2025MNRAS.543.3814Y

Query : 2025MNRAS.543.3814Y

2025MNRAS.543.3814Y - Mon. Not. R. Astron. Soc., 543, 3814-3829 (2025/November-2)

A study of 80 known pulsars at 185 MHz using MWA incoherent drift-scan observations.

YU T., GONG H., GAO Z., ZHANG Z., WEN Z., WANG Y. and AN T.

Abstract (from CDS):

A systematic study of 80 known pulsars observed at 185 MHz has been conducted using archival incoherent-sum data from the Murchison Widefield Array (MWA). The data set comprises 48 drift-scan observations from the MWA Voltage Capture System, covering $\sim$30 000 deg$^2$ of sky with sensitivities reaching $\sim$8 mJy in the deepest regions. An optimized PRESTO-based search pipeline was deployed on the China SKA Regional Centre infrastructure. This enabled the detection of 80 known pulsars - representing a $\sim$60 per cent increase over the previous census. Notably, this includes 30 pulsars with first-time detections at this frequency, of which pulse profiles and flux densities are presented. Spectral, scattering, and pulse-width properties were examined for the sample, providing observational constraints on low-frequency turnover, propagation effects, and width-period relations. This study highlights the value of wide-field, low-frequency time-domain surveys for constraining pulsar emission and propagation, offering empirical insights that may inform future observations with instruments such as SKA-Low.

Abstract Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): scattering - catalogues - stars: neutron - pulsars: general

