2019MNRAS.484.3646S

Query : 2019MNRAS.484.3646S

2019MNRAS.484.3646S - Mon. Not. R. Astron. Soc., 484, 3646-3664 (2019/April-2)

Low-frequency Faraday rotation measures towards pulsars using LOFAR: probing the 3D Galactic halo magnetic field.

SOBEY C., BILOUS A.V., GRIESSMEIER J.-M., HESSELS J.W.T., KARASTERGIOU A., KEANE E.F., KONDRATIEV V.I., KRAMER M., MICHILLI D., NOUTSOS A., PILIA M., POLZIN E.J., STAPPERS B.W., TAN C.M., VAN LEEUWEN J., VERBIEST J.P.W., WELTEVREDE P., HEALD G., ALVES M.I.R., CARRETTI E., ENSSLIN T., HAVERKORN M., IACOBELLI M., REICH W. and VAN ECK C.

Abstract (from CDS):

We determined Faraday rotation measures (RMs) towards 137 pulsars in the northern sky, using Low-Frequency Array (LOFAR) observations at 110-190 MHz. This low-frequency RM catalogue, the largest to date, improves the precision of existing RM measurements on average by a factor of 20 - due to the low frequency and wide bandwidth of the data, aided by the RM-synthesis method. We report RMs towards 25 pulsars for the first time. The RMs were corrected for ionospheric Faraday rotation to increase the accuracy of our catalogue to ≃0.1 rad m–2. The ionospheric RM correction is currently the largest contributor to the measurement uncertainty. In addition, we find that the Faraday dispersion functions towards pulsars are extremely Faraday thin - mostly less than 0.001 rad m–2. We use these new precise RM measurements (in combination with existing RMs, dispersion measures, and distance estimates) to estimate the scale height of the Galactic halo magnetic field: 2.0 ± 0.3 kpc for Galactic quadrants I and II above and below the Galactic plane (we also evaluate the scale height for these regions individually). Overall, our initial low-frequency catalogue provides valuable information about the 3D structure of the Galactic magnetic field.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: polarimetric - pulsars: general - ISM: magnetic fields - Galaxy: structure

