2012MNRAS.427.1052B

Query : 2012MNRAS.427.1052B

2012MNRAS.427.1052B - Mon. Not. R. Astron. Soc., 427, 1052-1065 (2012/December-1)

The High Time Resolution Universe Pulsar Survey - VI. An artificial neural network and timing of 75 pulsars.

BATES S.D., BAILES M., BARSDELL B.R., BHAT N.D.R., BURGAY M., BURKE-SPOLAOR S., CHAMPION D.J., COSTER P., D'AMICO N., JAMESON A., JOHNSTON S., KEITH M.J., KRAMER M., LEVIN L., LYNE A., MILIA S., NG C., NIETNER C., POSSENTI A., STAPPERS B., THORNTON D. and VAN STRATEN W.

Abstract (from CDS):

We present 75 pulsars discovered in the mid-latitude portion of the High Time Resolution Universe survey, 54 of which have full timing solutions. All the pulsars have spin periods greater than 100ms, and none of those with timing solutions is in binaries. Two display particularly interesting behaviour; PSR J1054-5944 is found to be an intermittent pulsar, and PSR J1809-0119 has glitched twice since its discovery.

In the second half of the paper we discuss the development and application of an artificial neural network in the data-processing pipeline for the survey. We discuss the tests that were used to generate scores and find that our neural network was able to reject over 99per cent of the candidates produced in the data processing, and able to blindly detect 85per cent of pulsars. We suggest that improvements to the accuracy should be possible if further care is taken when training an artificial neural network; for example, ensuring that a representative sample of the pulsar population is used during the training process, or the use of different artificial neural networks for the detection of different types of pulsars.


Abstract Copyright: © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS

Journal keyword(s): methods: data analysis - stars: neutron - pulsars: general

VizieR on-line data: <Available at CDS (J/MNRAS/427/1052): table3.dat table4.dat tablea1.dat>

