Investigation of Individual Pulse Emission Behaviors from Pulsar J1741-0840

被引：0
|
作者：
Xu, Y. H. [1 ]
Wen, Z. G. [2 ,8 ]
Yuan, J. P. [2 ]
Wang, Z. [2 ,3 ,5 ]
Duan, X. F. [2 ,4 ]
Wang, Z. [2 ,3 ,5 ]
Wang, N. [2 ]
Wang, M. [1 ]
Wang, H. G. [6 ]
Rusul, A. [7 ]
Hao, L. F. [1 ]
Han, W. [2 ]
机构：
[1] Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China
[2] Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
[3] Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Xinjiang, Peoples R China
[4] Key Lab Microwave Technol, Urumqi 830011, Xinjiang, Peoples R China
[5] Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
[6] Guangzhou Univ, Sch Phys & Mat Sci, Guangzhou 510006, Guangdong, Peoples R China
[7] Kashi Univ, Inst Phys & Elect Engn, Kashgar 844009, Xinjiang, Peoples R China
[8] Chinese Acad Sci, Key Lab Radio Astron & Technol, Beijing 100101, Peoples R China
来源：
ASTROPHYSICAL JOURNAL | 2024年 / 977卷 / 01期
基金：
中国国家自然科学基金;
关键词：
SINGLE-PULSE; STATISTICAL-ANALYSIS; SUBPULSE MODULATION; RADIO PULSARS; FLUX-DENSITY; POLARIZATION; PROFILES; NULLS; POLARIMETRY; FREQUENCIES;
D O I：
10.3847/1538-4357/ad7fe2
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 individual pulse emission from the pulsar J1741-0840 (B1738-08) observed using the Parkes and Effelsberg radio telescopes at the L band. The pulsar exhibits four emission components, which are not well resolved by employing multicomponent Gaussian fitting. The radio emission originates at a height of approximately 1000 km, with the viewing geometry characterized by inclination and impact angles roughly estimated at 81 degrees and 3 degrees, respectively. Fluctuation spectral analysis of single pulse behavior reveals two prominent periodicities, around 32 and five rotation periods. The longer periodic modulation feature is linked to nulling behavior across the entire emission window, with an updated nulling fraction of 23% +/- 2% derived from pulse energy distribution via Gaussian mixture modeling. In addition to quasiperiodic nulling, the pulsar also exhibits the presence of subpulse drifting in the trailing component, with the shorter periodic feature in the fluctuation spectra related to the phenomenon of subpulse drifting, and the longitudinal separation estimated to be about 5 degrees. Both periodic modulations show significant temporal evolution with time-dependent fluctuation power. The implications of understanding the radio emission mechanisms are discussed.
引用
收藏
页数：12
相关论文
共 50 条
  • [31] A possible explanation of the TeV emission from the pulsar wind nebula HESS J1825-137
    Lu, Fang-Wu
    Zhu, Bo-Tao
    Hu, Wen
    Zhang, Li
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 518 (03) : 3949 - 3958
  • [32] Possible modulated γ-ray emission from the transitional millisecond pulsar binary PSR J1023+0038
    Yi Xing
    Zhong-Xiang Wang
    Jumpei Takata
    ResearchinAstronomyandAstrophysics, 2018, 18 (10) : 111 - 118
  • [33] X-ray emission from the 63 ms radio pulsar PSR J1105-6107
    Gotthelf, EV
    Kaspi, VM
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 69 (1-3) : 261 - 264
  • [34] Detection of radio emission from the gamma-ray pulsar J1732-3131 at 327 MHz
    Maan, Yogesh
    Krishnakumar, M. A.
    Naidu, Arun K.
    Roy, Subhashis
    Joshi, Bhal Chandra
    Kerr, Matthew
    Manoharan, P. K.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 471 (01) : 541 - 547
  • [35] Radio profile instability in the millisecond pulsar PSR J0437-4715 resulting from spiky emission
    Vivekanand, M
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 326 (02) : L33 - L36
  • [36] VARIABILITY OF THE PULSED RADIO EMISSION FROM THE LARGE MAGELLANIC CLOUD PULSAR PSR J0529-6652
    Crawford, F.
    Altemose, D.
    Li, H.
    Lorimer, D. R.
    ASTROPHYSICAL JOURNAL, 2013, 762 (02):
  • [37] Search for Very High-energy Emission from the Millisecond Pulsar PSR J0218+4232
    Acciari, V. A.
    Ansoldi, S.
    Antonelli, L. A.
    Engels, A. Arbet
    Artero, M.
    Asano, K.
    Baack, D.
    Babic, A.
    Baquero, A.
    de Almeida, U. Barres
    Barrio, J. A.
    Becerra Gonzalez, J.
    Bednarek, W.
    Bellizzi, L.
    Bernardini, E.
    Bernardos, M.
    Berti, A.
    Besenrieder, J.
    Bhattacharyya, W.
    Bigongiari, C.
    Biland, A.
    Blanch, O.
    Bonnoli, G.
    Bosnjak, Z.
    Busetto, G.
    Carosi, R.
    Ceribella, G.
    Cerruti, M.
    Chai, Y.
    Chilingarian, A.
    Cikota, S.
    Colak, S. M.
    Colombo, E.
    Contreras, J. L.
    Cortina, J.
    Covino, S.
    D'Amico, G.
    D'Elia, V
    Da Vela, P.
    Dazzi, F.
    De Angelis, A.
    De Lotto, B.
    Delfino, M.
    Delgado, J.
    Delgado Mendez, C.
    Depaoli, D.
    Di Pierro, F.
    Di Venere, L.
    Do Souto Espineira, E.
    Prester, D. Dominis
    ASTROPHYSICAL JOURNAL, 2021, 922 (02):
  • [38] On the nature of the X-ray emission from the accreting millisecond pulsar SAX J1808.4-3658
    Poutanen, J
    Gierlinski, M
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2003, 343 (04) : 1301 - 1311
  • [39] Discovery of X-ray emission from the young radio pulsar PSR J1357-6429
    Esposito, P.
    Tiengo, A.
    De Luca, A.
    Mattana, F.
    ASTRONOMY & ASTROPHYSICS, 2007, 467 (02) : L45 - L48
  • [40] Updated Spin and Orbital Parameters and Energy Dependent Pulse Behaviors of the Accreting Millisecond X-Ray Pulsar IGR J17591-2342
    Tse, Kaho
    Chou, Yi
    Hsieh, Hung-En
    ASTROPHYSICAL JOURNAL, 2020, 899 (02):
12345