2013MNRAS.435.1610P

Query : 2013MNRAS.435.1610P

2013MNRAS.435.1610P - Mon. Not. R. Astron. Soc., 435, 1610-1617 (2013/October-3)

Dispersion measure variations in a sample of 168 pulsars.

PETROFF E., KEITH M.J., JOHNSTON S., VAN STRATEN W. and SHANNON R.M.

Abstract (from CDS):

We analyse dispersion measure (DM) variations in six years of radio observations of more than 160 young pulsars, all gamma-ray candidates for the Fermi gamma-ray telescope mostly located close to the Galactic plane. DMs were fitted across 256MHz of bandwidth for observations centred at 1.4GHz and across three frequencies - 0.7, 1.4 and 3.1GHz - where multifrequency observations were available. Changes in dispersion measure, dDM/dt, were calculated using a weighted linear fit across all epochs of available DMs. DM variations were detected at a 3σ level in 11 pulsars, four of which were above 5σ: PSRs J0835-4510, J0908-4913, J1824-1945 and J1833-0827. We find that after 28 years of gradual decline, the DM of PSR J0835-4510 is now increasing. The magnitude of variations in three of the four (PSRs J0835-4510, J0908-4913 and J1833-0827) are above what models would predict for an interstellar medium (ISM) dominated by Kolmogorov turbulence. We attribute this excess as likely due to the pulsar's local environment - the supernova remnants near PSRs J0835-4510 and J1833-0827 and the pulsar wind nebula around PSR J0908-4913. Upper limits were determined for all pulsars without detectable values of dDM/dt, most limits were found to lie above the levels of variations predicted by ISM theory. We find our results to be consistent with scattering estimates from the NE2001 model along these lines of sight.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): pulsars: general - pulsars: individual: PSR J0835-4510 - pulsars: individual: PSR J0908-4913 - pulsars: individual: PSR J1824-1945 - pulsars: individual: PSR J1833-0827 - ISM: structure

CDS comments: In section 4.4, B0830-08 is a misprint for B1830-08.