VizieR on-line data: <Available at CDS (J/MNRAS/484/3646): tablea1.dat>

Simbad objects: 182

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Number of rows : 182
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 PSR J0006+1834 Psr 00 06 04.8 +18 34 59           ~ 21 0
2 PSR B0011+47 Psr 00 14 17.75 +47 46 33.4           ~ 67 0
3 PSR J0030+0451 Psr 00 30 27.42348 +04 51 39.7144           ~ 596 1
4 PSR B0037+56 Psr 00 40 32.3899 +57 16 24.833           ~ 44 0
5 PSR B0045+33 Psr 00 48 33.98 +34 12 08.0           ~ 45 0
6 PSR B0052+51 Psr 00 55 45.3981 +51 17 24.601           ~ 52 0
7 PSR B0053+47 Psr 00 56 25.51 +47 56 10.5           ~ 36 0
8 PSR B0105+65 Psr 01 08 22.5049 +66 08 34.499           ~ 81 0
9 PSR B0105+68 Psr 01 08 29.500 +69 05 52.63           ~ 29 0
10 PSR J0137+1654 Psr 01 37 23.88 +16 54 42.1           ~ 17 0
11 PSR B0136+57 Psr 01 39 19.744 +58 14 31.73     13.41     ~ 163 0
12 PSR J0152+0948 Psr 01 52 23.7 +09 48 10           ~ 9 0
13 PSR B0153+39 Psr 01 56 55.2 +39 49 29           ~ 27 0
14 PSR J0212+5222 Psr 02 12 52.136 +52 22 49.50           ~ 12 0
15 PSR J0214+5222 Psr 02 14 55.2713 +52 22 40.950           ~ 19 0
16 PSR J0218+42 Psr 02 18 06.3604 +42 32 17.365           ~ 365 2
17 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
18 PSR B0226+70 Psr 02 31 13.990 +70 26 33.88           ~ 35 0
19 PSR B0301+19 Psr 03 04 33.115 +19 32 51.40           ~ 247 0
20 PSR B0320+39 Psr 03 23 26.6619 +39 44 52.403           ~ 139 0
21 PSR J0324+5239 Psr 03 24 55.46 +52 39 31.3           ~ 9 0
22 PSR J0329+1654 Psr 03 29 08.55 +16 54 02.0           ~ 10 0
23 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 690 1
24 PSR B0331+45 Psr 03 35 16.6416 +45 55 53.452           ~ 47 0
25 PSR J0337+1715 Psr 03 37 43.8210968640 +17 15 14.886499572           ~ 113 0
26 PSR B0402+61 Psr 04 06 30.0806 +61 38 41.408           ~ 90 1
27 PSR J0407+16 Psr 04 07 54.939 +16 07 16.40           ~ 35 1
28 PSR B0410+69 Psr 04 15 55.653 +69 54 09.89           ~ 46 0
29 PSR J0417+35 Psr 04 17 43 +35 45.0           ~ 18 0
30 PSR J0435+27 Psr 04 35 34 +27 44.0           ~ 13 0
31 PSR B0450+55 Psr 04 54 07.709 +55 43 41.51           ~ 174 0
32 PSR B0523+11 Psr 05 25 56.49800 +11 15 18.8000           ~ 125 1
33 PSR B0525+21 Psr 05 28 52.308 +22 00 01.00     14.30     ~ 370 0
34 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
35 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
36 PSR B0540+23 Psr 05 43 09.65 +23 29 06.1     14.40     ~ 278 0
37 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
38 PSR J0611+30 Psr 06 11 00.4 +30 13 58           ~ 20 0
39 PSR B0609+37 Psr 06 12 44.087 +37 21 40.20           ~ 62 0
40 PSR J0621+10 Psr 06 21 22.11108 +10 02 38.7410           ~ 128 1
41 PSR B0626+24 Psr 06 29 05.7273 +24 15 41.546           ~ 123 0
42 PSR J0636+5129 Psr 06 36 04.84645 +51 28 59.9625           ~ 101 0
43 PSR J0645+5158 Psr 06 45 59.08191 +51 58 14.9210           ~ 65 0
44 PSR B0643+80 Psr 06 53 15.090 +80 52 00.22           ~ 65 0
