Zobrazeno 1 - 10
of 9 194
pro vyhledávání: '"COMPTONIZATION"'
Positive spectral lags are commonly observed in gamma-ray burst (GRB) prompt phase where soft photons lag behind hard ones in their spectral studies. Opposite to this pattern, a fraction of GRBs show a negative spectral lag where hard photons arrive
Externí odkaz:
http://arxiv.org/abs/2410.04446
Autor:
Alabarta, Kevin, Méndez, Mariano, García, Federico, Altamirano, Diego, Zhang, Yuexin, Zhang, Liang, Russell, David M., König, Ole
We use the rms and lag spectra of the type-C quasi-periodic oscillation (QPO) to study the properties of the Comptonisation region (aka corona) during the low/hard and hard-intermediate states of the main outburst and reflare of MAXI J1348$-$630. We
Externí odkaz:
http://arxiv.org/abs/2409.14883
Publikováno v:
Phys. Rev. D 110, 043021 (2024)
Within the disk-corona model, it is natural to expect that a fraction of reflection photons from the disk are Compton scattered by the hot corona (reflection Comptonization), even if this effect is usually ignored in X-ray reflection spectroscopy stu
Externí odkaz:
http://arxiv.org/abs/2404.06893
Autor:
Kuznetsov, Sergey, Titarchuk, Lev
The multi-wavelength outburst activity in the BL Lacertae source OJ 287 has sparked a lot of controversy about whether the source contains one or two black holes (BHs) and what characteristics of this black hole binary would be. In this article we pr
Externí odkaz:
http://arxiv.org/abs/2403.17267
Akademický článek
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Akademický článek
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We perform two-dimensional particle-in-cell simulations of magnetic reconnection for various strengths of the guide field (perpendicular to the reversing field), in magnetically-dominated electron-positron plasmas. Magnetic reconnection under such co
Externí odkaz:
http://arxiv.org/abs/2310.04233
Autor:
Kumar, Nagendra
High energies emissions observed in X-ray binaries (XRBs), active galactic nuclei (AGNs) are linearly polarized. The prominent mechanism for X-ray is the Comptonization process. We revisit the theory for polarization in Compton scattering with unpola
Externí odkaz:
http://arxiv.org/abs/2307.08023
The transient Galactic black hole candidate MAXI J0637-430 went through an outburst in 2019--20 for the very first time. This outburst was active for almost 6 months from November 2019 to May 2020. We study the spectral properties of this source duri
Externí odkaz:
http://arxiv.org/abs/2309.04343
Autor:
Groselj, Daniel, Hakobyan, Hayk, Beloborodov, Andrei M., Sironi, Lorenzo, Philippov, Alexander
Publikováno v:
Phys. Rev. Lett. 132, 085202 (2024)
We report results from the first radiative particle-in-cell simulations of strong Alfvenic turbulence in plasmas of moderate optical depth. The simulations are performed in a local 3D periodic box and self-consistently follow the evolution of radiati
Externí odkaz:
http://arxiv.org/abs/2301.11327