Results 1 to 10 of about 2,325,670 (296)

Evolution of vorticity and enstrophy in the intracluster medium [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
Turbulence generated by large-scale motions during structure formation affects the evolution of the thermal and non-thermal components of the intracluster medium. As enstrophy is a measure of the magnitude of vorticity, we study the generation and evolution of turbulence by analysing the Lagrangian history of enstrophy.
Brüggen, Marcus, Jones, Tom, Vazza, Franco, Wittor, Denis   +3 more
arxiv   +9 more sources

A Multiphase Model for the Intracluster Medium [PDF]

Monthly Notices of the Royal Astronomical Society, 1999
Constraints on the clustered mass density \Omega_m of the universe derived from the mean intracluster gas fraction of X-ray clusters may be biased by a single-phase assumption for the thermodynamic structure of the intracluster medium (ICM). We propose a
A. E. Evrard, Birkinshaw M., Cavaliere A., Cen R., Cole S., D. Nagai, David L. P., Eke V. R., Fabian A. C., Frenk C. S., Gunn K. F., Hamuy M., Inagaki Y., Irwin J. A., Irwin J. A., Jones M., M. E. Sulkanen, Mohr J. J., Navarro J. F., Neumann D. M., Nulsen P. E. J., Peres C. B., Raymond J. C., Riess A. G., Thomas P., Thomas P. A., White D. A., White S. D. M., Zaroubi S.   +28 more
core   +9 more sources

Plasma physics of the intracluster medium [PDF]

, 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
M. Kunz, T. Jones, I. Zhuravleva
arxiv   +4 more sources

The Enrichment of the Intracluster Medium [PDF]

arXiv, 1996
The enrichment of the intracluster medium (ICM) of galaxy clusters, within the framework of the supernovae-driven wind model for elliptical galaxies, has been considered under two extreme assumptions regarding the binding energy-mass-radius relations. Unless the binding energy at the time of wind commencement, for a given galactic mass, was a factor of
B. K. Gibson, F. Matteuccí
arxiv   +8 more sources

Ram pressure stripping in a viscous intracluster medium [PDF]

, 2008
In the recent literature there is circumstantial evidence that the viscosity of the intracluster medium may not be too far from the Spitzer value. In this letter, we present two-dimensional hydrodynamical simulations of ram pressure stripping of disc galaxies in a viscous intracluster medium.
Abadi, Betchov, Braginskii, Cho, Clarke, Elke Roediger, Enlin, Fabian, Fabian, Fryxell, Gunn, Marcolini, Marcus Brggen, Narayan, Nulsen, Oosterloo, Quilis, Quilis, Reynolds, Roediger, Roediger, Roediger, Roediger, Roediger, Ruszkowski, Ruszkowski, Schuecker, Schulz, Spitzer, Sun, Sun, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Yagi   +39 more
arxiv   +5 more sources

A Heating Mechanism via Magnetic Pumping in the Intracluster Medium [PDF]

The 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, Ellen G. Zweibel, Mario Riquelme, Lorenzo Sironi, Drake Miller, Aaron Tran   +5 more
doaj   +2 more sources

Simulating the transport of relativistic electrons and magnetic fields injected by radio galaxies in the intracluster medium [PDF]

Astronomy & Astrophysics, 2021
Radio galaxies play an important role in the seeding of cosmic rays and magnetic fields in galaxy clusters. Here, we simulate the evolution of relativistic electrons injected into the intracluster medium by radio galaxies. Using passive tracer particles added to magnetohydrodynamical adaptive-mesh simulations, we calculate the evolution of the spectrum
F. Vazza, D. Wittor, G. Brunetti, M. Bruggen   +3 more
arxiv   +3 more sources

Calcium-rich Gap Transients: Solving the Calcium Conundrum in the Intracluster Medium [PDF]

, 2014
X-ray measurements suggest the abundance of Calcium in the intracluster medium is higher than can be explained using favored models for core-collapse and Type Ia supernovae alone. We investigate whether the Calcium conundrum in the intracluster medium can be alleviated by including a contribution from the recently discovered subclass of supernovae ...
Kasliwal, Mansi M., Kollmeier, Juna A., Mulchaey, John S.   +2 more
arxiv   +5 more sources

Chemical and Thermal History of the Intracluster Medium [PDF]

arXiv, 2004
Clusters of galaxies can be seen as giant astrophysical laboratories enclosing matter in a large enough volume, so that the matter composition can be taken as representing the composition of our Universe. X-ray observations allow a very precise investigation of the physical properties of the intracluster plasma allowing us to probe probe the cluster ...
Boehringer, Hans
arxiv   +3 more sources

Seroprevalence of and Associated Risk Factors for Bovine Viral Diarrhea in Dairy Cattle in and Around Nekemte Town, East Wallaga, Oromiya Regional State, Ethiopia. [PDF]

Biomed Res Int
Bovine viral diarrhea virus (BVDV) is an important pathogen affecting dairy cattle all over the world by causing significant economic losses due to reproductive and respiratory problems, immunosuppressive effects, increased risk of morbidity, and calf mortality.
Bulcha B, Tesfaye A, Garoma A, Begna F.
europepmc   +2 more sources