45 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1
46 PSR B0655+64 Psr 07 00 37.802 +64 18 11.20           ~ 250 1
47 PSR J0711+0931 Psr 07 11 36.18 +09 31 25.0           ~ 14 0
48 PSR B0751+32 Psr 07 54 40.688 +32 31 56.20           ~ 88 0
49 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 425 0
50 PSR B0823+26 Psr 08 26 51.5068 +26 37 21.297           ~ 541 1
51 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
52 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
53 PSR B0841+80 Psr 08 49 01.50 +80 28 59.1           ~ 25 0
54 PSR B0917+63 Psr 09 21 14.135 +62 54 13.91           ~ 42 0
55 PSR J0943+22 Psr 09 43 25 +22 56.0           ~ 23 0
56 PSR B0940+16 Psr 09 43 30.10 +16 31 37.0           ~ 79 0
57 PSR B0943+10 Psr 09 46 07.31 +09 51 57.3           ~ 364 1
58 PSR J0947+27 Psr 09 47 22 +27 42.0           ~ 18 0
59 PSR J1012+5307 Psr 10 12 33.4345449600 +53 07 02.548542576     19.5     DA 419 1
60 PSR J1022+10 Psr 10 22 57.990 +10 01 52.92           ~ 279 2
61 PSR J1023+0038 Psr 10 23 47.6841824712 +00 38 41.005893516     17.31     GV 470 0
62 PSR J1025-07 Psr 10 24 38.6991893112 -07 19 19.045523388     19.81 18.78 18.00 ~ 286 1
63 PSR J1038+0032 Psr 10 38 26.93 +00 32 43.6           ~ 15 0
64 PSR B1112+50 Psr 11 15 38.400 +50 30 12.29           ~ 154 0
65 PSR B1133+16 Psr 11 36 03.09460 +15 51 15.9000           ~ 715 0
66 NAME North Polar Spur ISM 12 00 +00.0           ~ 405 1
67 PSR J1231-1411 Psr 12 31 11.3069 -14 11 43.628           ~ 139 0
68 PSR J1238+21 Psr 12 38 23.17 +21 52 11.1           ~ 23 0
69 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 497 1
70 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
71 PSR J1246+22 Psr 12 46 38 +22 53.0           ~ 18 0
72 PSR B1257+12 Psr 13 00 03.1075 +12 40 55.155           ~ 546 1
73 PSR J1313+0931 Psr 13 13 23.0 +09 31 56           ~ 21 0
74 PSR B1322+83 Psr 13 21 45.6315 +83 23 39.432           ~ 70 0
75 NAME Loop I SR? 15 01 -38.7           ~ 414 2
76 PSR J1503+2111 Psr 15 03 54.60 +21 11 09.3           ~ 24 0
77 PSR B1508+55 Psr 15 09 25.674 +55 31 32.90           ~ 322 1
78 PSR B1530+27 Psr 15 32 10.3646 +27 45 49.623           ~ 122 0
79 PSR B1541+09 Psr 15 43 38.82000 +09 29 16.4000           ~ 215 1
80 PSR J1544+4937 Psr 15 44 04.166 +49 37 57.45           ~ 89 1
81 PSR J1612+2008 Psr 16 12 23.432 +20 08 18.33           ~ 12 0
82 PSR J1627+1419 Psr 16 27 18.759 +14 19 20.70           ~ 24 0
83 PSR B1633+24 Psr 16 35 25.781 +24 18 47.30           ~ 74 0
84 PSR J1640+2224 Psr 16 40 16.744850 +22 24 08.84119           ~ 210 0
85 PSR J1645+1012 Psr 16 45 34.415 +10 12 16.04           ~ 20 0
86 PSR J1649+2533 Psr 16 49 44.23 +25 33 07.0           ~ 33 0
87 PSR J1652+2651 Psr 16 52 03.080 +26 51 39.85           ~ 35 0
88 PSR J1709+2313 Psr 17 09 05.792 +23 13 27.85           ~ 36 1
89 PSR J1720+2150 Psr 17 20 01.30 +21 50 12.8           ~ 22 0
90 PSR J1738+0333 Psr 17 38 53.966386 +03 33 10.87200           ~ 191 1
91 PSR B1737+13 Psr 17 40 07.3455 +13 11 56.690           ~ 191 0
