Resonant cyclotron scattering

Author: scwg

August undefined, 2024

WebFeb 13, 2008 · In this scenario, non-thermal magnetar spectra in the soft X-rays (i.e. below ~10 keV) result from resonant cyclotron scattering of the thermal surface emission by hot magnetospheric plasma. We find that this model can successfully account for the soft X … WebJun 26, 2012 · Resonant cyclotron scattering of the surface radiation in the magnetospheres of neutron stars may considerably modify the emergent spectra and impede efforts to constrain neutron star properties.

Scattering of Radiation Belt Electrons by Fast Magnetosonic …

WebThis dominance of bounce resonance in scattering ≥ 1 MeV electrons is found to be more pronounced at higher L shells due to the stronger bounce resonant scattering rates. Furthermore, Figure 4 illustrates that cyclotron resonance driven pitch angle scattering of … WebApr 10, 2024 · Abstract Averaged equations and 3D particle-in-cell modeling are used to examine the frequency multiplication regime in a high-current relativistic gyrotron operating in the 0.1 THz band of frequencies. It is shown that the ratio of the 3rd harmonic power output and the fundamental cyclotron resonance power can be as high as 0.4–0.8%, … bwt life s wartung

Spectral modification of magnetar flares by resonant cyclotron …

WebJan 20, 2024 · We find that scattering by ion cyclotron waves is crucially important to relativistic electron losses in Saturn's radiation belt. 2 Methodology ... This is because the cyclotron-resonant energy of radiation belt electrons due to L-mode waves decreases … WebOct 21, 2008 · The scattering efficiency is quantified by the resonant optical depth, tau_{res}, which is related to the electron density (assumed to be constant through the scattering slab). The RCS model is based on a simplified, 1D semi-analytical treatment of resonant … WebCyclotron Resonant Scattering and Absorption. The relativistic cross-sections for first-order absorption and second-order scattering are compared to determine the conditions under which the absorption cross-section is a good approximation to the much more complex … cfg config.fromfile args.config 报错

Phys. Rev. Lett. 129, 135101 (2024) - Nonresonant Scattering of ...

WebAlthough the surface of a magnetar is a source of bright thermal X-rays, its spectrum contains substantial non-thermal components. The X-ray emission is pulsed, with pulsed fractions that can be as high as . Several pr… WebCyclotron resonant scattering features (short: cyclotron lines) are sensitive tracers of the physics of the accretion columns and mounds of X-ray pulsars. They form by interaction of X-ray photons with magnetically quantized electrons in the accreted plasma close to the neutron star. Such lines have been observed as absorption-like features for about 20 X-ray … bwtload : cannot open bwtcodefileWebWang, J. C. L., Lamb, D. Q., Loredo, T. J., Wasserman, I. M., Salpeter, E. E., Fenimore, E. E., … Kondo, I. (1989). Cyclotron resonant scattering in the spectra ... cfg conf 違い

"WebSep 23, 2024 · Electromagnetic ion cyclotron waves are expected to pitch-angle scatter and cause atmospheric precipitation of relativistic (> 1 MeV) electrons under typical conditions in Earth’s radiation belts.However, it has been a long-standing mystery how relativistic … " - Resonant cyclotron scattering

Resonant cyclotron scattering

WebMar 1, 2024 · This paper reviews the main microwave diagnostic techniques and tools adopted in electron cyclotron resonance (ECR) (and others) ion source laboratories, with a special focus on techniques and instruments developed at INFN-LNS. Along with the tools used for optimization of microwave launching (power … WebApr 20, 2024 · Spectral modification of energetic magnetar flares by resonant cyclotron scattering (RCS) is considered. During energetic flares, photons emitted from the magnetically-trapped fireball near the stellar surface should resonantly interact with …

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WebAug 14, 2006 · The charges supporting these currents supply a significant optical depth to resonant cyclotron scattering in the 1-100 keV band. Here we describe a Monte Carlo approach to calculating the redistribution of thermal seed photons in frequency and angle …

WebJun 1, 2024 · We present a detailed study of the high mass X-ray binary Vela X-1, using observations performed by Insight-HXMT in 2024 and 2024, concentrating on timing analysis and spectral studies including pulse phase-resolved spectroscopy. The cyclotron … WebApr 14, 2024 · Abstract Precipitation into the Earth's atmosphere due to pitch angle scattering by plasma waves has been recognized as one ... Whistler mode waves are right-hand polarized electromagnetic waves with frequencies below electron cyclotron frequency ... Resonant harmonic numbers from −10 to 10 and magnetic latitudes within 50° are ...

WebApr 12, 2024 · The two vertical dashed lines mark the second and third proton cyclotron harmonics ... A., & Ni, B. (2013). Gyro-resonant scattering of radiation belt electrons during the solar minimum by ... WebApr 5, 2006 · Resonant cyclotron scattering and Comptonization in neutron star magnetospheres 1 INTRODUCTION. The magnetospheres of neutron stars are filled with plasma, with the minimum magnetospheric plasma... 2 RESONANT SCATTER IN THE …

WebThis paper examines two wave-particle interactions which are likely to be important for producing pitch-angle scattering. These are cyclotron-resonance scattering by whistler-mode disturbances and bounce-resonance scattering by disturbances having electric- or …

WebA typical time resolution is Thomson scattering diagnostic finally succeeded in producing 35 µs and it is observed that the electron density is pumped the preliminary results by increasing ... Jeon Y.M. et al 2012 Phys. Rev. Lett. 109 035004 Cyclotron Emission and Electron Cyclotron Resonance [17] Park J .K., Boozer A.H. and Menard ... cfg community fastcup xprojectWebThe resonant cyclotron scattering (RCS) may well be a plausible process that can help to explain the observed spectra of energetic magnetar flares. Magnetars emit mostly in the X-ray band so that close to their surface, the cyclotron frequency well exceeds the radiation … cfg community bank ratingsWebDec 9, 2024 · Cyclotron lines, also called cyclotron resonant scattering features (CRSF) are spectral features, generally appearing in absorption, in the X-ray spectra of objects containing highly magnetized neutron stars, allowing the direct measurement of the … cfg common stockWebCyclotron Resonance Scattering Features (hereafter called CRSFs or simply “cyclotron lines”), ﬁrst discovered in the s pec-trumofHer X-1 (Tru¨mper et al., 1977; Tru¨mper et al., 1978), are observed as absorption lines in the spectra of highly magnetized accreting X … cfg community bank stockWebApr 12, 2024 · Cyclotron resonance can result in the absorption of R-mode photons at a low altitude region of the magnetosphere, and an FRB should then be emitted from a high-altitude region if the waves have ... cfg community bank savings ratesWebCyclotron resonant scattering features (short: cyclotron lines) are sensitive tracers of the physics of the accretion columns and mounds of X-ray pulsars. They form by interaction of X-ray photons with magnetically quantized electrons in the accreted plasma close to the … bwt locationsWebWe present a systematic fit of a model of resonant cyclotron scattering (RCS) to the X-ray data of 10 magnetars, including canonical and transient anomalous X-ray pulsars (AXPs) and soft gamma repeaters (SGRs). In this scenario, nonthermal magnetar spectra in the soft X-rays (i.e., below ~10 keV) result from resonant cyclotron scattering of the thermal … bwt loclean reinigungstabletten