2014ApJS..215...11C


Query : 2014ApJS..215...11C

2014ApJS..215...11C - Astrophys. J., Suppl. Ser., 215, 11 (2014/November-0)

Frequency dependence of pulse width for 150 radio normal pulsars.

CHEN J.L. and WANG H.G.

Abstract (from CDS):

The frequency dependence of the pulse width is studied for 150 normal pulsars, mostly selected from the European Pulsar Network, for which the 10% multifrequency pulse widths can be well fit with the Thorsett relationship W10= Aνµ + W_10, min_. The relative fraction of pulse width change between 0.4 GHz and 4.85 GHz, η = (W4.85- W0.4)/W0.4, is calculated in terms of the best-fit relationship for each pulsar. It is found that 81 pulsars (54%) have η < -10% (group A), showing considerable profile narrowing at high frequencies, 40 pulsars (27%) have -10% ≤ η ≤ 10% (group B), meaning a marginal change in pulse width, and 29 pulsars (19%) have η > 10% (group C), showing a remarkable profile broadening at high frequencies. The fractions of the group-A and group-C pulsars suggest that the profile narrowing phenomenon at high frequencies is more common than the profile broadening phenomenon, but a large fraction of the group-B and group-C pulsars (a total of 46%) is also revealed. The group-C pulsars, together with a portion of group-B pulsars with slight pulse broadening, can hardly be explained using the conventional radius-to-frequency mapping, which only applies to the profile narrowing phenomenon. Based on a recent version of the fan beam model, a type of broadband emission model, we propose that the diverse frequency dependence of pulse width is a consequence of different types of distribution of emission spectra across the emission region. The geometrical effect predicting a link between the emission beam shrinkage and spectrum steepening is tested but disfavored.

Abstract Copyright:

Journal keyword(s): methods: statistical - pulsars: general - radiation mechanisms: non-thermal

