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Galaxy groups are more than an intermediate scale between clusters and halos hosting individual galaxies, they are crucial laboratories capable of testing a range of astrophysics from how galaxies form and evolve to large scale structure…

Astrophysics of Galaxies · Physics 2021-06-28 Benjamin D. Oppenheimer , Arif Babul , Yannick Bahé , Iryna S. Butsky , Ian G. McCarthy

Recently, there has been a surge of international interest in extraterrestrial exploration targeting the Moon, Mars, the moons of Mars, and various asteroids. This contribution discusses how current state-of-the-art Earth-based testing for…

Instrumentation and Methods for Astrophysics · Physics 2024-05-21 Wei Hu , Pei Li , Arno Rogg , Alexander Schepelmann , Colin Creager , Samuel Chandler , Ken Kamrin , Dan Negrut

Microgravity rendezvous and close proximity operations (RPO) is a growing area of interest for applications spanning in-space assembly and manufacturing (ISAM), orbital debris remediation, and small body exploration. Microgravity…

Stage IV surveys like LSST and Euclid present a unique opportunity to shed light on the nature of dark energy. However, their full constraining power cannot be unlocked unless accurate predictions are available at all observable scales.…

Cosmology and Nongalactic Astrophysics · Physics 2025-01-30 Daniela Saadeh , Kazuya Koyama , Xan Morice-Atkinson

Numerical MHD simulations play increasingly important role for understanding mechanisms of stellar magnetism. We present simulations of convection and dynamos in density-stratified rotating spherical fluid shells. We employ a new 3D…

Solar and Stellar Astrophysics · Physics 2015-09-03 Radostin D. Simitev , Alexander G. Kosovichev , Friedrich H. Busse

Earth sustains its magnetic field by a dynamo process driven by convection in the liquid outer core. Geodynamo simulations have been successful in reproducing many observed properties of the geomagnetic field. However, while theoretical…

General relativistic force-free electrodynamics is one possible plasma-limit employed to analyze energetic outflows in which strong magnetic fields are dominant over all inertial phenomena. The amazing images of black hole shadows from the…

Computational Physics · Physics 2021-03-09 J. F. Mahlmann , M. A. Aloy , V. Mewes , P. Cerdá-Durán

We present a series of radiative MHD simulations addressing the origin and distribution of mixed polarity magnetic field in the solar photosphere. To this end we consider numerical simulations that cover the uppermost 2-6 Mm of the solar…

Solar and Stellar Astrophysics · Physics 2015-06-19 M. Rempel

Transcranial magnetic stimulation (TMS) is a popular method for the noninvasive stimulation of neurons in the brain. It has become a standard instrument in experimental brain research and is approved for a range of diagnostic and…

Medical Physics · Physics 2023-12-27 Max Koehler , Stefan Goetz

The operation of the solar global dynamo appears to involve many dynamical elements. Self-consistent MHD simulations which realistically incorporate all of these processes are not yet computationally feasible, though some elements can now…

Astrophysics · Physics 2008-11-26 Allan Sacha Brun , Mark S. Miesch , Juri Toomre

We present high resolution simulations of a multiple merger of three disk galaxies including the evolution of magnetic fields performed with the N-body/SPH code Gadget. For the first time, we embed the galaxies in a magnetized, low-density…

Astrophysics of Galaxies · Physics 2015-05-20 H. Kotarba , H. Lesch , K. Dolag , T. Naab , P. H. Johansson , J. Donnert , F. A. Stasyszyn

The Compact Muon Solenoid (CMS) is a general purpose detector, designed to run at the highest luminosity at the CERN Large Hadron Collider (LHC). Its distinctive features include a 4 T superconducting solenoid with 6-m-diameter by…

Instrumentation and Detectors · Physics 2016-08-09 V. I. Klyukhin , N. Amapane , A. Ball , B. Curé , A. Gaddi , H. Gerwig , M. Mulders , A. Hervé , R. Loveless

The impact of the magnetic field on postbounce supernova dynamics of non-rotating stellar cores is studied by performing three-dimensional magnetohydrodynamics simulations with spectral neutrino transport. The explodability of strongly and…

High Energy Astrophysical Phenomena · Physics 2022-08-19 Jin Matsumoto , Yuta Asahina , Tomoya Takiwaki , Kei Kotake , Hiroyuki R. Takahashi

We present the results of a series of time-dependent numerical simulations of cold, magnetocentrifugally launched winds from accretion disks. Our simulations span four and half decades of mass loading; in the context of a disk with a…

Astrophysics · Physics 2009-11-10 Jeffrey M. Anderson , Zhi-Yun Li , Ruben Krasnopolsky , Roger D. Blandford

There is an electromagnetic factor of correlation between gravitational mass and inertial mass, which in specific electromagnetic conditions, can be reduced, made negative and increased in numerical value. This means that gravitational…

General Physics · Physics 2013-12-04 Fran De Aquino

We present a large suite of cosmological simulations, the FORGE (F-of-R Gravity Emulator) simulation suite, which is designed to build accurate emulators for cosmological observables in galaxy clustering, weak gravitational lensing and…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-17 Christian Arnold , Baojiu Li , Benjamin Giblin , Joachim Harnois-Déraps , Yan-Chuan Cai

Due to its relatively large eccentricity and proximity to the Sun, Mercury's orbital motion provides one of the best solar-system tests of relativistic gravity. We emphasize the number of feasible relativistic gravity tests that can be…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Slava G. Turyshev , John D. Anderson , Ronald W. Hellings

Capsule robots are promising tools for minimally invasive diagnostics and therapy, with applications from gastrointestinal endoscopy to targeted drug delivery and biopsy sampling. Conventional magnetic capsule robots embed bulky permanent…

Robotics · Computer Science 2026-02-12 Jin Zhou , Chongxun Wang , Zikang Shen , Fangzhou Xia

A method and facilities for delivering payload and people into outer space are presented. This method uses, in general, engines located on a planetary surface. The installation consists of a space apparatus, power drive stations, which…

General Physics · Physics 2009-03-31 Alexander Bolonkin , Mark Krinker

This paper presents a strategy for optimal manoeuvre design of multi-satellite formation flying in low Earth orbit environment, with the aim of providing a tool for mission operation design. The proposed methodology for formation flying…

Instrumentation and Methods for Astrophysics · Physics 2022-02-09 Francesca Scala , Gabriella Gaias , Camilla Colombo , Manuel Martìn-Neira
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