Simbad objects: 84

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Number of rows : 84
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 B0031-07 Psr 00 34 08.9100 -07 21 56.000           ~ 350 0
2 PSR J0034-05 Psr 00 34 21.8281 -05 34 36.620           ~ 201 0
3 PSR B0149-16 Psr 01 52 10.85400 -16 37 53.6300           ~ 130 0
4 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 690 1
5 PSR J0418-4154 Psr 04 18 03.77480 -41 54 14.4200           ~ 11 0
6 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 1032 0
7 PSR B0450-18 Psr 04 52 34.11900 -17 59 23.1500           ~ 203 1
8 PSR J0520-2553 Psr 05 20 36.185 -25 53 12.29           ~ 26 0
9 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
10 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
11 PSR B0559-05 Psr 06 01 58.97310 -05 27 50.9200           ~ 102 0
12 PSR B0628-28 Psr 06 30 49.35000 -28 34 42.1000           ~ 313 1
13 Gaia DR3 5566254014771398912 ** 07 04 13.1869864222 -37 06 14.523234469           M3V+WD 20 0
14 PSR J0735-62 Psr 07 35 05.0 -63 02 00           ~ 12 0
15 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 445 0
16 NAME GUM Nebula ISM 07 43 -42.1           ~ 454 1
17 PSR B0818-41 Psr 08 20 15.46000 -41 14 35.2000           ~ 100 0
18 PSR B0818-13 Psr 08 20 26.40700 -13 50 56.3200           ~ 229 0
19 PSR J0823+0159 Psr 08 23 09.78731 +01 59 12.6003           DA 244 0
20 PSR B0823+26 Psr 08 26 51.5068 +26 37 21.297           ~ 541 1
21 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
22 PSR B0834+06 Psr 08 37 05.64620 +06 10 15.8700           ~ 472 0
23 PSR B0835-41 Psr 08 37 21.1943 -41 35 14.563     12.69     ~ 149 0
24 PSR B0853-33 Psr 08 55 38.42100 -33 31 38.9900           ~ 57 0
25 PSR B0855-61 Psr 08 56 59.27000 -61 37 52.7100           ~ 34 0
26 PSR B0906-17 Psr 09 08 38.22700 -17 39 39.9000           ~ 100 0
27 PSR B0919+06 Psr 09 22 13.85000 +06 38 19.0000           ~ 329 1
28 PSR B0922-52 Psr 09 24 08.72200 -53 02 42.6000           ~ 48 0
29 PSR B0932-52 Psr 09 34 28.23700 -52 49 27.3000           ~ 55 0
30 PSR B0940-55 Psr 09 42 14.88000 -55 52 55.1000           ~ 101 0
31 PSR B0941-56 Psr 09 42 54.42200 -56 57 43.2100           ~ 54 0
32 PSR B0942-13 Psr 09 44 28.96700 -13 54 41.8800           ~ 87 0
33 PSR B0943+10 Psr 09 46 07.31 +09 51 57.3           ~ 364 1
34 PSR B0950+08 Psr 09 53 09.31210 +07 55 36.9000           ~ 806 2
35 PSR B0953-52 Psr 09 55 29.46100 -53 04 16.6400           ~ 50 0
36 PSR B0957-47 Psr 09 59 26.21200 -48 09 47.4700           ~ 47 0
37 PSR B0959-54 Psr 10 01 37.85000 -55 07 07.8000           ~ 113 0
38 PSR B1010-23 Psr 10 12 33.72 -23 38 22.4           ~ 36 0
39 PSR B1055-52 Psr 10 57 59.0450 -52 26 56.330           ~ 757 0
40 PSR B1056-57 Psr 10 59 00.88860 -57 42 14.5500           ~ 51 0
41 PSR B1110-69 Psr 11 12 50.78000 -69 26 32.3300           ~ 31 0
42 PSR B1114-41 Psr 11 16 43.08300 -41 22 44.8600           ~ 61 0
43 PSR B1133+16 Psr 11 36 03.09460 +15 51 15.9000           ~ 715 0
44 PSR J1141-6545 Psr 11 41 07.00060 -65 45 19.0500     25.08 24.38   ~ 207 1
45 PSR J1140-3107 Psr 11 41 25.629 -31 07 52.60           ~ 19 0
46 PSR B1221-63 Psr 12 24 22.2740 -64 07 53.834           ~ 122 0
47 PSR J1234-3630 Psr 12 34 12.00 -36 30 41.1           ~ 5 0
48 PSR B1352-51 Psr 13 55 58.69200 -51 53 53.9500     12.89     ~ 32 0
49 PSR J1418-3921 Psr 14 18 50.28000 -39 21 18.6000           ~ 27 0
50 PSR B1426-66 Psr 14 30 40.73200 -66 23 05.5460           ~ 102 0
51 PSR B1449-64 Psr 14 53 32.6546 -64 13 16.047           ~ 158 0
52 PSR B1451-68 Psr 14 56 00.0175876848 -68 43 40.034742348           ~ 203 0
53 PSR B1504-43 Psr 15 07 34.17500 -43 52 04.0500           ~ 45 0
54 PSR B1507-44 Psr 15 10 48.9 -44 22 07           ~ 25 0
55 PSR B1530-53 Psr 15 34 08.3012586672 -53 34 20.547404184           ~ 80 0
56 PSR B1540-06 Psr 15 43 30.1373 -06 20 45.332           ~ 131 1
57 PSR B1541+09 Psr 15 43 38.82000 +09 29 16.4000           ~ 215 1
58 PSR B1604-00 Psr 16 07 12.078 -00 32 40.98           ~ 228 1
59 PSR B1642-03 Psr 16 45 02.0330 -03 17 57.200           ~ 394 0
60 PSR B1706-16 Psr 17 09 26.45200 -16 40 59.2000           ~ 247 0
61 PSR B1707-53 Psr 17 11 53.13000 -53 50 18.3000           ~ 31 0
62 PSR B1727-47 Psr 17 31 42.21000 -47 44 38.7000           ~ 166 0
63 PSR B1747-46 Psr 17 51 42.18500 -46 57 26.7200           ~ 124 0
64 PSR B1749-28 Psr 17 52 58.70700 -28 06 36.0000           ~ 277 1
65 PSR B1818-04 Psr 18 20 52.5920 -04 27 37.120           ~ 230 0
66 PSR B1820-31 Psr 18 23 46.81900 -31 06 48.0000           ~ 80 0
67 PSR B1822-09 Psr 18 25 30.62000 -09 35 22.0000           ~ 382 0
68 [HRM2023] GPM J1839-10 Psr 18 39 02.000 -10 31 49.37           ~ 35 0
69 PSR B1857-26 Psr 19 00 47.54200 -26 00 44.8000           ~ 195 1
70 PSR B1907+10 Psr 19 09 48.6222922872 +11 02 02.884778124     13.61     ~ 155 0
71 PSR B1915+13 Psr 19 17 39.79400 +13 53 57.1600           ~ 190 0
72 PSR B1919+21 Psr 19 21 44.815 +21 53 02.25           ~ 411 0
73 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
74 PSR B1933+16 Psr 19 35 47.7011639352 +16 16 40.034899524           ~ 328 1
75 PSR B1940-12 Psr 19 43 25.46100 -12 37 42.9000     13.76     ~ 69 0
76 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 374 0
77 PSR B2020+28 Psr 20 22 37.0671 +28 54 23.104           ~ 330 1
78 PSR B2043-04 Psr 20 46 00.17600 -04 21 26.3000           ~ 87 0
79 PSR B2045-16 Psr 20 48 35.74000 -16 16 45.0000           ~ 344 0
80 PSR B2145-07.8 Psr 21 45 50.45590 -07 50 18.5900           ~ 336 0
81 PSR B2217+47 Psr 22 19 48.139 +47 54 53.93           ~ 230 0
82 PSR J2241-5236 Psr 22 41 42.03161 -52 36 36.2492           ~ 143 1
83 PSR J2256-1024 Psr 22 56 56.390 -10 24 34.37           ~ 88 0
84 PSR B2327-20 Psr 23 30 26.98600 -20 05 29.7500           ~ 133 0

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