Results 51 to 60 of about 882,791 (313)

Beyond the Impulsive Approximation: The Dynamics and Radio Emission of Tidal Disruption Jets

open access: yesThe Astrophysical Journal Letters
Radio emission from relativistic tidal disruption events (TDEs) is commonly interpreted using the Blandford–McKee solution for an impulsive relativistic blast wave.
Fabio De Colle, Enrico Ramirez-Ruiz
doaj   +1 more source

Radio Loud AGN Unification: Connecting Jets and Accretion

open access: yesEPJ Web of Conferences, 2013
While only a fraction of Active Galactic Nuclei are observed to host a powerful relativistic jet, a cohesive picture is emerging that radio-loud AGN may represent an important phase in the evolution of galaxies and the growth of the central super-massive
Meyer Eileen T.   +3 more
doaj   +1 more source

A Unified Theory of Jetted Tidal Disruption Events: From Promptly Escaping Relativistic to Delayed Transrelativistic Jets

open access: yesThe Astrophysical Journal Letters, 2023
Only a tiny fraction ∼1% of stellar tidal disruption events (TDEs) generate powerful relativistic jets evidenced by luminous hard X-ray and radio emissions.
Odelia Teboul, Brian D. Metzger
doaj   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

Active Galactic Nucleus Jet-inflated Bubbles as Possible Origin of Odd Radio Circles

open access: yesThe Astrophysical Journal
Odd radio circles (ORCs) are newly discovered extragalactic radio objects with an unknown origin. In this work, we carry out three-dimensional cosmic-ray (CR) magnetohydrodynamic simulations using the FLASH code and predict the radio morphology of end-on
Yen-Hsing Lin, H.-Y. Karen Yang
doaj   +1 more source

Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44

open access: yesUniverse
I identify a point-symmetrical morphology in the core-collapse supernova remnant (CCSNR) W44 compatible with shaping by three or more pairs of jets in the jittering jets explosion mechanism (JJEM). Motivated by recent identifications of point-symmetrical
Noam Soker
doaj   +1 more source

Engineered Nanotopography to Modulate Growth and Signaling of Neuronal Networks

open access: yesAdvanced Functional Materials, EarlyView.
This study examines the interaction between neurons and nanoscale topographies on engineered substrates. Neurons cultured on nanowires, nanopillars and nanoneedles exhibit enhanced neurite outgrowth, form more organized neuronal circuits, and display improved synaptic connectivity, compared to flat substrates.
Hao Nguyen Tran   +8 more
wiley   +1 more source

Low-velocity Precessing Jets Can Explain Observed Morphologies in the Twin Radio Galaxy TRG J104454+354055

open access: yesThe Astrophysical Journal
Our understanding of large-scale radio jets in merger systems has been drastically improved in the era of the Very Large Array, Very Long Baseline Array/European VLBI Network, upgraded Giant Metrewave Radio Telescope, and MeerKAT.
Santanu Mondal   +5 more
doaj   +1 more source

Hunting Gamma-Ray-emitting FR0 Radio Galaxies in Wide-field Sky Surveys

open access: yesThe Astrophysical Journal, 2023
The latest entry in the jetted active galactic nuclei (AGN) family is the Fanaroff–Riley type 0 (FR0) radio galaxies. They share several observational characteristics, e.g., nuclear emission and host galaxy morphology, with FR I sources; however, they ...
Meghana Pannikkote   +2 more
doaj   +1 more source

The radio jet velocities at high resolution [PDF]

open access: yesNew Astronomy Reviews, 2003
6 pages, 2 figures, to appear in "The Physics of Relativistic Jets in the Chandra and XMM Era", eds G. Brunetti, D.E. Harris, R.M. Sambruna, G.
openaire   +2 more sources

Home - About - Disclaimer - Privacy