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Understanding the generation mechanism of the heating flux is essential for the design of hypersonic vehicles. We proposed a novel formula to decompose the heat flux coefficient into the contributions of different terms by integrating the…

Fluid Dynamics · Physics 2021-06-22 Dong Sun , Qilong Guo , Xianxu Yuan , Haoyuan Zhang , Chen Li , Pengxin Liu

The power load to the divertor surfaces is a key concern for future devices such as ITER, due to the thermal limits on the material surface. One factor that characterizes the heat flux to the divertor is the fall off length in the…

Plasma Physics · Physics 2014-06-12 A. J. Thornton , A. Kirk , MAST Team

In this Letter, we present Interface Region Imaging Spectrograph Fe XXI 1354.08 A forbidden line emission of two magnetic flux ropes (MFRs) that caused two fast coronal mass ejections with velocities of $\ge$1000 km s$^{-1}$ and strong…

Solar and Stellar Astrophysics · Physics 2016-05-25 X. Cheng , M. D. Ding

Visible CW (continuous wave) -laser heating effects on the bulk superconductors CeFeAsO0.65F0.35 and MgB2 with 1.5 mm thickness have been investigated by measuring the temperature dependence of electrical resistivity. Each compound shows a…

Superconductivity · Physics 2017-03-31 Jiro Kitagawa , Tatsuya Yoshika , Nobuhiro Gonda

The aim of the JET ITER-like Wall Project was to provide JET with the plasma facing material combination now selected for the DT phase of ITER (bulk beryllium main chamber limiters and a full tungsten divertor) and, in conjunction with the…

Instrumentation and Detectors · Physics 2013-11-21 V Riccardo , P Lomas , G F Matthews , I Nunes , V Thompson , E Villedieu , JET EFDA Contributors

Photoionization models so far are unable to account for the high electron temperature Te([O III]) implied by the line ratio [O III]4363A/[O III]5007A in low-metallicity blue compact dwarf galaxies, casting doubts on the assumption of…

Astrophysics · Physics 2009-11-13 D. Pequignot

In a new survey of nearby galaxies from stacked photographic images, M87 shows a diffuse fan of stellar material which extends along the projected SE (major) axis out to about 100 kpc at a limiting (B) surface brightness of $28 \hbox{mag…

Astrophysics · Physics 2009-10-30 Melinda L. Weil , Jonathan Bland-Hawthorn , David F. Malin

A baffled Snowflake Minus Low-Field Side (SF-LFS) is geometrically-optimised in TCV, increasing divertor neutral pressure, to evaluate the roles of divertor closure (comparing with an unbaffled SF-LFS) and magnetic geometry (comparing with…

Pure spin current has transfigured the energy-efficient spintronic devices and it has the salient characteristic of transport of the spin angular momentum. Spin pumping is a potent method to generate pure spin current and for its increased…

We obtained new upper limits on the diffuse gamma rays from the inner Galactic (IG) and outer Galactic (OG) planes in 3.10 TeV region, using the Tibet air shower data and new Monte Carlo simulation results. A difference of the effective…

Astrophysics · Physics 2007-05-23 The Tibet AS Gamma Collaboration , M. Amenomori

Past kinetic simulations and spacecraft observations have shown that traveling foreshocks (TFs) are bounded by either foreshock compressional boundaries (FCBs) or foreshock bubbles (FBs). Here we present four TFs with a different kind of…

Solar and Stellar Astrophysics · Physics 2026-01-27 Primoz Kajdic , Xóchitl Blanco-Cano , Diana Rojas-Castllo , Nojan Omidi

After discovery of the Fermi bubbles, giant structures observed in radio to X-rays have been discussed as possi- ble evidence of past activities in the Galactic Center (GC). We report here on the analysis of Suzaku data pointing around the…

Astrophysics of Galaxies · Physics 2018-08-08 Masahiro Akita , Jun Kataoka , Makoto Arimoto , Yoshiaki Sofue , Tomonori Totani , Yoshiyuki Inoue , Shinya Nakashima

We present a 2.5D MHD simulation of a magnetic flux rope (FR) propagating in the heliosphere and investigate the cause of the observed sharp plasma beta transition. Specifically, we consider a strong internal magnetic field and an explosive…

Solar and Stellar Astrophysics · Physics 2015-06-17 Neel P. Savani , A. Vourlidas , D. Shiota , M. G. Linton , K. Kusano , N. Lugaz , A. P. Rouillard

In the baseline design of the International Linear Collider (ILC) an undulator-based source is foreseen for the positron source. In this study the energy deposition in the pulsed flux concentrator (FC) of positron source is calculated for…

Accelerator Physics · Physics 2018-01-26 Andriy Ushakov , Gudrid Moortgat-Pick , Sabine Riemann

It remains unclear how solar flares are triggered and in what conditions they can be eruptive with coronal mass ejections. Magnetic flux ropes (MFRs) has been suggested as the central magnetic structure of solar eruptions, and their ideal…

Solar and Stellar Astrophysics · Physics 2021-03-17 Aiying Duan , Chaowei Jiang , Zhenjun Zhou , Xueshang Feng , Jun Cui

Prompted by recent experimental developments, a theory of surface scattering of fast atoms at grazing incidence is developed. The theory gives rise to a quantum mechanical limit for ordered surfaces that describes coherent diffraction peaks…

Atomic Physics · Physics 2022-09-23 J. R. Manson , Hocine Khemliche , Philippe Roncin

We investigate the fine structure of the sunspot penumbra by means of a model that allows for a flux tube in horizontal pressure balance with the magnetic background atmosphere in which it is embedded. We apply this model to…

Astrophysics · Physics 2009-11-10 J. M. Borrero , A. Lagg , S. K. Solanki , M. Collados

Dry-wall laser inertial fusion (LIF) chambers will have to withstand strong bursts of fast charged particles which will deposit tens of kJ m$^{-2}$ and implant more than 10$^{18}$ particles m$^{-2}$ in a few microseconds at a repetition…

We measure hot and cold spots on the microwave background associated with supercluster and supervoid structures identified in the Sloan Digital Sky Survey Luminous Red Galaxy catalog. The structures give a compelling visual imprint, with a…

Astrophysics · Physics 2009-11-13 Benjamin R. Granett , Mark C. Neyrinck , István Szapudi

The strong correlation between energy injection and mid-infrared (mid-IR) emission observed during solar flares can be used to probe energy deposition throughout the chromosphere, since the IR tracks prompt flare-induced changes in electron…

Solar and Stellar Astrophysics · Physics 2026-05-08 Miguel Rojas-Quesada , Lyndsay Fletcher , Hugh Hudson , Sargam M. Mulay , Paulo J. A. Simoes