2025RAA....25a5001C

Query : 2025RAA....25a5001C

2025RAA....25a5001C - Research in Astron. and astroph., 25, part no 1, 5001 (2025/January-0)

Statistical Research on Megahertz-peaked Spectra Pulsars.

CAI H.-B., CHEN L., LI S.-D., WANG K. and LIU H.

Abstract (from CDS):

Megahertz-peaked spectra (MPS) pulsars are referred as cases whose radio spectra turn over around 100 MHz. We identified 53 MPS pulsars based on the spectral data from the literature, and statistically analyzed the spatial location distribution, the magnetic field-period distribution, peak frequencies, spectral indices, and dispersion measures of these MPS pulsars. We found that there is a strong positive correlation between the dispersion measures and the peak frequencies of MPS pulsars, and negative correlations of the dispersion measures with spectral indices and the ages are also found. Such correlations suggest that the interstellar medium is an important factor that affects observational properties of MPS pulsars.

Abstract Copyright: © 2025 National Astronomical Observatories, CAS and IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

Journal keyword(s): (stars:) pulsars: general - radio continuum: general - ISM: general

Simbad objects: 81

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Number of rows : 81
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 B0138+59 Psr 01 41 39.938 +60 09 32.30     12.85     ~ 120 0
3 PSR B0301+19 Psr 03 04 33.115 +19 32 51.40           ~ 247 0
4 PSR J0318+0253 Psr 03 18 15.54 +02 53 01.5           ~ 32 0
5 PSR B0320+39 Psr 03 23 26.6619 +39 44 52.403           ~ 139 0
6 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 690 1
7 PSR B0355+54 Psr 03 58 53.7165 +54 13 13.727           ~ 465 1
8 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 1032 0
9 PSR B0450-18 Psr 04 52 34.11900 -17 59 23.1500           ~ 203 1
10 PSR B0525+21 Psr 05 28 52.308 +22 00 01.00     14.30     ~ 370 0
11 PSR B0540+23 Psr 05 43 09.65 +23 29 06.1     14.40     ~ 278 0
12 PSR B0611+22 Psr 06 14 17.0324288405 +22 29 57.017874999           ~ 285 0
13 PSR B0628-28 Psr 06 30 49.35000 -28 34 42.1000           ~ 313 1
14 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1
15 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 445 0
16 PSR B0808-47 Psr 08 09 43.83400 -47 53 54.8500           ~ 61 0
17 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 425 0
18 PSR B0818-13 Psr 08 20 26.40700 -13 50 56.3200           ~ 229 0
19 PSR B0823+26 Psr 08 26 51.5068 +26 37 21.297           ~ 541 1
20 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
21 PSR B0834+06 Psr 08 37 05.64620 +06 10 15.8700           ~ 472 0
22 PSR B0919+06 Psr 09 22 13.85000 +06 38 19.0000           ~ 329 1
23 PSR B0932-52 Psr 09 34 28.23700 -52 49 27.3000           ~ 55 0
24 PSR B0941-56 Psr 09 42 54.42200 -56 57 43.2100           ~ 54 0
25 PSR B0940+16 Psr 09 43 30.10 +16 31 37.0           ~ 79 0
26 PSR B0943+10 Psr 09 46 07.31 +09 51 57.3           ~ 364 1
27 PSR B0950+08 Psr 09 53 09.31210 +07 55 36.9000           ~ 806 2
28 PSR B0959-54 Psr 10 01 37.85000 -55 07 07.8000           ~ 113 0
29 PSR J1012+5307 Psr 10 12 33.4345449600 +53 07 02.548542576     19.5     DA 419 1
30 PSR B1055-52 Psr 10 57 59.0450 -52 26 56.330           ~ 757 0
31 PSR B1112+50 Psr 11 15 38.400 +50 30 12.29           ~ 154 0
