Exploring the Individual Pulse Behavior of Pulsar J1701-3726 with Parkes

被引：7

作者：

Wang, H. ^{[1
]}

Wen, Z. G. ^{[2
]}

Duan, X. F. ^{[2
,3
]}

Wang, Z. ^{[2
,4
]}

He, D. L. ^{[2
]}

Wang, H. G. ^{[2
,5
]}

Wang, N. ^{[2
]}

Yuan, J. P. ^{[2
]}

Yan, W. M. ^{[2
]}

Yuen, R. ^{[2
]}

Han, W. ^{[2
]}

Zhi, Q. J. ^{[6
]}

Xiang, B. B. ^{[7
]}

Dang, S. J. ^{[6
]}

Chen, J. L. ^{[1
]}

Lyu, C. B. ^{[5
]}

Wang, J. P. ^{[1
]}

Ergesh, T. ^{[8
]}

机构：

[1] Yuncheng Univ, Dept Phys & Elect Engn, Yuncheng 044000, Shanxi, Peoples R China

[2] Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China

[3] Key Lab Microwave Technol, Urumqi 830011, Xinjiang, Peoples R China

[4] Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Xinjiang, Peoples R China

[5] Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Peoples R China

[6] Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Guizhou, Peoples R China

[7] Xinjiang Univ, Sch Mech Engn, Urumqi 830017, Xinjiang, Peoples R China

[8] Jihua Lab, Foshan 528200, Guangdong, Peoples R China

来源：

ASTROPHYSICAL JOURNAL | 2023年 / 950卷 / 02期

基金：

中国国家自然科学基金;

关键词：

NONRADIAL OSCILLATION MODEL; DRIFTING SUBPULSES; FLUCTUATION SPECTRA; RADIO PULSAR; EMISSION; MODULATION; PROFILES; GEOMETRY; MECHANISM; NULLS;

D O I：

10.3847/1538-4357/acd17b

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have carried out a detailed study of polarimetric individual pulse emission from the pulsar J1701-3726 (B1658-37), observed at 1369 MHz using the Parkes 64 m radio telescope. The single-pulse sequences reveal the presence of the three major emission phenomena of pulse nulling, mode changing, and subpulse drifting. Trimodal distribution of the pulse energy is present, implying one population of nulls and two others of emission in the phase window. The mean flux density of the normal mode is almost two times that of the abnormal mode. Our data show that, for PSR J1701-3726, 64% of the time was spent in the normal mode and 12% was in the abnormal mode. The single pulses show the presence of two distinct periodic modulations using a fluctuation spectral analysis. About 24% of the nulls are found to create alternating bunches of nulls and bursts in a quasiperiodic manner with a longer periodicity of 48 & PLUSMN; 4 rotational periods. Additionally, the pulsar presents a steady even-odd modulated feature with a stationary longitude within the pulse window. The ramifications for constraining the viewing geometry and understanding the radio emission mechanisms are discussed.

引用

页数：11

共 3 条

[1] PSR J1701-3726脉冲消零现象研究
蔡沿庆
李清莹
田杰
李威
党世军
尚伦华
许鑫
支启军
吴家超
天文学报, 2024, 65 (05) : 105 - 111
[2] Investigation of Individual Pulse Emission Behaviors from Pulsar J1741-0840
Xu, Y. H.
Wen, Z. G.
Yuan, J. P.
Wang, Z.
Duan, X. F.
Wang, Z.
Wang, N.
Wang, M.
Wang, H. G.
Rusul, A.
Hao, L. F.
Han, W.
ASTROPHYSICAL JOURNAL, 2024, 977 (01):
[3] Individual pulse emission from the diffuse drifter PSR J1401-6357 using the ultrawideband receiver on the Parkes radio telescope
Chen, J. L.
Wen, Z. G.
Duan, X. F.
He, D. L.
Wang, N.
Wang, H. G.
Yuen, R.
Yuan, J. P.
Yan, W. M.
Wang, Z.
Lyu, C. B.
Wang, H.
Cui, S. R.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 519 (02) : 2709 - 2717

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