Results 41 to 50 of about 2,679,570 (255)

Electron Preacceleration in Weak Quasi-perpendicular Shocks in High-beta Intracluster Medium [PDF]

Astrophysical Journal, 2019
Giant radio relics in the outskirts of galaxy clusters are known to be lit up by the relativistic electrons produced via diffusive shock acceleration (DSA) in shocks with low sonic Mach numbers, Ms ≲ 3.
Hyesung Kang, D. Ryu, J. Ha
semanticscholar   +1 more source

Dynamical evolution of magnetic fields in the intracluster medium [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We investigate the evolution of magnetic fields in galaxy clusters starting from constant primordial fields using highly resolved ($\approx \rm 4 ~kpc$) cosmological MHD simulations.
P. Dom'inguez-Fern'andez, F. Vazza, M. Bruggen, G. Brunetti   +3 more
semanticscholar   +1 more source

Observations of magnetic fields in intracluster medium [PDF]

, 2015
The presence of μG-level magnetic fields associated with the intracluster medium of galaxy clusters is now widely acknowledged. Our knowledge of their properties has greatly improved in the recent years thanks to both new radio observations and the ...
GOVONI, FEDERICA
core   +1 more source

Mapping the intracluster medium temperature in the era of NIKA2 and MUSTANG-2 [PDF]

EPJ Web of Conferences, 2022
We present preliminary results from an on-going program that aims at mapping the intracluster medium (ICM) temperature of high redshift galaxy clusters from the MaDCoWS sample using a joint analysis of shallow X-ray data obtained by Chandra and high ...
Ruppin F., Adam R., Ade P., Ajeddig H., André P., Artis E., Aussel H., Beelen A., Benoît A., Berta S., Bing L., Bourrion O., Brodwin M., Calvo M., Catalano A., Decker B., De Petris M., Désert F.-X., Doyle S., Driessen E. F. C., Eisenhardt P. R. M., Gomez A., Gonzalez A. H., Goupy J., Kéruzoré F., Kramer C., Ladjelate B., Lagache G., Leclercq S., Lestrade J.-F., Macías-Pérez J.-F., Maury A., Mauskopf P., Mayet F., McDonald M., Monfardini A., Moravec E., Muñoz-Echeverría M., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A. J., Ritacco A., Romero C., Roussel H., Schuster K., Shu S., Sievers A., Stanford S.A., Stern D., Tucker C., Zylka R.   +52 more
doaj   +1 more source

Turbulent pressure support and hydrostatic mass bias in the intracluster medium [PDF]

Monthly notices of the Royal Astronomical Society, 2019
The degree of turbulent pressure support by residual gas motions in galaxy clusters is not well known. Mass modelling of combined X-ray and Sunyaev–Zel’dovich observations provides an estimate of turbulent pressure support in the outer regions of ...
M. Angelinelli, F. Vazza, C. Giocoli, S. Ettori, T. W. Jones, G. Brunetti, M. Brüggen, D. Eckert   +7 more
semanticscholar   +1 more source

The X-Ray Intracluster Medium [PDF]

Symposium - International Astronomical Union, 1996
Clusters of galaxies are the largest aggregates of matter that have decoupled from the universal expansion and have approximately evolved to a proper dynamical equilibrium configuration. While in the optical they are just observed as dense concentrations of galaxies, they are seen in X-rays as continuously connected entities through the emission of the
openaire   +1 more source

XMM Observations of Abundances in the Intracluster Medium [PDF]

Symposium - International Astronomical Union, 2004
Based on XMM-Newton observations of M 87 and the Centaurus cluster, abundance profiles of various elements of the intracluster medium (ICM) are derived. The abundances of Si and Fe show strong decreasing gradients. In contrast, the O and Mg abundances are about half of the Si abundance at the center.From the gas mass to stellar mass ratio and the ...
Matsushita, K., Ikebe, Y., Finoguenov, A., Böhringer, H.   +3 more
openaire   +2 more sources

Measuring bulk flows of the intracluster medium in the Perseus and Coma galaxy clusters using XMM-Newton [PDF]

Astronomy & Astrophysics, 2019
We demonstrate a novel technique for calibrating the energy scale of the EPIC-pn detector on XMM-Newton, which allows us to measure bulk flows in the intracluster medium (ICM) of the Perseus and Coma galaxy clusters.
J. Sanders, K. Dennerl, H. Russell, D. Eckert, C. Pinto, A. Fabian, S. Walker, T. Tamura, J. Zuhone, F. Hofmann   +9 more
semanticscholar   +1 more source

Intracluster Stars and the Chemical Enrichment of the Intracluster Medium

The Astrophysical Journal, 2004
5 pages, accepted for publication by ApJ Letters. Changed title to follow ApJL convention, added references, and incorporated referee's comments.
Zaritsky, Dennis, Gonzalez, Anthony H., Zabludoff, Ann I.   +2 more
openaire   +2 more sources

AN ATTRACTOR FOR THE DYNAMICAL STATE OF THE INTRACLUSTER MEDIUM [PDF]

The Astrophysical Journal, 2012
Galaxy clusters provide us with important information about the cosmology of our universe. Observations of the X-ray radiation or of the SZ effect allow us to measure the density and temperature of the hot intergalactic medium between the galaxies in a cluster, which then allow us to calculate the total mass of the galaxy cluster.
Juncher, Diana, Hansen, Steen Harle, Macciò, Andrea V.   +2 more
openaire   +3 more sources