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相关论文: The Radiation Structure of PSR B2016$+$28 Observed…

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We report on new results from simultaneous, dual frequency, single pulse observation of PSR B0329+54 using the Giant Metrewave Radio Telescope. We find that the longitude separation of subpulses at two different frequencies (238 and 612…

天体物理学 · 物理学 2009-11-07 J. Gil , Y. Gupta , I. B. Ghothoskar , J. Kijak

Individual radio pulses from a pulsar are directly linked to the underlying emission processes and the associated magnetic field geometry within its magnetosphere. Thus, single-pulse studies across frequencies can provide crucial insights…

高能天体物理现象 · 物理学 2026-01-27 Shyam S. Sharma , Tetsuya Hashimoto , Tomotsugu Goto , Sanjay Kudale , Sujin Eie , Simon C. -C. Ho

In this paper we demonstrate that a large, unexplored reservoir of information about pulsar emission exists, that is directly linked to the radiating particles and their radiation process: We present a study of flux density measurements of…

天体物理学 · 物理学 2009-11-10 M. Kramer , A. Karastergiou , Y. Gupta , S. Johnston , N. D. R. Bhat , A. G. Lyne

We present a detailed single-pulse analysis for PSR B1929+10 based on observations with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The main pulse and interpulse are found to be modulated with a periodicity of $\sim12$…

高能天体物理现象 · 物理学 2021-03-24 F. F. Kou , W. M. Yan , B. Peng , J. G. Lu , K. Liu , C. M. Zhang , R. G. Strom , L. Wang , J. P. Yuan , Rai Yuen , Y. Z. Yu , J. M. Yao , B. Liu , J. Yan , P. Jiang , C. J. Jin , D. Li , L. Qian , Y. L. Yue , Y. Zhu

We report results from simultaneous radio and X-ray observations of PSR B0611+22 which is known to exhibit bursting in its single-pulse emission. The pulse phase of the bursts vary with radio frequency. The bursts are correlated in…

In this work, we observe the nearby pulsar, PSR B1929$+$10, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We find, for the first time, two new emission components with an extremely weak observed flux density of…

高能天体物理现象 · 物理学 2025-07-02 Zhengli Wang , Jiguang Lu , Weiyang Wang , Shunshun Cao , Jinchen Jiang , Jiangwei Xu , Kejia Lee , Enwei Liang , Hongguang Wang , Renxin Xu

We report on the variation in the single-pulse emission from PSR J1900+4221 (CRAFTS 19C10) observed at frequency centered at 1.25 GHz using the Five-hundred-meter Aperture Spherical radio Telescope. The integrated pulse profile shows two…

Individual subpulses of pulsars are regarded as the basic emission components, providing invaluable information to understand the radio emission process in the pulsar magnetosphere. Nevertheless, subpulses are overlapped with each other…

高能天体物理现象 · 物理学 2024-01-11 Tao Wang , C. Wang , J. L. Han , N. N. Cai , W. C. Jing , Yi Yan , P. F. Wang

The frequency widening of pulsar profiles is commonly attributed to lower frequencies being produced at greater heights above the surface of the pulsar; so-called radius-to-frequency mapping. The observer's view of pulsar emission is a 1D…

高能天体物理现象 · 物理学 2019-08-07 Lucy Oswald , Aris Karastergiou , Simon Johnston

We utilized archived data from the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) to analyze the single-pulse profile morphology of PSR J1935$+$1616 (B1933$+$16). The results show that PSR J1935$+$1616 exhibits significant…

Here we report on observations of the radio magnetar PSR J1622-4950 at frequencies from 1.4 to 17 GHz. We show that although its flux density is varying up to a factor of ~10 within a few days, it has on average decreased by a factor of 2…

Aims. We aim to elucidate the pulsar radio emission by studying several single-pulse phenomena, how they relate, and how they evolve with observing frequency. We intend to inspire models for the pulsar radio emission and fast radio bursts.…

高能天体物理现象 · 物理学 2025-03-19 F. Jankowski , J. -M. Griessmeier , M. Surnis , G. Theureau , J. Petri

The phenomenon of sub-pulse drifting is an important single-pulse phenomenon that can potentially provide important insights into the elusive radio emission mechanism in pulsars. We analyze the frequency behaviour of the single pulses of…

高能天体物理现象 · 物理学 2023-07-26 Samuel J. McSweeney , Lisa Smith , N. D. Ramesh Bhat , Geoff Wright

We present a detailed study of the single radio pulses of PSR B0656+14, a pulsar also known to be a strong pulsed source of high-energy emission. Despite the extensive studies at high-energy wavelengths, there is little or no published work…

天体物理学 · 物理学 2009-11-11 P. Weltevrede , G. A. E. Wright , B. W. Stappers , J. M. Rankin

We show the results of microsecond resolution radio data analysis focused on flux measurements of single pulses of PSR B1133+16. The data were recorded at 4.85 GHz and 8.35 GHz with 0.5 GHz and 1.1 GHz bandwidth, respectively, using Radio…

太阳与恒星天体物理 · 物理学 2015-06-19 K. Krzeszowski , O. Maron , A. Słowikowska , J. Dyks , A. Jessner

PSR B0950+08 is a bright non-recycled pulsar whose single-pulse fluence variability is reportedly large. Based on observations at two widely separated frequencies, 55 MHz (NenuFAR) and 1.4 GHz (Westerbork Synthesis Radio Telescope), we…

We report on a study of microstructure and its quasi-periodicities of three pulsars at 1.65 GHz with the S2 VLBI system at a resolution of 62.5 ns, by far the highest for any such statistical study yet. For PSR B1929+10 we found in the…

天体物理学 · 物理学 2009-11-06 M. V. Popov , N. Bartel , W. H. Cannon , A. Yu. Novikov , V. I. Kondratiev , V. I. Altunin

We present the first results from a programme of multi-frequency simultaneous single pulse observations carried out as part of the European Pulsar Network. We detail the main data analysis methods and apply them to simultaneous observations…

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