Simbad objects: 165

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Number of rows : 165
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 J0108-1431 Psr 01 08 08.29 -14 31 48.5           ~ 113 0
2 PSR B0403-76 Psr 04 01 51.75000 -76 08 12.9500           ~ 57 0
3 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
4 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
5 PSR B0538-75 Psr 05 36 30.82900 -75 43 54.6300           ~ 75 0
6 PSR B0540+23 Psr 05 43 09.65 +23 29 06.1     14.40     ~ 278 0
7 PSR B0611+22 Psr 06 14 17.0324288405 +22 29 57.017874999           ~ 285 0
8 PSR J0627+0705 Psr 06 27 44.00 +07 06 00.0           ~ 2 0
9 PSR B0628-28 Psr 06 30 49.35000 -28 34 42.1000           ~ 313 1
10 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1
11 PSR J0729-1448 Psr 07 29 16.45 -14 48 36.8           ~ 71 0
12 PSR B0736-40 Psr 07 38 32.2620 -40 42 39.420           ~ 212 0
13 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 445 0
14 NAME GUM Nebula ISM 07 43 -42.1           ~ 454 1
15 PSR B0744-53 Psr 07 45 02.3 -53 51 22           ~ 58 0
16 PSR J0821-3824 Psr 08 21.0 -38 24           ~ 4 0
17 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
18 PSR J0834-4159 Psr 08 34 16.3 -41 59 51           ~ 34 0
19 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
20 PSR J0855-4644 Psr 08 55 36.160 -46 44 13.46           ~ 62 1
21 PSR J0857-4424 Psr 08 57 55.8823806144 -44 24 10.616717376           ~ 39 0
22 PSR J0901-4624 Psr 09 01 40.110 -46 24 48.45           ~ 30 0
23 PSR J0905-5127 Psr 09 05 51.922 -51 27 48.71           ~ 51 0
24 PSR B0906-49 Psr 09 08 35.46000 -49 13 05.0000           ~ 168 0
25 PSR J0940-5428 Psr 09 40 58.22 -54 28 40.6           ~ 61 0
26 PSR J0954-5430 Psr 09 54 06.04 -54 30 53.5           ~ 34 0
27 PSR B1001-47 Psr 10 03 21.52900 -47 47 01.1900           ~ 56 0
28 PSR J1014-5719 Psr 10 15 37.96 -57 19 12.8           ~ 44 0
29 PSR J1016-5819 Psr 10 16 12.100 -58 19 01.15           ~ 27 0
30 PSR J1016-58 Psr 10 16 21.266 -58 57 11.70           ~ 129 3
31 PSR J1019-5749 Psr 10 19 52.14 -57 49 05.9           ~ 46 0
32 PSR J1020-6026 Psr 10 20 11.40 -60 26 06.8           ~ 20 0
33 PSR J1028-5819 Psr 10 28 27.888 -58 19 06.14           ~ 122 1
34 PSR J1043-6116 Psr 10 43 55.22200 -61 16 51.2900           ~ 32 0
35 PSR B1046-58 Psr 10 48 13.10000 -58 32 03.0000           ~ 293 0
36 PSR J1052-5954 Psr 10 52 38.15 -59 54 46.1           ~ 23 0
37 PSR J1055-6028 Psr 10 56 11.87 -60 27 12.7           ~ 48 1
38 PSR B1055-52 Psr 10 57 59.0450 -52 26 56.330           ~ 757 0
39 PSR J1105-6107 Psr 11 05 26.1400 -61 07 48.940           ~ 129 0
40 PSR J1112-6103 Psr 11 12 14.81 -61 03 31.1           ~ 77 0
41 PSR J1115-6052 Psr 11 15 53.68 -60 52 17.8           ~ 26 0
42 PSR J1119-6127 Psr 11 19 14.30 -61 27 49.5           ~ 439 1
43 PSR J1123-6256 Psr 11 23 55.53000 -62 59 10.9200           ~ 39 0
44 PSR J1138-6207 Psr 11 38 21.62 -62 07 59.3           ~ 26 0
45 PSR J1156-5707 Psr 11 56 07.45 -57 07 01.9           ~ 22 0
46 PSR J1216-6223 Psr 12 16 41.89 -62 23 57.8           ~ 17 0
47 PSR B1221-63 Psr 12 24 22.2740 -64 07 53.834           ~ 122 0
48 PSR J1248-6344 Psr 12 48 46.36 -63 44 09.6           ~ 16 0
49 CPD-63 2495 HXB 13 02 47.6544015048 -63 50 08.626970292 10.34 10.72 9.98 10.03   O9.5Ve 852 0
50 PSR J1301-6305 Psr 13 02 47.9992676 -63 10 48.001099           ~ 139 2
51 PSR J1305-6203 Psr 13 05 20.90 -62 03 21.6           ~ 26 0
52 PSR B1317-53 Psr 13 20 53.93200 -53 59 04.9670           ~ 59 0
53 PSR J1327-6400 Psr 13 27 10.27 -64 00 13.1           ~ 23 0
54 PSR B1338-62 Psr 13 41 42.63 -62 20 20.7           ~ 152 1
