Results 91 to 100 of about 5,320,922 (369)

Dynamical simulations of the HR8799 planetary system [PDF]

, 2010
HR8799 is a young (20–160 Myr) A-dwarf main sequence star with a debris disc detected by IRAS (InfraRed Astronomical Satellite). In 2008, it was one of two stars around which exoplanets were directly imaged for the first time.
Horner, J., Marshall, J., J. Horner, J. Marshall, Carter, A., A. Carter   +5 more
core   +1 more source

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

Guangqi: A 2D Radiation Hydrodynamic Code with Realistic Equations of State

The Astrophysical Journal Supplement Series
We present Guangqi , a new 2D, finite-volume radiation hydrodynamics code designed for high-performance astrophysical simulations. The code simultaneously resolves the hydrodynamic equations for complex equations of state (EoS) and implicit radiation ...
Zhuo Chen, Xue-Ning Bai
doaj   +1 more source

A numerical model of standard to blowout jets

, 2013
We report on three-dimensional (3D) MHD simulations of the formation of jets produced during the emergence and eruption of solar magnetic fields. The interaction between an emerging and an ambient magnetic field in the solar atmosphere leads to (external)
Archontis, Vasilis, Hood, A. W.
core   +1 more source

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

Advanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang, Tongji Zhu, PeiYu Cai, Xiaoming Ma, Zhen Wang, Ruifu Zhang, Yi Hao, Jingdi Lu, Liubing He, Jun Xu, Yuejie Zhang, Wanjun Jiang, Jing Tao, Shiming Lei, Pavel Parchinskiy, Jing Teng, Lingfei Wang, Wei Niu, Elton J.G. Santos, Xiaoqian Zhang, Peng Li   +20 more
wiley   +1 more source

An Efficient Algorithm for Astrochemical Systems Using Stoichiometry Matrices

The Astrophysical Journal Supplement Series
Astrochemical simulations are a powerful tool for revealing chemical evolution in the interstellar medium. Astrochemical calculations require efficient processing of large matrices for the chemical networks.
Kazutaka Motoyama, Ruben Krasnopolsky, Hsien Shang, Kento Aida, Eisaku Sakane   +4 more
doaj   +1 more source

General-relativistic Radiation Transport Scheme in Gmunu. I. Implementation of Two-moment-based Multifrequency Radiative Transfer and Code Tests

The Astrophysical Journal Supplement Series, 2023
We present the implementation of a two-moment-based general-relativistic multigroup radiation transport module in the G eneral-relativistic mu ltigrid nu merical ( Gmunu ) code.
Patrick Chi-Kit Cheong, Harry Ho-Yin Ng, Alan Tsz-Lok Lam, Tjonnie Guang Feng Li   +3 more
doaj   +1 more source

Propagating Wave Phenomena Detected in Observations and Simulations of the Lower Solar Atmosphere

, 2012
We present high-cadence observations and simulations of the solar photosphere, obtained using the Rapid Oscillations in the Solar Atmosphere imaging system and the MuRAM magnetohydrodynamic (MHD) code, respectively. Each data set demonstrates a wealth of
Shelyag, S., Christian, D. J., Jess, D. B.; id_orcid, Christian, Damian, Keenan, Francis, Keys, P.H., Mathioudakis, Mihalis, Christian, D.J., Mathioudakis, M., Keys, P. H. ; id_orcid, Keenan, F.P., Jess, David, Shelyag, Sergiy, Keys, Peter, Keenan, F. P.   +14 more
core   +1 more source

Ultra-diffuse galaxies in the Auriga simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We investigate the formation of ultra-diffuse galaxies (UDGs) using the Auriga high-resolution cosmological magnetohydrodynamical simulations of Milky Way–sized galaxies.
Shihong Liao, Liang Gao, C. Frenk, R. Grand, Qi Guo, F. Gómez, F. Marinacci, R. Pakmor, S. Shao, V. Springel   +9 more
semanticscholar   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source