0
25 PSR J0820-3826 Psr 08 20 59.932 -38 26 42.88           ~ 17 0
26 PSR J0821-4221 Psr 08 21 44.636 -42 21 25.46           ~ 15 0
27 PSR B0826-34 Psr 08 28 16.6 -34 17 07           ~ 167 0
28 PSR J0831-4406 Psr 08 31 32.43 -44 06 11.9           ~ 16 0
29 PSR J0834-4159 Psr 08 34 16.3 -41 59 51           ~ 34 0
30 PSR J0835-3707 Psr 08 35 03.08 -37 07 51.5           ~ 17 0
31 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
32 PSR B0835-41 Psr 08 37 21.1943 -41 35 14.563     12.69     ~ 149 0
33 PSR J0838-2621 Psr 08 38 18.801 -26 21 29.55           ~ 18 0
34 PSR B0839-53 Psr 08 40 33.72600 -53 32 35.9500           ~ 47 0
35 PSR B0840-48 Psr 08 42 05.44430 -48 51 20.6000           ~ 47 0
36 PSR J0843-5022 Psr 08 43 09.884 -50 22 43.10           ~ 15 0
37 PSR B0844-35 Psr 08 46 06.07120 -35 33 40.9100           ~ 89 0
38 PSR J0855-4658 Psr 08 55 19.57 -46 58 22.6           ~ 10 0
39 PSR J0855-4644 Psr 08 55 36.160 -46 44 13.46           ~ 62 1
40 PSR B0853-33 Psr 08 55 38.42100 -33 31 38.9900           ~ 57 0
41 PSR J0857-4424 Psr 08 57 55.8823806144 -44 24 10.616717376           ~ 39 0
42 PSR J0900-3144 Psr 09 00 43.95220 -31 44 30.8722           ~ 68 0
43 PSR J0901-4624 Psr 09 01 40.110 -46 24 48.45           ~ 30 0
44 PSR B0903-42 Psr 09 04 59.08300 -42 46 13.4000           ~ 36 0
45 PSR J0905-6019 Psr 09 05 15.245 -60 19 22.06           ~ 5 0
46 PSR J0904-4546 Psr 09 05 23.90 -45 36 53.0           ~ 25 0
47 PSR J0905-5127 Psr 09 05 51.922 -51 27 48.71           ~ 51 0
48 PSR B0905-51 Psr 09 07 15.90100 -51 57 59.3600           ~ 82 0
49 PSR B0906-49 Psr 09 08 35.46000 -49 13 05.0000           ~ 168 0
50 PSR J0912-3851 Psr 09 12 42.70 -38 51 03.0           ~ 11 0
51 PSR J0922-4949 Psr 09 22 14.961 -49 49 12.08           ~ 12 0
52 PSR B0922-52 Psr 09 24 08.72200 -53 02 42.6000           ~ 48 0
53 PSR B0923-58 Psr 09 24 30.82000 -58 14 05.1000           ~ 48 0
54 PSR B0932-52 Psr 09 34 28.23700 -52 49 27.3000           ~ 55 0
55 PSR J0940-5428 Psr 09 40 58.22 -54 28 40.6           ~ 61 0
56 PSR J0941-5248 Psr 09 41 41.147 -52 44 04.48           ~ 16 0
57 PSR B0940-55 Psr 09 42 14.88000 -55 52 55.1000           ~ 101 0
58 PSR B0941-56 Psr 09 42 54.42200 -56 57 43.2100           ~ 54 0
59 PSR J0945-4833 Psr 09 45 38.254 -48 33 14.50           ~ 9 0
60 PSR J0954-5430 Psr 09 54 06.04 -54 30 53.5           ~ 34 0
61 PSR B0953-52 Psr 09 55 29.46100 -53 04 16.6400           ~ 50 0
62 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
63 PSR J0957-5432 Psr 09 57 56.01 -54 32 03.9           ~ 9 0
64 PSR B0957-47 Psr 09 59 26.21200 -48 09 47.4700           ~ 47 0
65 PSR J1001-5559 Psr 10 01 08.4449537832 -55 59 01.424199516           ~ 17 0
66 PSR B0959-54 Psr 10 01 37.85000 -55 07 07.8000           ~ 113 0
67 PSR B1001-47 Psr 10 03 21.52900 -47 47 01.1900           ~ 56 0
68 PSR B1011-58 Psr 10 12 48.47000 -58 57 48.5000           ~ 35 0
69 PSR J1013-5934 Psr 10 13 31.84800 -59 34 26.6300           ~ 20 0
70 PSR J1014-5719 Psr 10 15 37.96 -57 19 12.8           ~ 44 0
71 PSR J1016-5819 Psr 10 16 12.100 -58 19 01.15           ~ 27 0
72 PSR J1016-58 Psr 10 16 21.266 -58 57 11.70           ~ 129 3
73 PSR B1015-56 Psr 10 17 12.83100 -56 21 30.5170     14.40     ~ 52 0
74 PSR J1019-5749 Psr 10 19 52.14 -57 49 05.9           ~ 46 0
75 PSR J1020-6026 Psr 10 20 11.40 -60 26 06.8           ~ 20 0
76 PSR J1036-4926 Psr 10 36 13.12100 -49 26 21.2000           ~ 27 0
77 NAME Car-Sgr Arm PoG 15 00 -40.0           ~ 581 1
78 PSR J1730-2304 Psr 17 30 21.68471 -23 04 31.2590           ~ 194 1
79 PSR J1741-2733 Psr 17 41 01.29 -27 33 51.8           ~ 20 0
