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相关论文: Single pulses from PSR B1641-45

200 篇论文

We present recent improvements in polarization analysis with the INTEGRAL SPI data. The SPI detector plane consists of 19 independent Ge crystals and can operate as a polarimeter. The anisotropy characteristics of Compton diffusions can…

天体物理仪器与方法 · 物理学 2015-06-15 M. Chauvin , J. P. Roques , D. J. Clark , E. Jourdain

We have conducted the Meterwavelength Single-pulse Polarimetric Emission Survey to study the radio emission properties of normal pulsars. A total of 123 pulsars with periods between 0.1 seconds and 8.5 seconds were observed in the survey at…

We present the flux density measurements of the pulsars observed in the Meterwavelength single-pulse polarimetric emission survey. The average flux densities were estimated in 113 pulsars at two frequencies of 325 and 610 MHz using…

高能天体物理现象 · 物理学 2021-08-25 Rahul Basu , Dipanjan Mitra , George I. Melikidze

The single-pulse properties of the millisecond radio pulsar PSR B1937+21 are studied in the 1410 MHz radio band. Aside from occasional ``giant pulses'' occurring in restricted regions of pulse phase, the emission appears to be remarkably…

天体物理学 · 物理学 2009-11-10 Fredrick A. Jenet , Janusz Gil

We have detected sporadic, bright, short-duration radio pulses from PSR J0901$-$4624. These pulses are emitted simultaneously with persistent, periodic emission that dominates the flux density when averaging over many periods of the pulsar.…

太阳与恒星天体物理 · 物理学 2015-06-24 C. A. Raithel , R. M. Shannon , S. Johnston , M. Kerr

PSR J1717-4054 is one of the small class of pulsars which null on intermediate (~hour) timescales. Such pulsars represent an important link between classical nullers, whose emission vanishes for a few rotations, and the intermittent pulsars…

太阳与恒星天体物理 · 物理学 2015-06-22 Matthew Kerr , George Hobbs , Ryan Shannon , Mitchell Kiczynski , Robert Hollow , Simon Johnston

The paper presents the timing and spectral analysis of several observations of the Crab pulsar performed with INTEGRAL in the energy range 3-500 keV. All these observations, when summed together provide a high statistics data set which can…

天体物理学 · 物理学 2009-11-11 T. Mineo , C. Ferrigno , L. Foschini , A. Segreto , G. Cusumano , G. Malaguti , G. Di Cocco , C. Labanti

We have analyzed the polarization properties of pulsars at an observing frequency of 4.9 GHz. Together with low frequency data, we are able to trace polarization profiles over more than three octaves into an interesting frequency regime. At…

天体物理学 · 物理学 2007-05-23 A. von Hoensbroech , J. Kijak , A. Krawczyk

We present spectra of pulsed gamma-ray emission expected from millisecond pulsars within the framework of polar-cap models. The spectra are a superposition of three components due to curvature (CR), synchrotron (SR), and Compton…

天体物理学 · 物理学 2007-05-23 Tomasz Bulik , Bronislaw Rudak

A Fosters equivalent circuit for 2-D Planar Periodic Structures (PPSs) that exhibit an arbitrary geometry is presented for first time in this paper. The proposed 4-port network shows an invariant circuit topology to the PPS geometry and is…

应用物理 · 物理学 2024-02-07 Gerardo Perez-Palomino , Juan E Page

A simple mathematical model for GRB pulses is postulated in both time and energy. The model breaks GRB pulses up into component functions, one general light curve function exclusively in the time dimension and four component functions…

高能天体物理现象 · 物理学 2015-05-30 Robert J. Nemiroff

PSR B1237+25 is perhaps the canonical example of a pulsar with a core/double cone profile. Moreover, it is bright with little spectral turnover, and its profile perhaps uniquely remains undistorted by scattering far into the decametric…

Radio pulsar polarization exhibits a number of complex phenomena that are classified into the realm of `beyond the rotating vector model' (RVM). It is shown that these effects can be understood in geometrical terms, as a result of coherent…

高能天体物理现象 · 物理学 2019-06-26 J. Dyks

We report here the discovery of a significant source of systematic error in the rotation measure determinations of pulsars. Conventional analysis of high sensitivity polarimetric observations of PSR B2016+28 display variation of the…

天体物理学 · 物理学 2009-11-10 R. Ramachandran , D. C. Backer , J. M. Rankin , J. M. Weisberg , K. E. Devine

We present a large sample of high-precision, coherently-dedispersed polarization profiles of millisecond pulsars (MSPs) at frequencies between 410 and 1414 MHz. These data include the first polarimetric observations of several of the…

天体物理学 · 物理学 2009-10-31 I. H. Stairs , S. E. Thorsett , F. Camilo

Pulsar polarization profiles are very basic database for understanding the emission processes in pulsar magnetosphere. After careful polarization calibration of the 19-beam L-band receiver and verification of beam-offset observation…

高能天体物理现象 · 物理学 2023-07-21 P. F. Wang , J. L. Han , J. Xu , C. Wang , Y. Yan , W. C. Jing , W. Q. Su , D. J. Zhou , T. Wang

A new Bayesian method for the analysis of folded pulsar timing data is presented that allows for the simultaneous evaluation of evolution in the pulse profile in either frequency or time, along with the timing model and additional…

天体物理仪器与方法 · 物理学 2015-01-09 L Lentati , P. Alexander , M. P. Hobson

We have studied the statistical and polarization properties of giant pulses (GPs) emitted by the millisecond pulsar B1937+21, with high sensitivity and time resolution. The observations were made in June 2005 with the 100-m Robert C. Byrd…

高能天体物理现象 · 物理学 2015-06-12 V. I. Zhuravlev , M. V. Popov , V. A. Soglasnov , V. I. Kondrat'ev , Y. Y. Kovalev , N. Bartel , F. Ghigo

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