55 PSR J1349-6130 Psr 13 49 36.65 -61 30 17.1           ~ 33 0
56 PSR J1357-6429 Psr 13 57 02.525 -64 29 29.89           ~ 171 1
57 PSR B1356-60 Psr 13 59 58.2480 -60 38 07.550           ~ 131 0
58 PSR J1406-6121 Psr 14 06 50.04 -61 21 27.9           ~ 29 0
59 PSR J1410-6132 Psr 14 10 24.000 -61 32 00.00           ~ 133 1
60 PSR J1412-6145 Psr 14 12 07.69 -61 45 28.8           ~ 45 1
61 PSR J1413-6141 Psr 14 13 09.87 -61 41 13.0           ~ 44 1
62 PSR J1420-6048 Psr 14 20 08.190 -60 48 14.85           ~ 214 0
63 PSR J1452-6036 Psr 14 52 51.80000 -60 36 30.0000           ~ 31 0
64 PSR J1452-5851 Psr 14 52 52.58 -58 51 13.3           ~ 21 0
65 PSR B1449-64 Psr 14 53 32.6546 -64 13 16.047           ~ 158 0
66 PSR B1451-68 Psr 14 56 00.0175876848 -68 43 40.034742348           ~ 203 0
67 PSR J1509-5850 Psr 15 09 27.153 -58 50 56.05           ~ 131 0
68 PSR B1508-57 Psr 15 12 43.13000 -58 00 00.4300           ~ 52 0
69 PSR B1509-58 Psr 15 13 47.6 -59 07 54     13.06     ~ 879 1
70 PSR J1514-5925 Psr 15 14 59.10 -59 25 43.3           ~ 26 0
71 PSR J1515-5720 Psr 15 15 09.3 -57 20 49           ~ 19 0
72 PSR J1524-5706 Psr 15 24 21.43 -57 06 35.0           ~ 28 0
73 PSR J1524-5625 Psr 15 24 49.820 -56 25 24.07           ~ 36 0
74 PSR J1530-5327 Psr 15 30 26.87 -53 27 56.3           ~ 32 0
75 PSR J1531-5610 Psr 15 31 27.91 -56 10 55.0           ~ 59 0
76 PSR J1538-5551 Psr 15 38 45.03 -55 51 36.9           ~ 22 0
77 PSR B1535-56 Psr 15 39 14.07000 -56 26 26.2000           ~ 64 0
78 PSR J1541-5535 Psr 15 41 49.6 -55 35 01           ~ 22 0
79 PSR J1543-5459 Psr 15 43 56.25 -54 59 13.7           ~ 25 0
80 PSR J1548-5607 Psr 15 48 43.8746461512 -56 07 35.458209840           ~ 30 0
81 PSR J1549-4848 Psr 15 49 21.02700 -48 48 36.1000           ~ 55 0
82 PSR J1551-5310 Psr 15 51 41.25 -53 10 59.6           ~ 24 0
83 PSR B1556-57 Psr 16 00 19.93 -57 51 14.7           ~ 45 0
84 PSR B1557-50 Psr 16 00 53.0150 -50 44 21.300           ~ 119 0
85 PSR J1601-5335 Psr 16 01 54.91 -53 35 43.2           ~ 25 0
86 PSR B1558-50 Psr 16 02 18.7300 -51 00 06.100           ~ 104 0
87 PSR B1607-52 Psr 16 11 03.20 -52 09 23.6           ~ 48 0
88 PSR J1614-5048 Psr 16 14 11.29 -50 48 03.5           ~ 128 0
89 PSR J1632-4757 Psr 16 32 16.7704844928 -47 57 33.931138860           ~ 29 0
90 PSR J1632-48 Psr 16 32 39.94 -48 18 52.8           ~ 36 0
91 PSR J1637-4642 Psr 16 37 13.77 -46 42 15.0           ~ 40 0
92 PSR B1634-45 Psr 16 37 58.710 -45 53 27.30           ~ 60 0
93 PSR J1638-4608 Psr 16 38 22.98 -46 08 11.6           ~ 31 0
94 PSR J1638-4417 Psr 16 38 46.22 -44 17 03.6           ~ 22 0
95 PSR B1636-47 Psr 16 40 13.19 -47 15 35.3           ~ 36 0
96 PSR J1643-4505 Psr 16 43 36.97 -45 05 46.0           ~ 22 0
97 PSR B1643-43 Psr 16 46 50.86 -43 45 53.7           ~ 77 1
98 PSR J1648-4611 Psr 16 48 22.02 -46 11 16.0           ~ 73 0
99 PSR J1649-4653 Psr 16 49 24.5 -46 53 09           ~ 26 0
100 PSR J1650-4502 Psr 16 50 32.30 -45 02 37.3           ~ 19 0
101 PSR J1650-4921 Psr 16 50 35.100 -49 21 03.88           ~ 21 0
102 PSR J1702-4310 Psr 17 02 26.94 -43 10 41.5           ~ 30 0
103 PSR J1702-4305 Psr 17 02 27.290 -43 06 44.00           ~ 18 1
104 PSR J1702-4128 Psr 17 02 52.52 -41 28 48.2           ~ 72 0
105 PSR J1705-3950 Psr 17 05 29.84 -39 50 59.0           ~ 45 0
106 PSR B1702-19 Psr 17 05 36.09300 -19 06 39.2000           ~ 191 1
107 PSR B1706-44 Psr 17 09 42.62000 -44 29 12.0000     13.30     ~ 670 1
108 PSR J1715-3903 Psr 17 15 14.3 -39 03 02           ~ 28 0
109 PSR J1718-3825 Psr 17 18 13.558 -38 25 17.83           ~ 108 0
110 PSR B1718-35 Psr 17 21 32.76 -35 32 48.3           ~ 86 0
