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= Aν^µ + W_10, min_. The relative fraction of pulse width change between 0.4 GHz and 4.85 GHz, η = (W_4.85- W_0.4)/W_0.4, 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

Full paper

View the references in ADS

Number of rows : 167

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2026	#notes
1	PSR B0011+47	Psr	00 14 17.75	+47 46 33.4				~	67	0
2	PSR B0031-07	Psr	00 34 08.9100	-07 21 56.000				~	350	0
3	PSR B0037+56	Psr	00 40 32.3899	+57 16 24.833				~	44	0
4	PSR B0052+51	Psr	00 55 45.3981	+51 17 24.601				~	52	0
5	PSR B0059+65	Psr	01 02 32.9914	+65 37 13.416				~	47	0
6	PSR B0105+65	Psr	01 08 22.5049	+66 08 34.499				~	81	0
7	PSR J0134-2937	Psr	01 34 18.69390	-29 37 17.1570				~	60	0
8	PSR B0136+57	Psr	01 39 19.744	+58 14 31.73		13.41		~	163	0
9	PSR B0138+59	Psr	01 41 39.938	+60 09 32.30		12.85		~	120	0
10	PSR B0144+59	Psr	01 47 44.6434	+59 22 03.284				~	69	0
11	PSR B0148-06	Psr	01 51 22.71800	-06 35 02.9800				~	112	0
12	PSR B0149-16	Psr	01 52 10.85400	-16 37 53.6300				~	130	0
13	PSR B0254-53	Psr	02 55 56.2925	-53 04 21.275				~	71	0
14	PSR B0301+19	Psr	03 04 33.115	+19 32 51.40				~	247	0
15	PSR B0320+39	Psr	03 23 26.6619	+39 44 52.403				~	139	0
16	PSR B0329+54	Psr	03 32 59.3370698592	+54 34 45.028206408				~	690	1
17	PSR B0355+54	Psr	03 58 53.7165	+54 13 13.727				~	465	1
18	PSR B0402+61	Psr	04 06 30.0806	+61 38 41.408				~	90	1
19	PSR B0450-18	Psr	04 52 34.11900	-17 59 23.1500				~	203	1
20	PSR B0458+46	Psr	05 02 04.561	+46 54 06.09				~	96	0
21	PSR B0523+11	Psr	05 25 56.49800	+11 15 18.8000				~	125	1
22	PSR B0525+21	Psr	05 28 52.308	+22 00 01.00		14.30		~	370	0
23	PSR B0538-75	Psr	05 36 30.82900	-75 43 54.6300				~	75	0
24	PSR B0540+23	Psr	05 43 09.65	+23 29 06.1		14.40		~	278	0
25	PSR B0559-05	Psr	06 01 58.97310	-05 27 50.9200				~	102	0
26	PSR B0609+37	Psr	06 12 44.087	+37 21 40.20				~	62	0
27	PSR B0611+22	Psr	06 14 17.0324288405	+22 29 57.017874999				~	285	0
28	PSR B0626+24	Psr	06 29 05.7273	+24 15 41.546				~	123	0
29	PSR B0628-28	Psr	06 30 49.35000	-28 34 42.1000				~	313	1
30	PSR B0643+80	Psr	06 53 15.090	+80 52 00.22				~	65	0
31	PSR B0656+14	Psr	06 59 48.18800	+14 14 19.2000	24.85	24.90		~	943	1
32	PSR B0727-18	Psr	07 29 32.2900	-18 36 42.210				~	102	0
33	PSR B0740-28	Psr	07 42 49.0730	-28 22 43.510				~	445	0
34	PSR B0751+32	Psr	07 54 40.688	+32 31 56.20				~	88	0
35	PSR B0756-15	Psr	07 58 29.06100	-15 28 08.3330				~	72	0
36	PSR B0809+74	Psr	08 14 59.500	+74 29 05.70				~	425	0
37	PSR B0818-13	Psr	08 20 26.40700	-13 50 56.3200				~	229	0
38	PSR J0823+0159	Psr	08 23 09.78731	+01 59 12.6003				DA	244	0