Simbad objects: 72

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Number of rows : 72
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 J0737-3039A Psr 07 37 51.24669 -30 39 40.6895           ~ 317 1
2 PSR B0736-40 Psr 07 38 32.2620 -40 42 39.420           ~ 212 0
3 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 445 0
4 PSR B0744-53 Psr 07 45 02.3 -53 51 22           ~ 58 0
5 PSR J0749-4247 Psr 07 49 49.675 -42 47 42.14           ~ 19 0
6 PSR J0807-5421 Psr 08 07 47.185 -54 21 26.46           ~ 6 0
7 PSR B0808-47 Psr 08 09 43.83400 -47 53 54.8500           ~ 61 0
8 PSR J0818-3232 Psr 08 18 25.935 -32 32 30.53           ~ 18 0
9 PSR B0818-41 Psr 08 20 15.46000 -41 14 35.2000           ~ 100 0
10 PSR J0820-3921 Psr 08 20 49.11 -39 21 55.7           ~ 15 0
11 PSR J0821-4221 Psr 08 21 44.636 -42 21 25.46           ~ 15 0
12 PSR J0905-6019 Psr 09 05 15.245 -60 19 22.06           ~ 5 0
13 PSR J0904-4546 Psr 09 05 23.90 -45 36 53.0           ~ 25 0
14 PSR J0912-3851 Psr 09 12 42.70 -38 51 03.0           ~ 11 0
15 PSR J0919-6040 Psr 09 19 27.87 -60 40 50.4           ~ 8 0
16 PSR J0949-6902 Psr 09 49 20.567 -69 02 41.60           ~ 4 0
17 PSR J1036-6559 Psr 10 36 20.040 -65 59 09.27           ~ 5 0
18 PSR J1054-5946 Psr 10 54 30.46 -59 46 31.0           ~ 5 0
19 PSR J1119-6127 Psr 11 19 14.30 -61 27 49.5           ~ 439 1
20 PSR J1143-5536 Psr 11 43 09.8524507560 -55 36 03.949957116           ~ 4 0
21 PSR J1237-6725 Psr 12 37 26.1171224472 -67 25 35.358489696           ~ 11 0
22 PSR J1251-7407 Psr 12 51 52.940 -74 07 15.04           ~ 4 0
23 PSR J1331-5245 Psr 13 31 00.01 -52 45 25.4           ~ 4 0
24 PSR J1346-4918 Psr 13 46 22.35 -49 18 07.2           ~ 6 0
25 PSR J1409-6953 Psr 14 09 16.90 -69 53 34.4           ~ 4 0
26 PSR J1416-5033 Psr 14 16 44.6 -50 33 17           ~ 2 0
27 PSR J1432-5032 Psr 14 32 52.27 -50 32 17.3           ~ 4 0
28 PSR J1443-5122 Psr 14 43 26.97 -51 22 26.0           ~ 6 0
29 PSR J1517-4636 Psr 15 17 29.376 -46 36 00.60           ~ 6 0
30 PSR J1534-4428 Psr 15 34 52.00 -44 28 09.4           ~ 6 0
31 PSR J1551-4424 Psr 15 51 48.02 -44 24 42.0           ~ 5 0
32 PSR J1607-6449 Psr 16 07 48.711 -64 49 43.08           ~ 3 0
33 PSR J1612-5805 Psr 16 12 27.816 -58 05 29.20           ~ 5 0
34 PSR J1622-3751 Psr 16 22 04.58 -37 51 13.9           ~ 7 0
35 PSR J1622-4950 Psr 16 22 44.80000 -49 50 54.5000           ~ 169 0
36 PSR J1625-4913 Psr 16 25 16.41 -49 13 44.6           ~ 5 0
37 PSR J1626-6621 Psr 16 26 06.851 -66 21 15.27           ~ 4 0
38 PSR J1627-59 Psr 16 27 -59.5           ~ 2 0
39 PSR J1627-5936 Psr 16 27 52.59 -59 36 55.3           ~ 5 0
40 PSR J1629-3636 Psr 16 29 35.81 -36 36 13.0           ~ 2 0
41 PSR J1634-5640 Psr 16 34 19.17 -56 40 48.7           ~ 6 0
42 PSR J1647-3607 Psr 16 47 46.51 -36 07 04.0           ~ 9 0
43 PSR J1648-6044 Psr 16 48 51.23 -60 44 25.5           ~ 5 0
44 PSR J1700-4422 Psr 17 00 53.67 -44 22 27.0           ~ 8 0
45 PSR J1705-43 Psr 17 05 06.6906233496 -43 36 42.541537068   11.33 10.92     ~ 3 0
46 PSR J1705-6135 Psr 17 05 15.3 -61 35 15           ~ 2 0
47 PSR J1705-4331 Psr 17 05 35.914 -43 31 13.60           ~ 7 0
48 PSR J1709-4401 Psr 17 09 41.39 -44 01 11.2           ~ 9 0
49 PSR J1710-2616 Psr 17 10 04.9 -26 16 35           ~ 6 0
50 PSR J1716-4711 Psr 17 16 01.109 -47 11 00.90           ~ 6 0
51 PSR J1720-2446 Psr 17 20 22.46 -24 46 27.0           ~ 3 0
52 PSR J1733-5515 Psr 17 33 00.4 -55 15 40           ~ 3 0
53 PSR J1744-5337 Psr 17 44 38.92 -53 37 51.0           ~ 6 0
54 PSR J1745-3812 Psr 17 45 15.42 -38 12 07.3           ~ 5 0
55 PSR J1747-1030 Psr 17 47 58.31 -10 30 05.0           ~ 1 0
56 PSR J1749-4931 Psr 17 49 23.77 -49 31 59.0           ~ 2 0
57 PSR J1754-2422 Psr 17 54 36.56 -24 22 24.0           ~ 2 0
58 PSR J1755-0903 Psr 17 55 10.364 -09 03 51.60           ~ 10 0
59 PSR J1759-1029 Psr 17 59 34.30 -10 29 57.0           ~ 3 0
60 PSR J1802-3346 Psr 18 02 55.2 -33 46 45           ~ 2 0
61 PSR J1803-3329 Psr 18 03 44.453 -33 29 10.70           ~ 6 0
62 PSR J1805-2948 Psr 18 05 42.49 -29 48 00.0           ~ 2 0
63 PSR J1810-01 Psr 18 09 51.36 -01 19 29.0           ~ 9 0
64 PSR J1811-4930 Psr 18 11 27.19 -49 30 20.8           ~ 7 0
65 PSR J1812-2748 Psr 18 12 40.58 -27 48 03.0           ~ 2 0
66 PSR J1812-3039 Psr 18 12 44.902 -30 39 21.00           ~ 5 0
67 PSR J1814-0521 Psr 18 14 26.1712844952 -05 21 37.165380696           ~ 5 0
68 PSR J1840-04 Psr 18 40 25.7 -04 45 55           ~ 2 0
69 PSR J1854-15 Psr 18 54 53.6 -15 57 47           ~ 10 0
70 PSR J1907-1532 Psr 19 07 06.8249401176 -15 32 14.778415428           ~ 4 0
71 PSR J1926+0737 Psr 19 26 33.740 +07 37 07.20           ~ 9 0
72 PSR J1933+2421 Psr 19 33 37.83 +24 36 39.6           ~ 157 0

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