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Core and conal emission beams of radio pulsars have been identified observationally (Rankin 1983,1993; Lyne and Manchester 1988), In the inner gap model (Ruderman and Sutherland 1975, hereafter RS75), the gap continually breaks down…

Astrophysics · Physics 2009-09-25 G. J. Qiao , W. P. Lin

Qiao and his collaborators recently proposed an inverse Compton Scattering (ICS) model to explain radio emission of pulsars. In this paper, we investigate the polarization properties of pulsar emission in the model. First of all, using the…

Astrophysics · Physics 2009-10-31 R. X. Xu , J. F. Liu , J. L. Han , G. J. Qiao

Some characteristics of the inverse Compton scattering (ICS) model are reviewed. At least the following properties of radio pulsars can be reproduced in the model: core or central emission beam, one or two hollow emission cones, different…

Astrophysics · Physics 2016-01-27 G. J. Qiao , R. X. Xu , J. F. Liu , J. L. Han , B. Zhang

The shapes of pulse profiles, especially their variations with respect to observing frequencies, are very important to understand emission mechanisms of pulsars, while no previous attempt has been made in interpreting the complicated…

Astrophysics · Physics 2009-11-07 G. J. Qiao , J. F. Liu , B. Zhang , J. L. Han

The Main Aim of this paper is to explain the emergence of new components of pulsars at higher radio bands by implementing the Inverse Compton Scattering Mechanism. From pulsar radio observation, it is seen that a couple of pulsars reveal…

High Energy Astrophysical Phenomena · Physics 2026-01-19 Tridib Roy , Mayuresh Surnis , Mageshwaran Tamilan , Monalisa Halder , Siddhartha Biswas

Although pulsars can radiate electromagnetic wave from radio to gamma ray bands, we still have no a united model to understand the multi-band emission. In this paper the effort for a joint model is presented. The inverse Compton scattering…

Astrophysics · Physics 2007-05-23 G. J. Qiao , K. J. Lee , H. G. Wang , R. X. Xu

Most of the known literature on Inverse Compton Scattering (ICS) is based on earliest theoretical attempts and later approximations led by F.C.Jones and J.B.Blumenthal. We found an independent and more general analytical procedure which…

Astrophysics · Physics 2026-02-24 D. Fargion , R. V. Konoplich , A. Salis

The inverse Compton scattering (ICS) model can explain various pulse profile shapes and diversity of pulse profile evolution based on the mechanism that the radio emission is generated through inverse Compton scattering between secondary…

Astrophysics of Galaxies · Physics 2015-05-30 M. Lv , H. G. Wang , K. J. Lee , G. J. Qiao , R. X. Xu

Emission of high energy gamma rays via the non-linear inverse Compton scattering process (ICS) in interactions of ultra-intense laser pulses with thin solid foils is studied using particle-in-cell simulations. It is shown that the angular…

Plasma Physics · Physics 2020-05-19 Jiří Vyskočil , Evgeny Gelfer , Ondřej Klimo

The emission geometries, e.g. the emission region height, the beam shape, and radius-to-frequency mapping, are important predictions of pulsar radiation model. The multi-band radio observations carry such valuable information. In this…

High Energy Astrophysical Phenomena · Physics 2017-05-31 L. H. Shang , J. G. Lu , Y. J. Du , L. F. Hao , D. Li , K. J. Lee , Bin Li , L. X. Li , G. J. Qiao , Z. Q. Shen , D. H. Wang , M. Wang , X. J. Wu , Y. J. Wu , R. X. Xu , Y. L. Yue , Z. Yan , Q. J. Zhi , R. B. Zhao , R. S. Zhao

The pulse profile of pulsar gives geometric information about pulsar's radiation model. After investigating the pulse profiles of PSR B1642-03 and PSR B0950+08, we calculate the ratios of beam width and the emission height between different…

Astrophysics · Physics 2007-05-23 X. H. Cui , K. J. Lee , G. J. Qiao , Y. L. Yue , R. X. Xu , H. G. Wang

Radio pulsars exhibit several unexplained phenomena, in particular the average pulse profiles with the apparent core-cone structure and interesting frequency evolution. I show that they can be interpreted through essential geometric…

High Energy Astrophysical Phenomena · Physics 2023-04-26 J. Dyks

The magnetized induced Compton scattering off the particles of the ultrarelativistic electron-positron plasma of pulsar is considered. The main attention is paid to the transverse regime of the scattering, which holds in a moderately strong…

Astrophysics · Physics 2009-11-13 S. A. Petrova

Inverse Compton scattering (ICS) is a unique mechanism for producing fast pulses - picosecond and below - of bright X- to gamma-rays. These nominally narrow spectral bandwidth electromagnetic radiation pulses are efficiently produced in the…

We reproduce the broadband spectrum of Crab pulsar, from UV to very high energy gamma-rays - nearly ten decades in energy, within the framework of the cyclotron-self-Compton model. Emission is produced by two counter-streaming beams within…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Maxim Lyutikov

The extremely high brightness temperature of fast radio bursts (FRBs) requires that their emission mechanism must be "coherent", either through concerted particle emission by bunches or through an exponential growth of a plasma wave mode or…

High Energy Astrophysical Phenomena · Physics 2022-02-02 Bing Zhang

In this talk we briefly review the inverse Compton (IC) scattering of nuclear photons in the lobes of radio galaxies and quasars. We concentrate on the possibility to test this model with the Chandra observatory and to constrain the…

Astrophysics · Physics 2007-05-23 G. Brunetti , G. Setti

Lyne & Manchester (1988) identified a group of some 50 pulsars they called "partial cones" which they found difficult to classify and interpret. They were notable for their asymmetric average profiles and asymmetric polarization…

Astrophysics of Galaxies · Physics 2015-05-20 Dipanjan Mitra , Joanna. M. Rankin

Inverse Compton scattering (ICS) is an elemental radiation process that produces high-energy photons both in nature and in the laboratory. Non-linear ICS is a process in which multiple photons are converted to a single high-energy photon.…

Accelerator Physics · Physics 2018-11-16 Yoshitaka Taira , Takehito Hayakawa , Masahiro Katoh

Many models for the pulsar radio and $\gamma$-ray emissions have been developed. The tests for these models using observational data are very important. Tests for the pulsar radio emission models using frequency-altitude relation are…

Astrophysics · Physics 2008-11-26 G. J. Qiao , K. J. Lee , H. G. Wang , R. X. Xu , B. Zhang
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