39	PSR B0823+26	Psr	08 26 51.5068	+26 37 21.297				~	541	1
40	PSR B0834+06	Psr	08 37 05.64620	+06 10 15.8700				~	472	0
41	PSR B0906-17	Psr	09 08 38.22700	-17 39 39.9000				~	100	0
42	PSR B0919+06	Psr	09 22 13.85000	+06 38 19.0000				~	329	1
43	PSR B0942-13	Psr	09 44 28.96700	-13 54 41.8800				~	87	0
44	PSR B0950+08	Psr	09 53 09.31210	+07 55 36.9000				~	806	2
45	PSR J1022+10	Psr	10 22 57.990	+10 01 52.92				~	279	2
46	PSR B1039-19	Psr	10 41 36.19100	-19 42 13.7000				~	80	0
47	PSR B1112+50	Psr	11 15 38.400	+50 30 12.29				~	154	0
48	PSR B1133+16	Psr	11 36 03.09460	+15 51 15.9000				~	715	0
49	PSR J1141-6545	Psr	11 41 07.00060	-65 45 19.0500		25.08	24.38	~	207	1
50	PSR B1237+25	Psr	12 39 40.386	+24 53 49.87				~	497	1
51	PSR B1254-10	Psr	12 57 04.77960	-10 27 04.7700				~	50	0
52	PSR B1504-43	Psr	15 07 34.17500	-43 52 04.0500				~	45	0
53	PSR B1508+55	Psr	15 09 25.674	+55 31 32.90				~	322	1
54	PSR B1530+27	Psr	15 32 10.3646	+27 45 49.623				~	122	0
55	PSR B1540-06	Psr	15 43 30.1373	-06 20 45.332				~	131	1
56	PSR B1552-31	Psr	15 55 17.94700	-31 34 20.3000				~	60	0
57	PSR B1552-23	Psr	15 55 33.184	-23 41 09.90				~	43	0
58	PSR B1556-44	Psr	15 59 41.5290	-44 38 45.740				~	140	0
59	PSR B1600-27	Psr	16 03 08.03600	-27 13 27.0000				~	53	0
60	PSR B1604-00	Psr	16 07 12.078	-00 32 40.98				~	228	1
61	PSR B1612+07	Psr	16 14 40.906	+07 37 31.00				~	101	0
62	PSR B1620-09	Psr	16 23 17.65800	-09 08 48.9000				~	59	0
63	PSR B1642-03	Psr	16 45 02.0330	-03 17 57.200				~	394	0
64	PSR J1652-2404	Psr	16 52 58.50000	-24 03 54.0000				~	41	0
65	PSR B1700-32	Psr	17 03 22.51400	-32 41 48.5000				~	117	0
66	PSR B1700-18	Psr	17 03 51.10200	-18 46 13.0000				~	64	0
67	PSR B1702-19	Psr	17 05 36.09300	-19 06 39.2000				~	191	1
68	PSR B1706-16	Psr	17 09 26.45200	-16 40 59.2000				~	247	0
69	PSR J1713+0747	Psr	17 13 49.5367813	+07 47 37.450240				~	530	1
70	PSR B1717-16	Psr	17 20 25.23000	-16 33 35.0000				~	41	0
71	PSR B1717-29	Psr	17 20 34.13100	-29 33 14.0000				~	80	0
72	PSR B1718-32	Psr	17 22 02.96410	-32 07 45.0700				~	101	0
73	PSR B1727-47	Psr	17 31 42.21000	-47 44 38.7000				~	166	0
74	PSR B1730-22	Psr	17 33 26.43000	-22 28 37.0000				~	68	0
75	PSR B1732-07	Psr	17 35 04.9730	-07 24 52.130				~	74	0
76	PSR B1735-32	Psr	17 38 54.185	-32 11 53.60				~	42	0
77	PSR B1737+13	Psr	17 40 07.3455	+13 11 56.690				~	191	0
78	PSR B1737-30.2	Psr	17 40 33.98000	-30 15 22.0000				~	236	0
79	PSR B1738-08	Psr	17 41 22.5629	-08 40 31.711				~	98	0
80	PSR B1742-30	Psr	17 45 56.30810	-30 40 23.3000				~	182	0
81	PSR B1745-12	Psr	17 48 17.4310	-13 00 53.400				~	68	0
82	PSR B1749-28	Psr	17 52 58.70700	-28 06 36.0000				~	277	1