80 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
81 PSR B1749-28 Psr 17 52 58.70700 -28 06 36.0000           ~ 277 1
82 PSR J1759-2922 Psr 17 59 48.246 -29 22 07.00           ~ 15 0
83 PSR B1758-29 Psr 18 01 46.83900 -29 20 38.1000           ~ 53 0
84 PSR J1802-2124 Psr 18 02 05.334393 -21 24 03.67600           ~ 101 1
85 PSR J1804-27 Psr 18 04 21.13307 -27 17 31.3370           ~ 87 1
86 PSR B1804-12 Psr 18 06 06.791 -11 54 28.70           ~ 25 0
87 PSR B1820-31 Psr 18 23 46.81900 -31 06 48.0000           ~ 80 0
88 PSR B1822-09 Psr 18 25 30.62000 -09 35 22.0000           ~ 382 0
89 PSR J1829+0000 Psr 18 29 47.14 +00 00 08.5           ~ 10 0
90 PSR J1832-0836 Psr 18 32 27.589497 -08 36 55.14540           ~ 86 0
91 PSR J1837-0653 Psr 18 37 14.53000 -06 52 55.0000           ~ 43 0
92 PSR B1839-03.8 Psr 18 41 38.68 -03 48 42.6           ~ 44 0
93 PSR B1839-04.3 Psr 18 42 11.289 -04 15 38.20           ~ 12 0
94 PSR B1839-04 Psr 18 42 26.4642900744 -04 00 00.516985452           ~ 81 0
95 PSR B1842-04 Psr 18 45 34.709 -04 34 29.80           ~ 45 0
96 PSR B1845-01 Psr 18 48 23.59600 -01 23 58.4800           ~ 154 0
97 PSR J1848+0823 Psr 18 48 43.77 +08 26 35.9           ~ 13 0
98 PSR B1847+01.3 Psr 18 49 44.18 +01 27 23.0           ~ 13 0
99 PSR J1849-0614 Psr 18 49 45.11 -06 14 32.0           ~ 10 0
100 PSR J1850-0006 Psr 18 50 47.93 -00 06 26.1           ~ 14 0
101 PSR B1853+01 Psr 18 56 10.65 +01 13 21.3           ~ 211 1
102 PSR B1854+00 Psr 18 57 00.80 +00 57 16.8           ~ 33 0
103 PSR J1858+0241 Psr 18 58 53.81 +02 41 37.5           ~ 6 0
104 NAME Sgr Arm PoG 19 00 -30.0           ~ 710 1
105 PSR J1900-0051 Psr 19 00 46.64 -00 51 08.4           ~ 10 0
106 PSR J1901+0621 Psr 19 01 06.0 +06 21 19           ~ 7 0
107 PSR J1901+0254 Psr 19 01 15.7 +02 54 41           ~ 11 0
108 PSR B1859+03 Psr 19 01 31.7700 +03 31 04.960           ~ 156 0
109 PSR J1901+0510 Psr 19 01 57.90 +05 10 36.5           ~ 15 0
110 PSR J1902+0723 Psr 19 02 13.54 +07 23 51.0           ~ 13 0
111 PSR B1900+06 Psr 19 02 50.27700 +06 16 33.4100           ~ 66 0
112 PSR J1902-0340 Psr 19 02 50.74 -03 40 18.1           ~ 5 0
113 PSR B1905+07.5 Psr 19 07 44.118 +07 40 22.60           ~ 15 0
114 PSR B1907+10 Psr 19 09 48.6222922872 +11 02 02.884778124     13.61     ~ 155 0
115 PSR B1907+03 Psr 19 10 09.01600 +03 58 30.0000     14.10     ~ 99 0
116 PSR B1908+12 Psr 19 10 13.53 +12 31 40.2           ~ 44 0
117 PSR J1910+0728 Psr 19 10 22.079 +07 28 37.09           ~ 18 0
118 PSR B1911+13 Psr 19 13 24.35200 +14 00 52.5000           ~ 75 0
119 PSR B1911-04 Psr 19 13 54.16240 -04 40 47.5600           ~ 192 0
120 PSR J1915+07 Psr 19 15 01.94 +07 52 09.2           ~ 16 0
121 PSR B1917+00 Psr 19 19 50.67000 +00 21 39.8000           ~ 120 0
122 PSR J1920+1110 Psr 19 20 13.31 +11 10 59.0           ~ 12 0
123 PSR B1921+17 Psr 19 23 07.85 +17 06 09.4           ~ 28 0
124 PSR J2015+2524 Psr 20 15 12.70 +25 24 31.3           ~ 16 0
125 PSR J2016+1948 Psr 20 16 56.7 +19 48 03           ~ 24 1
126 PSR J2017+2043 Psr 20 17 28.938 +20 43 31.90           ~ 14 0
127 PSR J2021+3651 Psr 20 21 05.40 +36 51 04.5           ~ 218 1
128 PSR B2022+50 Psr 20 23 41.9427 +50 37 34.858           ~ 46 0
129 [MT91] 213 Psr 20 32 13.1247390384 +41 27 24.346666440 13.12 13.08 11.266     B0Vp 334 0
130 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
131 PSR J2037+3621 Psr 20 37 27.44 +36 21 24.1           ~ 62 0
132 NAME Outer Arm PoG 21 48 +69.4           ~ 370 0
133 NAME Local Arm reg ~ ~           ~ 649 0
134 NAME Scutum Spiral Arm PoG ~ ~           ~ 393 0

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