111 PSR B1719-37 Psr 17 22 59.17000 -37 12 03.0000           ~ 107 0
112 PSR J1723-3659 Psr 17 23 07.580 -36 59 13.90           ~ 45 0
113 PSR J1726-3530 Psr 17 26 07.51 -35 29 58.0           ~ 37 0
114 PSR B1727-33 Psr 17 30 32.559 -33 50 39.40           ~ 130 1
115 PSR B1727-47 Psr 17 31 42.21000 -47 44 38.7000           ~ 166 0
116 PSR B1730-37 Psr 17 33 26.754 -37 16 54.60           ~ 54 0
117 PSR B1732-32.9 Psr 17 35 56.9 -32 58 19           ~ 18 0
118 PSR B1733-31.5 Psr 17 37 04.29 -31 37 21.0           ~ 30 0
119 PSR B1735-29.8 Psr 17 38 52.24 -29 55 51.0           ~ 23 0
120 PSR B1736-29 Psr 17 39 34.28500 -29 03 03.9600           ~ 86 0
121 PSR J1739-3023 Psr 17 39 39.85 -30 23 11.2           ~ 54 0
122 PSR B1737-30.2 Psr 17 40 33.98000 -30 15 22.0000           ~ 236 0
123 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
124 PSR B1742-30 Psr 17 45 56.30810 -30 40 23.3000           ~ 182 0
125 PSR J1756-2225 Psr 17 56 25.6 -22 25 48           ~ 15 0
126 PSR B1754-24 Psr 17 57 29.37000 -24 19 54.0000           ~ 102 0
127 PSR B1757-24 Psr 18 01 00.016 -24 51 27.50           ~ 258 1
128 PSR J1801-2154 Psr 18 01 08.3 -21 54 32           ~ 18 0
129 PSR B1758-23 Psr 18 01 19.8149 -23 04 44.630           ~ 153 0
130 PSR B1800-21 Psr 18 03 51.40000 -21 37 07.0000           ~ 278 1
131 PSR J1806-2124 Psr 18 06 19.59 -21 25 40.0           ~ 42 0
132 PSR J1809-1917 Psr 18 09 43.147 -19 17 38.10           ~ 128 1
133 PSR J1815-1738 Psr 18 15 14.67 -17 38 03.0           ~ 28 0
134 PSR J1820-1529 Psr 18 20 40.8 -15 29 50           ~ 20 0
135 PSR B1821-19 Psr 18 24 00.43600 -19 45 44.5000           ~ 101 0
136 PSR B1822-14 Psr 18 25 02.927 -14 46 52.60           ~ 92 0
137 PSR B1822-09 Psr 18 25 30.62000 -09 35 22.0000           ~ 382 0
138 PSR B1823-13 Psr 18 26 13.06 -13 34 48.1           ~ 460 1
139 PSR J1828-1101 Psr 18 28 18.849 -11 01 50.90           ~ 63 0
140 PSR J1828-1057 Psr 18 28 33.2 -10 57 26           ~ 22 0
141 PSR B1828-10 Psr 18 30 47.566 -10 59 27.90           ~ 190 1
142 PSR B1829-08 Psr 18 32 37.01300 -08 27 03.1600           ~ 79 0
143 PSR B1830-08 Psr 18 33 40.24500 -08 27 30.9000           ~ 155 1
144 PSR J1834-0731 Psr 18 34 16.0 -07 31 07           ~ 29 0
145 SNR G023.3-00.3 SNR 18 34 51.80 -08 44 38.2           ~ 240 0
146 PSR B1832-06 Psr 18 35 05.56 -06 43 06.9     13.18     ~ 63 0
147 PSR J1835-1106 Psr 18 35 18.287 -11 06 15.10           ~ 75 0
148 PSR J1835-0944 Psr 18 35 46.7 -09 44 29           ~ 22 0
149 PSR J1837-0559 Psr 18 37 23.663 -05 59 28.30           ~ 30 0
150 PSR B1835-06.1 Psr 18 37 43.55 -06 04 49.0           ~ 77 0
151 PSR B1835-04.9 Psr 18 38 11.19 -04 53 23.0           ~ 32 0
152 PSR J1838-0549 Psr 18 38 38.1 -05 49 12           ~ 32 0
153 PSR B1836-03.3 Psr 18 39 37.515 -03 21 10.50           ~ 20 0
154 PSR J1839-0905 Psr 18 39 53.4698607744 -09 05 14.177174460           ~ 22 0
155 PSR B1838-04 Psr 18 41 05.66300 -04 25 19.5000           ~ 66 0
156 PSR J1841-0524 Psr 18 41 49.3553989200 -05 24 30.551758848           ~ 43 0
157 PSR J1842-0905 Psr 18 42 22.138 -09 05 24.60           ~ 29 0
158 PSR B1840-03.9 Psr 18 43 06.67 -03 55 56.0           ~ 21 0
159 PSR J1843-0702 Psr 18 43 22.44 -07 02 54.6           ~ 29 0
160 PSR B1841-05 Psr 18 44 05.108 -05 38 34.19           ~ 54 0
161 AX J1844.8-0258 HXB 18 44 53 -02 56.0           ~ 126 0
162 PSR B1842-04 Psr 18 45 34.709 -04 34 29.80           ~ 45 0
163 PSR J1845-0743 Psr 18 45 57.17630 -07 43 38.1600           ~ 38 0
164 PSR B1844-04 Psr 18 47 22.8222581784 -04 02 13.031112264           ~ 125 0
165 PSR J1853-0004 Psr 18 53 23.02 -00 04 32.3           ~ 46 0

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