83	PSR B1811+40	Psr	18 13 13.281	+40 13 39.03				~	67	0
84	PSR J1816-2650	Psr	18 16 35.39900	-26 49 53.0000				~	59	0
85	PSR B1815-14	Psr	18 18 23.77000	-14 22 39.0000				~	61	0
86	PSR B1818-04	Psr	18 20 52.5920	-04 27 37.120				~	230	0
87	PSR B1819-22	Psr	18 22 58.95000	-22 56 29.0000				~	123	0
88	PSR B1821+05	Psr	18 23 30.9731	+05 50 24.310				~	136	0
89	PSR B1820-31	Psr	18 23 46.81900	-31 06 48.0000				~	80	0
90	PSR B1821-11	Psr	18 24 29.538	-11 18 42.60				~	37	0
91	PSR B1822+00	Psr	18 25 15.324	+00 04 19.70				~	34	0
92	PSR B1822-09	Psr	18 25 30.62000	-09 35 22.0000				~	382	0
93	PSR B1831-04	Psr	18 34 25.62100	-04 26 15.7000				~	103	0
94	PSR B1839+56	Psr	18 40 44.5372	+56 40 54.852				~	109	1
95	PSR B1839+09	Psr	18 41 55.92100	+09 12 07.2900				~	134	0
96	PSR B1839-04	Psr	18 42 26.4642900744	-04 00 00.516985452				~	81	0
97	PSR B1842+14	Psr	18 44 54.8946	+14 54 14.120				~	127	0
98	PSR B1844-04	Psr	18 47 22.8222581784	-04 02 13.031112264				~	125	0
99	PSR B1845-19	Psr	18 48 18.03	-19 52 31.0				~	74	0
100	PSR B1845-01	Psr	18 48 23.59600	-01 23 58.4800				~	154	0
101	PSR B1846-06	Psr	18 49 06.46470	-06 37 06.9100				~	74	0
102	PSR B1848+13	Psr	18 50 35.473	+13 35 58.39				~	49	0
103	PSR B1848+12	Psr	18 51 13.2375743628	+12 59 35.328125251				~	48	0
104	PSR B1851-14	Psr	18 54 44.3000	-14 21 19.000				~	41	0
105	PSR B1855+02	Psr	18 57 43.65400	+02 12 41.0000				~	65	0
106	PSR B1857-26	Psr	19 00 47.54200	-26 00 44.8000				~	195	1
107	PSR B1900+01	Psr	19 03 29.9860	+01 35 38.530				~	133	0
108	PSR B1900-06	Psr	19 03 37.93400	-06 32 21.5200				~	66	0
109	PSR J1906+0749	Psr	19 06 48.67	+07 46 28.6				~	172	1
110	PSR B1905+39	Psr	19 07 34.656	+40 02 05.71				~	93	0
111	PSR B1907+10	Psr	19 09 48.6222922872	+11 02 02.884778124		13.61		~	155	0
112	PSR B1907+03	Psr	19 10 09.01600	+03 58 30.0000		14.10		~	99	0
113	PSR B1911+13	Psr	19 13 24.35200	+14 00 52.5000				~	75	0
114	PSR B1911-04	Psr	19 13 54.16240	-04 40 47.5600				~	192	0
115	PSR J1915+1606	Psr	19 15 27.99999	+16 06 27.4034		22.5		~	1032	1
116	PSR B1915+09	Psr	19 16 32.33300	+09 51 25.9700				~	100	0
117	PSR B1914+13	Psr	19 16 58.67000	+13 12 50.0000				~	99	0
118	PSR B1915+13	Psr	19 17 39.79400	+13 53 57.1600				~	190	0
119	PSR B1916+14	Psr	19 18 23.638	+14 45 06.00				~	130	0
120	PSR B1917+00	Psr	19 19 50.67000	+00 21 39.8000				~	120	0
121	PSR B1919+21	Psr	19 21 44.815	+21 53 02.25				~	411	0
122	PSR B1920+21	Psr	19 22 53.531	+21 10 41.97				~	98	0
123	PSR B1923+04	Psr	19 26 24.47200	+04 31 31.5400				~	75	0
124	PSR B1929+10	Psr	19 32 14.0570	+10 59 33.380				~	801	0
125	PSR B1930+22	Psr	19 32 22.8565447656	+22 20 52.063074024		14.52		~	149	0