Simbad objects: 167

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Number of rows : 167
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 PSR B0011+47 Psr 00 14 17.75 +47 46 33.4           ~ 60 0
2 PSR B0031-07 Psr 00 34 08.9100 -07 21 56.000           ~ 303 0
3 PSR B0037+56 Psr 00 40 32.362 +57 16 24.91           ~ 36 0
4 PSR B0052+51 Psr 00 55 45.378 +51 17 24.97           ~ 44 0
5 PSR B0059+65 Psr 01 02 32.958 +65 37 13.40           ~ 41 0
6 PSR B0105+65 Psr 01 08 22.64 +66 08 34.0           ~ 71 0
7 PSR J0134-2937 Psr 01 34 18.6920 -29 37 17.080           ~ 48 0
8 PSR B0136+57 Psr 01 39 19.744 +58 14 31.73     13.41     ~ 146 0
9 PSR B0138+59 Psr 01 41 39.938 +60 09 32.30     12.85     ~ 110 0
10 PSR B0144+59 Psr 01 47 44.6597 +59 22 03.216           ~ 59 0
11 PSR B0148-06 Psr 01 51 22.7400 -06 35 03.900           ~ 93 0
12 PSR B0149-16 Psr 01 52 10.8520 -16 37 53.900           ~ 113 0
13 PSR B0254-53 Psr 02 55 56.2925 -53 04 21.275           ~ 62 0
14 PSR B0301+19 Psr 03 04 33.115 +19 32 51.40           ~ 213 0
15 PSR B0320+39 Psr 03 23 26.618 +39 44 52.90           ~ 121 0
16 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 611 1
17 PSR B0355+54 Psr 03 58 53.7165 +54 13 13.727           ~ 419 1
18 PSR B0402+61 Psr 04 06 30.046 +61 38 40.92           ~ 79 0
19 PSR B0450-18 Psr 04 52 34.1150 -17 59 23.300           ~ 177 0
20 PSR B0458+46 Psr 05 02 04.561 +46 54 06.09           ~ 79 0
21 PSR B0523+11 Psr 05 25 56.5000 +11 15 19.100           ~ 104 0
22 PSR B0525+21 Psr 05 28 52.308 +22 00 01.00     14.30     ~ 340 0
23 PSR B0538-75 Psr 05 36 30.8200 -75 43 54.800           ~ 62 0
24 PSR B0540+23 Psr 05 43 09.65 +23 29 06.1     14.40     ~ 240 0
25 PSR B0559-05 Psr 06 01 58.9730 -05 27 51.020           ~ 84 0
26 PSR B0609+37 Psr 06 12 44.087 +37 21 40.20           ~ 54 0
27 PSR B0611+22 Psr 06 14 17.25120 +22 30 37.3896           ~ 255 0
28 PSR B0626+24 Psr 06 29 05.728 +24 15 43.30           ~ 102 0
29 PSR B0628-28 Psr 06 30 49.3710 -28 34 42.200           ~ 280 0
30 PSR B0643+80 Psr 06 53 15.090 +80 52 00.22           ~ 60 0
31 PSR B0656+14 Psr 06 59 48.1960 +14 14 19.400   24.85 24.90     ~ 822 1
32 PSR B0727-18 Psr 07 29 32.2900 -18 36 42.210           ~ 84 0
33 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 385 0
34 PSR B0751+32 Psr 07 54 40.688 +32 31 56.20           ~ 77 0
35 PSR B0756-15 Psr 07 58 29.0550 -15 28 08.460           ~ 58 0
36 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 388 0
37 PSR B0818-13 Psr 08 20 26.4020 -13 50 56.400           ~ 197 0
38 PSR J0823+0159 Psr 08 23 09.788 +01 59 12.56           DA 219 0
39 PSR B0823+26 Psr 08 26 51.438 +26 37 22.83           ~ 489 1
40 PSR B0834+06 Psr 08 37 05.642 +06 10 14.56           ~ 413 0
41 PSR B0906-17 Psr 09 08 38.1822 -17 39 37.670           ~ 84 0
42 PSR B0919+06 Psr 09 22 14.1600 +06 38 28.800           ~ 272 0
43 PSR B0942-13 Psr 09 44 28.9700 -13 54 41.900           ~ 76 0
44 PSR B0950+08 Psr 09 53 09.2970 +07 55 36.400           ~ 727 2
45 PSR J1022+10 Psr 10 22 58.011 +10 01 52.85           ~ 202 2
46 PSR B1039-19 Psr 10 41 36.196 -19 42 13.61           ~ 68 0
47 PSR B1112+50 Psr 11 15 38.400 +50 30 12.29           ~ 140 0
48 PSR B1133+16 Psr 11 36 03.0720 +15 51 15.500           ~ 642 0
49 PSR J1141-6545 Psr 11 41 06.97000 -65 45 19.1600     25.08 24.38   ~ 170 1
50 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 442 0
51 PSR B1254-10 Psr 12 57 04.769 -10 27 05.80           ~ 34 0
52 PSR B1504-43 Psr 15 07 34.1560 -43 52 03.800           ~ 35 0
53 PSR B1508+55 Psr 15 09 25.674 +55 31 32.90           ~ 283 1
54 PSR B1530+27 Psr 15 32 10.364 +27 45 49.40           ~ 107 0
55 PSR B1540-06 Psr 15 43 30.1579 -06 20 45.250           ~ 106 0