32 PSR B1133+16 Psr 11 36 03.09460 +15 51 15.9000           ~ 715 0
33 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 497 1
34 PSR B1322+83 Psr 13 21 45.6315 +83 23 39.432           ~ 70 0
35 PSR B1449-64 Psr 14 53 32.6546 -64 13 16.047           ~ 158 0
36 PSR B1451-68 Psr 14 56 00.0175876848 -68 43 40.034742348           ~ 203 0
37 PSR B1508+55 Psr 15 09 25.674 +55 31 32.90           ~ 322 1
38 PSR B1530+27 Psr 15 32 10.3646 +27 45 49.623           ~ 122 0
39 PSR B1540-06 Psr 15 43 30.1373 -06 20 45.332           ~ 131 1
40 PSR B1541+09 Psr 15 43 38.82000 +09 29 16.4000           ~ 215 1
41 PSR B1604-00 Psr 16 07 12.078 -00 32 40.98           ~ 228 1
42 PSR B1612+07 Psr 16 14 40.906 +07 37 31.00           ~ 101 0
43 PSR B1633+24 Psr 16 35 25.781 +24 18 47.30           ~ 74 0
44 PSR B1642-03 Psr 16 45 02.0330 -03 17 57.200           ~ 394 0
45 PSR B1648-42 Psr 16 51 48.79700 -42 46 09.9700           ~ 72 0
46 PSR B1706-16 Psr 17 09 26.45200 -16 40 59.2000           ~ 247 0
47 PSR J1741+2758 Psr 17 41 53.51 +27 58 09.0           ~ 26 0
48 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
49 PSR B1742-30 Psr 17 45 56.30810 -30 40 23.3000           ~ 182 0
50 PSR B1749-28 Psr 17 52 58.70700 -28 06 36.0000           ~ 277 1
51 PSR B1818-04 Psr 18 20 52.5920 -04 27 37.120           ~ 230 0
52 PSR B1822-09 Psr 18 25 30.62000 -09 35 22.0000           ~ 382 0
53 V* V479 Sct HXB 18 26 15.0561548880 -14 50 54.247274304 12.02 12.23 11.27 11.04   ON6V((f))z 613 2
54 PSR B1826-17 Psr 18 29 43.15000 -17 51 13.0000           ~ 136 0
55 PSR B1834-10 Psr 18 36 53.92200 -10 08 09.3900           ~ 66 0
56 PSR B1839+56 Psr 18 40 44.5372 +56 40 54.852           ~ 109 1
57 PSR B1842+14 Psr 18 44 54.8946 +14 54 14.120           ~ 127 0
58 PSR B1845-01 Psr 18 48 23.59600 -01 23 58.4800           ~ 154 0
59 PSR B1905+39 Psr 19 07 34.656 +40 02 05.71           ~ 93 0
60 PSR B1911-04 Psr 19 13 54.16240 -04 40 47.5600           ~ 192 0
61 PSR B1919+21 Psr 19 21 44.815 +21 53 02.25           ~ 411 0
62 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
63 PSR B1933+16 Psr 19 35 47.7011639352 +16 16 40.034899524           ~ 328 1
64 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
65 PSR B1944+17 Psr 19 46 53.044 +18 05 41.24           ~ 252 0
66 PSR B1946+35 Psr 19 48 25.0067 +35 40 11.057           ~ 180 0
67 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 374 0
68 PSR B2020+28 Psr 20 22 37.0671 +28 54 23.104           ~ 330 1
69 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 288 1
70 PSR B2044+15 Psr 20 46 39.33600 +15 40 33.6000           ~ 109 0
71 PSR B2045-16 Psr 20 48 35.74000 -16 16 45.0000           ~ 344 0
72 PSR B2111+46 Psr 21 13 24.3295 +46 44 08.844           ~ 226 1
73 PSR B2145-07.8 Psr 21 45 50.45590 -07 50 18.5900           ~ 336 0
74 PSR B2148+63 Psr 21 49 58.7033 +63 29 44.277           ~ 96 0
75 PSR B2154+40 Psr 21 57 01.840 +40 17 45.89           ~ 155 0
76 PSR B2217+47 Psr 22 19 48.139 +47 54 53.93           ~ 230 0
77 PSR B2223+65 Psr 22 25 52.8627 +65 35 36.371           ~ 342 0
78 PSR B2255+58 Psr 22 57 57.744 +59 09 14.83     12.59     ~ 96 0
79 PSR B2303+30 Psr 23 05 58.3212 +31 00 01.281           ~ 216 0
80 PSR B2319+60 Psr 23 21 55.213 +60 24 30.71     13.80     ~ 200 0
81 PSR B2351+61 Psr 23 54 04.7830 +61 55 46.845           ~ 102 0

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