Speaker
Описание
Abstract
Retention-dependent bounds on electron heating do not by themselves establish whether a nuclear contribution can be identified in polarized radiation. We consider localized energy deposition in irradiated Kerr plasmas, focusing on the interplay between the ({}^{56}\mathrm{Fe}(\gamma,n){}^{55}\mathrm{Fe}) channel and a common Compton background. Previously established channel-resolved energy and retention constraints provide the physical input, while paired channel-on/channel-off transport calculations and conditional polarized images provide reference cases. We outline a time-dependent extension that connects prescribed deposition histories to electron relaxation and polarized radiative transfer along Kerr null rays. The proposed calculation includes synchrotron emission and absorption, Faraday rotation and conversion, and photon travel-time differences, with the background flow, density, and magnetic field held fixed. Multi-frequency Stokes light curves are proposed as diagnostics of the amplitude, duration, and temporal structure of the response. Controlled comparisons would test whether channel-dependent changes remain distinguishable when electron-distribution and propagation parameters are varied. The objective is to determine the conditions under which retention-limited energy deposition produces an identifiable time-dependent polarized contribution, and to delimit the attribution of such a contribution to a specific microscopic channel. This preliminary framework connects nuclear energy bookkeeping to conditional time-domain polarimetric diagnostics.
Links
\bibitem{Wu2026PBH} J.~Wu, D.~Stepanenko, P.~I.~Pronin, L.~Luo, C.~Li, and J.~Shi, \textquotedblleft Primordial black holes as seeds for high-redshift supermassive black holes in scalar-tensor theories,\textquotedblright\ \emph{Physical Review D} \textbf{114}, 023059 (2026). DOI: \doi{10.1103/xm6l-8n9z}.
\bibitem{Wu2026EMRI} J.~Wu, L.~Luo, J.~Yang, H.~Ma, and J.~Shi, \textquotedblleft Detector-weighted signatures of localized dissipative transitions in Kerr EMRIs,\textquotedblright\ \emph{Classical and Quantum Gravity} \textbf{43}, 175013 (2026). DOI: \doi{10.1088/1361-6382/ae9e7c}.
\bibitem{Wu2026Shadow} J.~Wu, H.~Ma, D.~Stepanenko, L.~Luo, and J.~Shi, \textquotedblleft Critical photon orbits and shadow deformations of Kerr black holes in a Hernquist-halo effective geometry,\textquotedblright\ \emph{The European Physical Journal Plus} \textbf{141}, 892 (2026). DOI: \doi{10.1140/epjp/s13360-026-08058-w}.
\bibitem{Wu2026Nonlinear} J.~Wu, P.~I.~Pronin, and J.~Shi, \textquotedblleft Nonlinear field dynamics and spacetime self-organization in Kerr geometry,\textquotedblright\ \emph{Theoretical and Mathematical Physics} \textbf{227}, 888--902 (2026). DOI: \doi{10.1134/S0040577926050119}.
\bibitem{Wu2026Knot} J.~Wu, D.~Stepanenko, L.~Luo, P.~I.~Pronin, and J.~Shi, \textquotedblleft Configuration-Space Quantization of Knot Invariants on Curved Manifolds,\textquotedblright\ \emph{Lobachevskii Journal of Mathematics} \textbf{47}, 2603--2610 (2026). DOI: \doi{10.1134/S1995080226618461}.