56 PSR B1552-31 Psr 15 55 17.952 -31 34 20.10           ~ 49 0
57 PSR B1552-23 Psr 15 55 33.184 -23 41 09.90           ~ 38 0
58 PSR B1556-44 Psr 15 59 41.5290 -44 38 45.740           ~ 124 0
59 PSR B1600-27 Psr 16 03 08.063 -27 13 27.60           ~ 42 0
60 PSR B1604-00 Psr 16 07 12.1034 -00 32 40.830           ~ 209 0
61 PSR B1612+07 Psr 16 14 40.906 +07 37 31.00           ~ 87 0
62 PSR B1620-09 Psr 16 23 17.676 -09 08 49.20           ~ 45 0
63 PSR B1642-03 Psr 16 45 02.0330 -03 17 57.200           ~ 340 0
64 PSR J1652-2404 Psr 16 52 58.52 -24 03 51.0           ~ 36 0
65 PSR B1700-32 Psr 17 03 22.5200 -32 41 48.300           ~ 99 0
66 PSR B1700-18 Psr 17 03 51.0900 -18 46 16.000           ~ 49 0
67 PSR B1702-19 Psr 17 05 35.9670 -19 06 39.600           ~ 155 0
68 PSR B1706-16 Psr 17 09 26.4470 -16 40 56.200           ~ 212 0
69 PSR J1713+0447 Psr 17 13 49.53053 +07 47 37.5264           ~ 416 1
70 PSR B1717-16 Psr 17 20 25.2400 -16 33 34.000           ~ 30 0
71 PSR B1717-29 Psr 17 20 34.1100 -29 33 16.000           ~ 64 0
72 PSR B1718-32 Psr 17 22 02.9590 -32 07 45.300           ~ 81 0
73 PSR B1727-47 Psr 17 31 42.103 -47 44 34.56           ~ 137 0
74 PSR B1730-22 Psr 17 33 26.43 -22 28 37.0           ~ 63 0
75 PSR B1732-07 Psr 17 35 04.9717 -07 24 52.490           ~ 55 0
76 PSR B1735-32 Psr 17 38 54.185 -32 11 53.60           ~ 32 0
77 PSR B1737+13 Psr 17 40 07.3455 +13 11 56.690           ~ 165 0
78 PSR B1737-30.2 Psr 17 40 33.82 -30 15 43.5           ~ 204 0
79 PSR B1738-08 Psr 17 41 22.555 -08 40 31.80           ~ 79 0
80 PSR B1742-30 Psr 17 45 56.3250 -30 40 22.600           ~ 156 0
81 PSR B1745-12 Psr 17 48 17.4310 -13 00 53.400           ~ 57 0
82 PSR B1749-28 Psr 17 52 58.7130 -28 06 33.900           ~ 250 0
83 PSR B1811+40 Psr 18 13 13.281 +40 13 39.03           ~ 58 0
84 PSR J1816-2650 Psr 18 16 35.3950 -26 49 54.000           ~ 50 0
85 PSR B1815-14 Psr 18 18 23.8700 -14 22 45.000           ~ 50 0
86 PSR B1818-04 Psr 18 20 52.5920 -04 27 37.120           ~ 200 0
87 PSR B1819-22 Psr 18 22 59.0000 -22 56 38.000           ~ 100 0
88 PSR B1821+05 Psr 18 23 30.9731 +05 50 24.310           ~ 114 0
89 PSR B1820-31 Psr 18 23 46.8160 -31 06 49.200           ~ 62 0
90 PSR B1821-11 Psr 18 24 29.538 -11 18 42.60           ~ 30 0
91 PSR B1822+00 Psr 18 25 15.324 +00 04 19.70           ~ 26 0
92 PSR B1822-09 Psr 18 25 30.5940 -09 35 21.200           ~ 330 0
93 PSR B1831-04 Psr 18 34 25.6320 -04 26 15.200           ~ 86 0
94 PSR B1839+56 Psr 18 40 44.608 +56 40 55.47           ~ 98 0
95 PSR B1839+09 Psr 18 41 55.9380 +09 12 08.300           ~ 112 0
96 PSR B1839-04 Psr 18 42 26.4642900744 -04 00 00.516985452           ~ 63 0
97 PSR B1842+14 Psr 18 44 54.8946 +14 54 14.120           ~ 105 0
98 PSR B1844-04 Psr 18 47 22.8222581784 -04 02 13.031112264           ~ 105 0
99 PSR B1845-19 Psr 18 48 18.03 -19 52 31.0           ~ 70 0
100 PSR B1845-01 Psr 18 48 23.5970 -01 23 58.800           ~ 131 0
101 PSR B1846-06 Psr 18 49 06.4700 -06 37 06.100           ~ 60 0
102 PSR B1848+13 Psr 18 50 35.473 +13 35 58.39           ~ 40 0
103 PSR B1848+12 Psr 18 51 13.215 +12 59 35.29           ~ 37 0
104 PSR B1851-14 Psr 18 54 44.3000 -14 21 19.000           ~ 35 0
105 PSR B1855+02 Psr 18 57 43.6600 +02 12 41.100           ~ 52 0
106 PSR B1857-26 Psr 19 00 47.5440 -26 00 44.200           ~ 167 0
107 PSR B1900+01 Psr 19 03 29.9860 +01 35 38.530           ~ 114 0
108 PSR B1900-06 Psr 19 03 37.9500 -06 32 22.100           ~ 58 0
109 PSR J1906+0749 Psr 19 06 48.67 +07 46 28.6           ~ 121 1
110 PSR B1905+39 Psr 19 07 34.656 +40 02 05.71           ~ 81 0
111 PSR B1907+10 Psr 19 09 48.6222922872 +11 02 02.884778124     13.61     ~ 135 0
112 PSR B1907+03 Psr 19 10 09.06 +03 58 28.0     14.10     ~ 80 0