92 PSR J1741+2758 Psr 17 41 53.51 +27 58 09.0           ~ 26 0
93 PSR J1744-1134 Psr 17 44 29.4220844 -11 34 54.801320           ~ 323 1
94 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
95 PSR J1746+2245 Psr 17 46 00.84 +22 45 28.9           ~ 15 0
96 PSR J1746+2540 Psr 17 46 06.87 +25 40 37.5           ~ 13 0
97 PSR J1752+2359 Psr 17 52 35.42 +23 59 48.2           ~ 64 0
98 PSR B1753+52 Psr 17 54 22.9068 +52 01 12.244           ~ 40 0
99 PSR J1758+3030 Psr 17 58 25.88 +30 30 24.0           ~ 30 0
100 PSR J1810+17 Psr 18 10 37.2791131488 +17 44 37.425884136           ~ 147 1
101 PSR B1811+40 Psr 18 13 13.281 +40 13 39.03           ~ 67 0
102 PSR J1816+4510 Psr 18 16 35.9342957160 +45 10 33.917516328           ~ 126 0
103 PSR J1821+17 Psr 18 21 13.503 +17 15 47.06           ~ 15 0
104 PSR J1834+10 Psr 18 34 27 +10 44.0           ~ 10 0
105 PSR J1838+16 Psr 18 38 43.062 +16 50 16.05           ~ 12 0
106 PSR B1839+56 Psr 18 40 44.5372 +56 40 54.852           ~ 109 1
107 PSR B1839+09 Psr 18 41 55.92100 +09 12 07.2900           ~ 134 0
108 PSR B1842+14 Psr 18 44 54.8946 +14 54 14.120           ~ 127 0
109 PSR J1848+0823 Psr 18 48 43.77 +08 26 35.9           ~ 13 0
110 PSR J1849+2423 Psr 18 49 34.6763 +24 23 45.976           ~ 14 0
111 PSR B1848+13 Psr 18 50 35.473 +13 35 58.39           ~ 49 0
112 PSR B1848+12 Psr 18 51 13.2375743628 +12 59 35.328125251           ~ 48 0
113 PSR J1859+1526 Psr 18 59 44.389 +15 26 11.00           ~ 13 0
114 PSR J1900+30 Psr 19 00 18 +30 53.0           ~ 14 0
115 PSR J1901+13 Psr 19 01 48.77 +13 06 48.3           ~ 13 0
116 PSR J1905+0400 Psr 19 05 28.2736 +04 00 10.922           ~ 25 0
117 PSR J1906+1854 Psr 19 06 44.71 +18 54 08.5           ~ 16 0
118 PSR B1905+39 Psr 19 07 34.656 +40 02 05.71           ~ 93 0
119 PSR J1908+2351 Psr 19 08 31.94 +23 51 41.9           ~ 8 0
120 PSR J1912+2525 Psr 19 12 18.626 +25 25 02.12           ~ 19 0
121 PSR J1913+3732 Psr 19 13 27.8135266200 +37 32 12.481201608           ~ 12 0
122 PSR J1918-0642 Psr 19 18 48.027685 -06 42 34.95735           ~ 146 0
123 PSR B1918+26 Psr 19 20 38.374 +26 50 38.40           ~ 40 0
124 PSR B1919+21 Psr 19 21 44.815 +21 53 02.25           ~ 411 0
125 PSR J1923+2515 Psr 19 23 22.494560 +25 15 40.64360           ~ 53 0
126 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
127 PSR J1937+2950 Psr 19 37 47.603 +29 50 01.80           ~ 8 0
128 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
129 PSR B1944+17 Psr 19 46 53.044 +18 05 41.24           ~ 252 0
130 PSR B1946+35 Psr 19 48 25.0067 +35 40 11.057           ~ 180 0
131 PSR B1953+50 Psr 19 55 18.7637 +50 59 55.292           ~ 90 0
132 PSR J1956+0838 Psr 19 56 52.26 +08 38 16.8           ~ 11 0
133 PSR J1959+2048 Psr 19 59 36.7643141520 +20 48 14.896407996   21.08 20.16 19.53 18.79 G: 854 3
134 PSR J2002+1637 Psr 20 02 47.77 +16 37 16.7           ~ 11 0
135 PSR J2007+0809 Psr 20 07 13.5 +08 09 33           ~ 11 0
136 PSR J2007+0910 Psr 20 07 58.10 +09 10 12.9           ~ 14 0
137 PSR J2017+2043 Psr 20 17 28.938 +20 43 31.90           ~ 14 0
