Results 1 to 10 of about 2,032 (182)

EDA Complex-Driven Desaturation of Heterocyclic Carbonyl Compounds Enabled by HFIP. [PDF]

open access: yesAngew Chem Int Ed Engl
In this work, we report a novel light‐mediated desaturation strategy enabled by electron donor–acceptor complex formation. DFT and mechanistic studies reveal that the reaction proceeds via single‐electron transfer, hydrogen atom transfer, and base‐mediated deprotonation sequentially with pyridinium salt serving dually as oxidant and base, and ...
Maiti R   +6 more
europepmc   +3 more sources

Inferences from Surface Brightness Fluctuations of Zwicky 3146 via the Sunyaev–Zel’dovich Effect and X-Ray Observations

open access: yesThe Astrophysical Journal, 2023
The galaxy cluster Zwicky 3146 is a sloshing cool-core cluster at z = 0.291 that in Sunyaev–Zel’dovich (SZ) imaging does not appear to exhibit significant pressure substructure in the intracluster medium.
Charles E. Romero   +18 more
doaj   +1 more source

CHANDRA X-Ray Observations of A119: Cold Fronts and a Shock in an Evolved Off-axis Merger

open access: yesThe Astrophysical Journal, 2023
We present Chandra X-ray observations of the dynamically complex galaxy cluster A119 ( z = 0.044). A119 is host to two narrow-angle-tail (NAT) radio sources (0053-015 and 0053-016), whose tails are oriented parallel to each other, despite orthogonally ...
Courtney B. Watson   +6 more
doaj   +1 more source

INTRACLUSTER MEDIUM REHEATING BY RELATIVISTIC JETS [PDF]

open access: yesThe Astrophysical Journal, 2011
Accepted for publication in ...
Perucho, Manel   +2 more
openaire   +2 more sources

A Heating Mechanism via Magnetic Pumping in the Intracluster Medium

open access: yesThe Astrophysical Journal, 2023
Turbulence driven by active galactic nuclei activity, cluster mergers, and galaxy motion constitutes an attractive energy source for heating the intracluster medium (ICM).
Francisco Ley   +5 more
doaj   +1 more source

THE ENRICHMENT OF THE INTRACLUSTER MEDIUM [PDF]

open access: yesThe Astrophysical Journal, 2009
To determine the relative contributions of galactic and intracluster stars to the enrichment of the intracluster medium (ICM), we present X-ray surface brightness, temperature, and Fe abundance profiles for a set of twelve galaxy clusters for which we have extensive optical photometry.
Sivanandam, Suresh   +4 more
openaire   +2 more sources

Mirror Acceleration of Cosmic Rays in a High-β Medium

open access: yesThe Astrophysical Journal, 2023
In a weakly compressible high- β medium, pitch-angle scattering and the associated scattering acceleration of cosmic rays (CRs) by anisotropic Alfvén and slow modes of magnetohydrodynamic (MHD) turbulence is inefficient.
Alex Lazarian, Siyao Xu
doaj   +1 more source

Plasma Physics of the Intracluster Medium

open access: yes, 2022
This Chapter provides a brief tutorial on some aspects of plasma physics that are fundamental to understanding the dynamics and energetics of the intracluster medium (ICM). The tutorial is split into two parts: one that focuses on the thermal plasma component -- its stability, viscosity, conductivity, and ability to amplify magnetic fields to dynamical
Kunz, Matthew W.   +2 more
openaire   +2 more sources

Diffuse radio emission from the intracluster medium [PDF]

open access: yesNew Astronomy Reviews, 2004
8 pages, 6 figures, to appear in: "Science with the Square Kilometer Array", eds. C. Carilli & S. Rawlings, New Astronomy Reviews, (Elsevier, Amsterdam)
Ferretti, L., Burigana, C., Enßlin, T.
openaire   +3 more sources

Nonthermal support for the outer intracluster medium [PDF]

open access: yesAstronomy & Astrophysics, 2010
We submit that non thermalized support for the outer intracluster medium in relaxed galaxy clusters is provided by turbulence, driven by inflows of intergalactic gas across the virial accretion shocks. We expect this component to increase briskly during the cluster development for z<1/2, due to three factors.
Cavaliere, A.   +2 more
openaire   +3 more sources

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