113 PSR B1911+13 Psr 19 13 24.3574 +14 00 52.720           ~ 61 0
114 PSR B1911-04 Psr 19 13 54.1820 -04 40 47.600           ~ 165 0
115 PSR J1915+1606 Psr 19 15 27.99999 +16 06 27.4034     22.5     ~ 958 1
116 PSR B1915+09 Psr 19 16 32.3520 +09 51 25.100           ~ 84 0
117 PSR B1914+13 Psr 19 16 58.6000 +13 12 52.800           ~ 86 0
118 PSR B1915+13 Psr 19 17 39.7902 +13 53 56.950           ~ 168 0
119 PSR B1916+14 Psr 19 18 23.638 +14 45 06.00           ~ 118 0
120 PSR B1917+00 Psr 19 19 50.6820 +00 21 39.600           ~ 97 0
121 PSR B1919+21 Psr 19 21 44.815 +21 53 02.25           ~ 370 0
122 PSR B1920+21 Psr 19 22 53.531 +21 10 41.97           ~ 91 0
123 PSR B1923+04 Psr 19 26 24.4600 +04 31 31.900           ~ 63 0
124 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 727 0
125 PSR B1930+22 Psr 19 32 22.8565447656 +22 20 52.063074024     14.52     ~ 126 0
126 PSR B1933+16 Psr 19 35 47.7011639352 +16 16 40.034899524           ~ 284 1
127 PSR B1935+25 Psr 19 37 01.2659 +25 44 13.680           ~ 51 0
128 PSR B1937-26 Psr 19 41 00.4140 -26 02 05.700           ~ 69 0
129 PSR B1940-12 Psr 19 43 25.4500 -12 37 44.000     13.76     ~ 53 0
130 PSR J1946-2913 Psr 19 46 51.7500 -29 13 47.400           ~ 43 0
131 PSR B1944+17 Psr 19 46 53.044 +18 05 41.24           ~ 223 0
132 PSR B1946+35 Psr 19 48 25.0067 +35 40 11.057           ~ 160 0
133 PSR B1952+29 Psr 19 54 22.554 +29 23 17.29           ~ 134 0
134 PSR B1953+50 Psr 19 55 18.7637 +50 59 55.292           ~ 84 0
135 PSR B2000+32 Psr 20 02 04.424 +32 17 18.31           ~ 43 0
136 PSR B2000+40 Psr 20 02 44.030 +40 50 53.91           ~ 39 0
137 PSR B2003-08 Psr 20 06 16.3300 -08 07 01.000           ~ 83 0
138 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 342 0
139 PSR B2020+28 Psr 20 22 37.0671 +28 54 23.104           ~ 298 1
140 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 257 1
141 PSR B2022+50 Psr 20 23 41.9427 +50 37 34.858           ~ 40 0
142 PSR B2027+37 Psr 20 29 23.872 +37 44 08.17           ~ 38 0
143 PSR B2044+15 Psr 20 46 39.349 +15 40 33.61           ~ 90 0
144 PSR B2045-16 Psr 20 48 35.7700 -16 16 47.000           ~ 303 0
145 PSR B2053+36 Psr 20 55 31.3552 +36 30 21.489           ~ 92 0
146 PSR B2053+21 Psr 20 55 39.151 +22 09 27.22           ~ 45 0
147 PSR B2106+44 Psr 21 08 20.482 +44 41 48.87           ~ 63 0
148 PSR B2110+27 Psr 21 13 04.3895 +27 54 02.290           ~ 97 0
149 PSR B2111+46 Psr 21 13 24.2 +46 44 09           ~ 198 1
150 PSR B2145-07.8 Psr 21 45 50.45590 -07 50 18.5900           ~ 256 0
151 PSR B2148+63 Psr 21 49 58.59 +63 29 43.5           ~ 84 0
152 PSR B2152-31 Psr 21 55 13.6100 -31 18 52.800           ~ 51 0
153 PSR B2154+40 Psr 21 57 01.840 +40 17 45.89           ~ 140 0
154 PSR B2210+29 Psr 22 12 23.348 +29 33 05.69           ~ 44 0
155 PSR B2217+47 Psr 22 19 48.139 +47 54 53.93           ~ 214 0
156 PSR B2223+65 Psr 22 25 52.36 +65 35 33.8           ~ 313 0
157 PSR B2227+61 Psr 22 29 41.834 +62 05 36.02           ~ 43 0
158 PSR B2255+58 Psr 22 57 57.744 +59 09 14.83     12.59     ~ 87 0
159 PSR B2303+30 Psr 23 05 58.324 +31 00 01.76           ~ 189 0
160 PSR B2306+55 Psr 23 08 13.822 +55 47 36.03           ~ 65 0
161 PSR B2310+42 Psr 23 13 08.5976 +42 53 12.987           ~ 129 0
162 PSR B2315+21 Psr 23 17 57.828 +21 49 48.03           ~ 97 0
163 PSR B2319+60 Psr 23 21 55.213 +60 24 30.71     13.80     ~ 179 0
164 PSR B2324+60 Psr 23 26 58.6970 +61 13 36.468           ~ 62 0
165 PSR B2327-20 Psr 23 30 26.9740 -20 05 29.500           ~ 115 0
166 PSR B2334+61 Psr 23 37 05.779 +61 51 01.69           ~ 179 1
167 PSR B2351+61 Psr 23 54 04.724 +61 55 46.79           ~ 94 0

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2022.11.30-17:33:22

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