Zobrazeno 1 - 10
of 439
pro vyhledávání: '"Shukla, Amit"'
Relativistic jets from accreting supermassive black holes at cosmological distances can be powerful emitters of $\gamma$-rays. However, the precise mechanisms and locations responsible for the dissipation of energy within these jets, leading to obser
Externí odkaz:
http://arxiv.org/abs/2405.09612
Autor:
Samdani, Shilpa, Rong, Yaqi, Coester, Birte, Shukla, Amit Kumar, Siang, Lew Wen, Yang, Yumeng, Rawat, Rajdeep Singh
FM1/NM/FM2 trilayers have garnered considerable attention because of their potential in spintronic applications. A thorough investigation of the spin transport properties of these trilayers is therefore important. Asymmetric trilayers, particularly t
Externí odkaz:
http://arxiv.org/abs/2404.12307
Autor:
Islam, A N M Nafiul, Yang, Kezhou, Shukla, Amit K., Khanal, Pravin, Zhou, Bowei, Wang, Wei-Gang, Sengupta, Abhronil
Despite the promise of superior efficiency and scalability, real-world deployment of emerging nanoelectronic platforms for brain-inspired computing have been limited thus far, primarily because of inter-device variations and intrinsic non-idealities.
Externí odkaz:
http://arxiv.org/abs/2305.03235
Publikováno v:
A&A 671, A161 (2023)
Blazars, a class of active galaxies whose jets are relativistic and collimated flows of plasma directed along the line of sight and are prone to a slew of magneto-hydrodynamic (MHD) instabilities. We aim to study the interplay of radiation and partic
Externí odkaz:
http://arxiv.org/abs/2211.17270
Autor:
Ezhikode, Savithri H., Shukla, Amit, Dewangan, Gulab C., Pawar, Pramod K., Agarwal, Sushmita, Mathew, Blesson, R, Akhil Krishna
The $\gamma-$ray emission from flat-spectrum radio quasars (FSRQs) is thought to be dominated by the inverse Compton scattering of the external sources of photon fields, e.g., accretion disk, broad-line region (BLR), and torus. FSRQs show strong opti
Externí odkaz:
http://arxiv.org/abs/2209.13574
Autor:
Mei, Alessio, Banerjee, Biswajit, Oganesyan, Gor, Salafia, Om Sharan, Giarratana, Stefano, Branchesi, Marica, D'Avanzo, Paolo, Campana, Sergio, Ghirlanda, Giancarlo, Ronchini, Samuele, Shukla, Amit, Tiwari, Pawan
An energetic $\rm \gamma$-ray burst (GRB), GRB 211211A, was observed on 2021 December 11 by the Neil Gehrels Swift Observatory. Despite its long duration, typically associated with bursts produced by the collapse of massive stars, the discovery of an
Externí odkaz:
http://arxiv.org/abs/2205.08566
Publikováno v:
In Heliyon 15 June 2024 10(11)
Beams of ultra-relativistic electrons in blazar jets develop pair cascades interacting with ambient soft photons. Employing coupled kinetic equations with escape terms, we model the unsaturated pair cascade spectrum. We assume that the gamma rays pre
Externí odkaz:
http://arxiv.org/abs/2108.02649
The blazar 3C 279 emits a flux of gamma-rays that is variable on timescales as short as the light-crossing time across the event horizon of its central black hole. It is commonly reported that the spectral energy distribution (SED) does not show sign
Externí odkaz:
http://arxiv.org/abs/2108.01028
Publikováno v:
In Reliability Engineering and System Safety April 2024 244