126	PSR B1933+16	Psr	19 35 47.7011639352	+16 16 40.034899524				~	328	1
127	PSR B1935+25	Psr	19 37 01.2544	+25 44 13.436				~	60	0
128	PSR B1937-26	Psr	19 41 00.41690	-26 02 05.8840				~	84	0
129	PSR B1940-12	Psr	19 43 25.46100	-12 37 42.9000		13.76		~	69	0
130	PSR J1946-2913	Psr	19 46 51.75700	-29 13 48.1000				~	53	0
131	PSR B1944+17	Psr	19 46 53.044	+18 05 41.24				~	252	0
132	PSR B1946+35	Psr	19 48 25.0067	+35 40 11.057				~	180	0
133	PSR B1952+29	Psr	19 54 22.5107	+29 23 16.150				~	149	0
134	PSR B1953+50	Psr	19 55 18.7637	+50 59 55.292				~	90	0
135	PSR B2000+32	Psr	20 02 04.424	+32 17 18.31				~	51	0
136	PSR B2000+40	Psr	20 02 44.030	+40 50 53.91				~	53	0
137	PSR B2003-08	Psr	20 06 16.36500	-08 07 02.1600				~	113	0
138	PSR B2016+28	Psr	20 18 03.8999255016	+28 39 54.940329468				~	374	0
139	PSR B2020+28	Psr	20 22 37.0671	+28 54 23.104				~	330	1
140	PSR B2021+51	Psr	20 22 49.8730	+51 54 50.233				~	288	1
141	PSR B2022+50	Psr	20 23 41.9427	+50 37 34.858				~	46	0
142	PSR B2027+37	Psr	20 29 23.872	+37 44 08.17				~	46	0
143	PSR B2044+15	Psr	20 46 39.33600	+15 40 33.6000				~	109	0
144	PSR B2045-16	Psr	20 48 35.74000	-16 16 45.0000				~	344	0
145	PSR B2053+36	Psr	20 55 31.3552	+36 30 21.489				~	103	0
146	PSR B2053+21	Psr	20 55 39.151	+22 09 27.22				~	55	0
147	PSR B2106+44	Psr	21 08 20.57	+44 41 49.4				~	71	1
148	PSR B2110+27	Psr	21 13 04.3506	+27 54 01.160				~	115	0
149	PSR B2111+46	Psr	21 13 24.3295	+46 44 08.844				~	226	1
150	PSR B2145-07.8	Psr	21 45 50.45590	-07 50 18.5900				~	336	0
151	PSR B2148+63	Psr	21 49 58.7033	+63 29 44.277				~	96	0
152	PSR B2152-31	Psr	21 55 13.64000	-31 18 53.8000				~	62	0
153	PSR B2154+40	Psr	21 57 01.840	+40 17 45.89				~	155	0
154	PSR B2210+29	Psr	22 12 23.3444	+29 33 05.411				~	54	0
155	PSR B2217+47	Psr	22 19 48.139	+47 54 53.93				~	230	0
156	PSR B2223+65	Psr	22 25 52.8627	+65 35 36.371				~	342	0
157	PSR B2227+61	Psr	22 29 41.834	+62 05 36.02				~	47	0
158	PSR B2255+58	Psr	22 57 57.744	+59 09 14.83		12.59		~	96	0
159	PSR B2303+30	Psr	23 05 58.3212	+31 00 01.281				~	216	0
160	PSR B2306+55	Psr	23 08 13.822	+55 47 36.03				~	70	0
161	PSR B2310+42	Psr	23 13 08.5976	+42 53 12.987				~	147	0
162	PSR B2315+21	Psr	23 17 57.8419	+21 49 48.019				~	119	0
163	PSR B2319+60	Psr	23 21 55.213	+60 24 30.71		13.80		~	200	0
164	PSR B2324+60	Psr	23 26 58.6970	+61 13 36.468				~	65	0
165	PSR B2327-20	Psr	23 30 26.98600	-20 05 29.7500				~	133	0
166	PSR B2334+61	Psr	23 37 05.779	+61 51 01.69				~	206	1
167	PSR B2351+61	Psr	23 54 04.7830	+61 55 46.845				~	102	0

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