Results 21 to 30 of about 686,828 (173)
Structured, relativistic jets driven by radiation [PDF]
, 2020 Relativistic jets, or highly collimated and fast-moving outflows, are endemic to many astrophysical phenomena. The jets produced by gamma-ray bursts and tidal disruption events are accompanied by the accretion of material onto a black hole or neutron ...
E. Coughlin, M. Begelman
semanticscholar +1 more source
How Professionals Adapt to Artificial Intelligence: The Role of Intertwined Boundary Work
Journal of Management Studies, EarlyView., 2023 Abstract The rise of artificial intelligence (AI) has generated extensive debates about the future of work in the professions. However, few studies take account of the potential for AI's disruptive effects to trigger robust defence by professionals of their interests and resources.
James Faulconbridge +2 more
wiley +1 more source
Noûs, Volume 56, Issue 4, Page 972-999, December 2022., 2022 Abstract The background of this paper (section 1) consists in a new account to foundation‐theoretic epistemology characterized by two features: (i) All beliefs are to be justified by deductive, inductive or abductive inferences from a minimalistic class of unproblematic (introspective or analytic) basic beliefs.
Gerhard Schurz
wiley +1 more source
Biological Explanations of Social Inequalities
Pacific Philosophical Quarterly, Volume 103, Issue 4, Page 694-719, December 2022., 2022 Abstract Inequalities of social goods between gender, racial, or other groups call out for explanation. Such inequalities might be explained by socialization and discrimination. But historically some have attributed these inequalities to biological differences between social groups. Such explanations are highly controversial: on the one hand, they have
Dan Lowe
wiley +1 more source
Relativistic Jets from Active Galactic Nuclei [PDF]
Annual Review of Astronomy and Astrophysics, 2018 The nuclei of most normal galaxies contain supermassive black holes, which can accrete gas through a disk and become active. These active galactic nuclei (AGNs) can form jets that are observed on scales from astronomical units to megaparsecs and from ...
R. Blandford, D. Meier, A. Readhead
semanticscholar +1 more source
Relativistic X-Ray Jets from the Black Hole X-Ray Binary MAXI J1820+070 [PDF]
Astrophysical Journal, 2020 The black hole MAXI J1820+070 was discovered during its 2018 outburst and was extensively monitored across the electromagnetic spectrum. Following the detection of relativistic radio jets, we obtained four Chandra X-ray observations taken between 2018 ...
M. Espinasse +16 more
semanticscholar +1 more source
GRMHD Simulations and Modeling for Jet Formation and Acceleration Region in AGNs [PDF]
, 2022 Relativistic jets are collimated plasma outflows with relativistic speeds. Astrophysical objects involving relativistic jets are a system comprising a compact object such as a black hole, surrounded by rotating accretion flows, with the relativistic jets produced near the central compact object.
arxiv +1 more source
Exact solution of one dimensional relativistic jet with relativistic equation of state [PDF]
, 2021 We study the evolution of one-dimensional relativistic jets, using the exact solution of the Riemann problem for relativistic flows. For this purpose, we solve equations for the ideal special relativistic fluid composed of dissimilar particles in flat space-time and the thermodynamics of fluid is governed by a relativistic equation of state.
arxiv +1 more source
Relativistic Jets in Gamma-Ray-Emitting Narrow-Line Seyfert 1 Galaxies [PDF]
Galaxies, 2019 Before the launch of the Fermi Gamma-ray Space Telescope satellite only two classes of active galactic nuclei (AGN) were known to generate relativistic jets and thus to emit up to the γ -ray energy range: blazars and radio galaxies, both hosted in giant ...
F. D’Ammando
semanticscholar +1 more source
Using evolutionary algorithms to model relativistic jets [PDF]
Astronomy & Astrophysics, 2019 Context. High-resolution very long baseline interferometry (VLBI) observations of NGC 1052 show a two sided jet with several regions of enhanced emission and a clear emission gap between the two jets.
C. Fromm +11 more
semanticscholar +1 more source