2025ApJS..277...39T

Query : 2025ApJS..277...39T

2025ApJS..277...39T - Astrophys. J., Suppl. Ser., 277, 39 (2025/April-0)

Unveiling the Emission Properties of Three Long-period Pulsars Using FAST.

TEDILA H.M., LI D., WANG P., YUEN R., YUAN J.P., WANG N., WEN Z.G., DANG S.J., TEGEGNE A.G., REJEP R., MIAO C.C. (The FAST Collaboration)

Abstract (from CDS):

We detail the emission behaviors of three long-period pulsars detected using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) during the Commensal Radio Astronomy FAST survey. Their rotational periods range from 1.83-4.75 s, and the null fractions (NFs) measure between 28% and 53%. PSR J1945+1211 and PSR J2323+1214 exhibited quasiperiodic nulls, with durations of around 57 s. The longest null was observed in PSR J1945+1211, lasting 76 s. PSR J2323+1214 displayed varying NFs between its leading and trailing components. For the first time in PSR J2323+1214, we detected five dwarf pulses, which are much weaker and narrower pulses than typical burst pulses. In addition, we investigate the microstructure of PSR J1900-0134 for the first time, revealing intricate pulses of up to 2.05 ms and noting its complex emission characteristics. Bright pulses occur in all of these sources at different rates. These observations suggest complex magnetospheric processes, potentially related to magnetic reconnections, and provide insights into the origins of bright and microstructure pulses, as well as their distinction from ordinary pulses.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio pulsars - Pulsars

Simbad objects: 35

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Number of rows : 35
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 J0211+4235 Psr 02 11 07 +42 35.4           ~ 7 0
3 PSR B0301+19 Psr 03 04 33.115 +19 32 51.40           ~ 247 0
4 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 690 1
5 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
6 PSR B0540-69 Psr 05 40 11.2000490438 -69 19 54.198559829           ~ 976 3
7 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1
8 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 445 0
9 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 425 0
10 PSR B0818-41 Psr 08 20 15.46000 -41 14 35.2000           ~ 100 0
11 PSR B0834+06 Psr 08 37 05.64620 +06 10 15.8700           ~ 472 0
12 PSR J0901-4046 Psr 09 01 29.2490 -40 46 02.984           ~ 48 0
13 PSR B0950+08 Psr 09 53 09.31210 +07 55 36.9000           ~ 806 2
14 PSR J1047-6711 Psr 10 47 28.28500 -67 09 51.6100           ~ 34 0
15 PSR B1112+50 Psr 11 15 38.400 +50 30 12.29           ~ 154 0
16 PSR B1133+16 Psr 11 36 03.09460 +15 51 15.9000           ~ 715 0
17 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 497 1
18 PSR J1611-0114 Psr 16 11 05 -01 14.9           ~ 4 0
19 PSR B1706-16 Psr 17 09 26.45200 -16 40 59.2000           ~ 247 0
20 PSR J1727-2739 Psr 17 27 30.98000 -27 38 53.0000           ~ 51 0
21 PSR J1738-2330 Psr 17 38 08.8 -23 30 47           ~ 21 0
22 PSR J1752+2359 Psr 17 52 35.42 +23 59 48.2           ~ 64 0
23 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 529 2
24 PSR B1822-09 Psr 18 25 30.62000 -09 35 22.0000           ~ 382 0
25 PSR J1900+4221 Psr 19 00 10 +42 20.8           ~ 5 0
26 PSR J1900-0134 Psr 19 00 26.174 -01 34 38.20           ~ 7 0
27 PSR J1909+0122 Psr 19 09 12.10 +01 22 52.7           ~ 3 0
28 PSR J1926-1314 Psr 19 26 53.835 -13 14 03.80           ~ 7 0
29 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
30 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
31 PSR J1945+1211 Psr 19 45 11.56 +12 11 46.2           ~ 6 0
32 PSR B1946+35 Psr 19 48 25.0067 +35 40 11.057           ~ 180 0
33 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 288 1
34 PSR B2111+46 Psr 21 13 24.3295 +46 44 08.844           ~ 226 1
35 PSR J2323+1214 Psr 23 23 21.619 +12 14 12.70           ~ 6 0

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