Results 101 to 110 of about 3,416 (224)

The XMAGNET Exascale MHD Simulations of SMBH Feedback in Galaxy Groups and Clusters: Overview and Preliminary Cluster Results

The Astrophysical Journal
We present initial results from extremely well-resolved 3D magnetohydrodynamical simulations of idealized galaxy clusters, conducted using the AthenaPK code on the Frontier exascale supercomputer.
Philipp Grete, Brian W. O’Shea, Forrest W. Glines, Deovrat Prasad, Benjamin D. Wibking, Martin Fournier, Marcus Brüggen, G. Mark Voit   +7 more
doaj   +1 more source

Effectiveness of Virtual Reality for Pain Relief in Procedures Related to Obstetrics and Gynaecology: A Systematic Review and Meta‐Analysis of Randomised Controlled Trials

BJOG: An International Journal of Obstetrics &Gynaecology, Volume 133, Issue 7, Page 1358-1372, June 2026.
ABSTRACT Background Immersive virtual reality (VR) technology offers a non‐invasive, non‐pharmacological approach to reduce pain perception in patients undergoing diagnostic or interventional procedures. Objective To systematically evaluate the efficacy of immersive VR technology in reducing pain perception during obstetric and gynaecological ...
Jhia Jiat Teh, Filipa Campos, Adam Koczoski, Trisha Valencia, Michael P. Rimmer, Bassel H. Al Wattar   +5 more
wiley   +1 more source

MAGNETIC FIELDS IN THE GALAXY

, 2008
The object of this dissertation is to provide an observational study of the effects of interstellar magnetic fields on star-formation regions. This is part of a long-standing research project that uses the techniques of radio astronomy to measure ...
Mayo, Elizabeth Ann
core  

A kiloparsec-scale ordered magnetic field in a galaxy at z = 5.6

Magnetic fields are widely observed in various astronomical contexts, yet much remains unknown about their significance across different systems and cosmic epochs.
Geach, James E., Lopez-Rodriguez, E., Lopez-Rodriguez, Enrique, Ivison, R. J., James E. Geach, Xiaohui Liu, Liu, X., Geach, J., Bendo, George, Liu, Xiaohui, Bendo, G., Dye, Simon, Chen, J., Jianhang Chen, Ivison, R., Chen, Jianhang, Enrique Lopez-Rodriguez, George Bendo, Bendo, George; id_orcid, R. J. Ivison, Dye, S., Simon Dye   +21 more
core   +1 more source

LEO‐DOS Absorbed Dose Observations During the May 2024 Geomagnetic Superstorm

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Low‐Earth Orbit Space Radiation Dosimeter (LEO‐DOS) onboard Next‐Generation Satellite II (NEXTSat‐2) measured absorbed dose rate variations during the May 2024 geomagnetic superstorm. The observations show deep storm‐time penetration of solar energetic particle (SEP) spanning L ≈ 2–10, a pronounced enhancement near L ≈ 3 consistent with ...
Jongil Jung, Young‐Sil Kwak, Uk‐Won Nam, Suyeon Oh, Won‐Kee Park, Sukwon Youn, Jaeyoung Kwak, Jongdae Sohn, Bongkon Moon, Jaejin Lee, Sunghwan Kim, Sung‐Joon Ye   +11 more
wiley   +1 more source

Revealing the Magnetization of the Intracluster Medium of A3581 Using Background Faraday Rotation Measures from the POSSUM Survey

The Astrophysical Journal
The line-of-sight magnetic field of galaxy clusters can be probed using Faraday rotation measure (RM) data. However, our understanding of cluster magnetism is limited due to the scarcity of polarized background radio sources, with most previous studies ...
Affan Khadir, Erik Osinga, Wonki Lee, David McConnell, B. M. Gaensler, Chiara Stuardi, Craig Anderson, Ettore Carretti, Takuya Akahori, Shane P. O’Sullivan, Lerato Baidoo, Jennifer West, Cameron Van Eck, Lawrence Rudnick, Naomi McClure-Griffiths, Yik Ki Ma, David Alonso-López, Paris Gordon-Hall   +17 more
doaj   +1 more source

Evolution of Magnetic Field of the Quasar 1604+159 at parsec Scale

The Astrophysical Journal
We have analyzed the total intensity, spectral index, linear polarization, and rotation measure (RM) distributions at the parsec scale for the quasar 1604+159.
Xu-Zhi Hu, Xiaoyu Hong, Wei Zhao, Liang Chen, Wei-Yang Wang, Linhui Wu   +5 more
doaj   +1 more source

Magnetic Fields in Clusters of Galaxies [PDF]

, 2003
The existence of magnetic fields associated with the intracluster medium in clusters of galaxies is now well established through different methods of analysis. Magnetic fields are investigated in the radio band from studies of the rotation measure of polarized radio galaxies and the synchrotron emission of cluster-wide diffuse sources. Other techniques
Federica Govoni, Luigina Feretti, Gabriele Giovannini, Daniele Dallacasa, Gregory B. Taylor   +4 more
openaire   +1 more source

Toward Cosmological Simulations of the Magnetized Intracluster Medium with Resolved Coulomb Collision Scale

The Astrophysical Journal
We present the first results of one extremely high-resolution, nonradiative magnetohydrodynamical cosmological zoom-in simulation of a massive cluster with a virial mass of  M _vir = 2.0 × 10 ^15 solar masses. We adopt a mass resolution of 4 × 10 ^5 M _⊙
Ulrich P. Steinwandel, Klaus Dolag, Ludwig M. Böss, Tirso Marin-Gilabert   +3 more
doaj   +1 more source

Tracing Magnetic Field in Super-Alfvénic Turbulence with Gradient Technique

The Astrophysical Journal
Super-Alfvénic turbulence is important for many astrophysical objects, particularly galaxy clusters. In this paper, we explore the accuracy of synchrotron intensity gradients and X-ray intensity gradients to map magnetic fields in super-Alfvénic ...
Ka Wai Ho, A. Lazarian
doaj   +1 more source