138 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 374 0
139 PSR J2019+24 Psr 20 19 31.94900 +24 25 15.3038           ~ 145 1
140 PSR B2020+28 Psr 20 22 37.0671 +28 54 23.104           ~ 330 1
141 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 288 1
142 PSR B2022+50 Psr 20 23 41.9427 +50 37 34.858           ~ 46 0
143 PSR B2025+21 Psr 20 27 16.690 +21 46 04.43           ~ 33 0
144 PSR J2036+2835 Psr 20 36 46.363 +28 35 10.44           ~ 11 0
145 PSR B2034+19 Psr 20 37 14.54 +19 42 54.3           ~ 41 0
146 PSR B2036+53 Psr 20 38 03.16 +53 19 12.8           ~ 25 0
147 PSR J2040+1657 Psr 20 40 17.865 +16 57 30.46           ~ 14 0
148 PSR J2043+1711 Psr 20 43 20.8828 +17 11 28.941           ~ 129 1
149 PSR J2043+2740 Psr 20 43 43.5 +27 40 56           ~ 137 0
150 PSR B2044+15 Psr 20 46 39.33600 +15 40 33.6000           ~ 109 0
151 PSR B2045+56 Psr 20 46 46.609 +57 08 37.09           ~ 25 0
152 PSR J2048+2255 Psr 20 48 45.868 +22 55 05.31           ~ 10 0
153 V* LY Aqr Psr 20 51 07.52058 -08 27 37.6100           ~ 236 2
154 PSR B2053+36 Psr 20 55 31.3552 +36 30 21.489           ~ 103 0
155 PSR B2053+21 Psr 20 55 39.151 +22 09 27.22           ~ 55 0
156 PSR J2111+2106 Psr 21 11 33.13 +21 06 07.0           ~ 10 0
157 PSR B2110+27 Psr 21 13 04.3506 +27 54 01.160           ~ 115 0
158 PSR B2113+14 Psr 21 16 13.76100 +14 14 20.3800           ~ 91 0
159 PSR J2139+2242 Psr 21 39 26.90 +22 42 42.0           ~ 30 0
160 PSR B2148+63 Psr 21 49 58.7033 +63 29 44.277           ~ 96 0
161 PSR J2155+2813 Psr 21 55 15.82 +28 13 12.1           ~ 16 0
162 PSR B2154+40 Psr 21 57 01.840 +40 17 45.89           ~ 155 0
163 PSR J2205+1444 Psr 22 05 17.247 +14 44 31.30           ~ 15 0
164 PSR B2210+29 Psr 22 12 23.3444 +29 33 05.411           ~ 54 0
165 PSR J2214+3000 Psr 22 14 38.8480 +30 00 38.209           ~ 136 0
166 PSR J2215+51 Psr 22 15 32.6869149432 +51 35 36.400854912           ~ 176 0
167 PSR J2215+1538 Psr 22 15 39.653 +15 38 34.88           ~ 29 0
168 PSR B2217+47 Psr 22 19 48.139 +47 54 53.93           ~ 230 0
169 PSR J2222+2923 Psr 22 23 03.224 +29 23 58.65           ~ 14 0
170 PSR B2223+65 Psr 22 25 52.8627 +65 35 36.371           ~ 342 0
171 PSR B2227+61 Psr 22 29 41.834 +62 05 36.02           ~ 47 0
172 PSR J2242+6950 Psr 22 42 56.40 +69 50 52.1           ~ 27 0
173 PSR J2243+1518 Psr 22 43 09.768 +15 18 25.11           ~ 11 1
174 PSR J2253+1516 Psr 22 53 14.533 +15 16 37.83           ~ 28 0
175 PSR J2302+4442 Psr 23 02 46.9789 +44 42 22.102           ~ 124 0
176 PSR J2305+4707 Psr 23 05 55.842 +47 07 45.32           ~ 227 1
177 PSR B2303+30 Psr 23 05 58.3212 +31 00 01.281           ~ 216 0
178 PSR B2306+55 Psr 23 08 13.822 +55 47 36.03           ~ 70 0
179 PSR B2310+42 Psr 23 13 08.5976 +42 53 12.987           ~ 147 0
180 PSR J2317+1439 Psr 23 17 09.235606 +14 39 31.29559           ~ 211 1
181 PSR B2315+21 Psr 23 17 57.8419 +21 49 48.019           ~ 119 0
182 NAME Sct-Cen PoG ~ ~           ~ 286 0

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