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Thermal dust polarization is a powerful tool to probe magnetic fields ($\textbf{B}$) and grain properties. However, a systematic study of the dependence of dust polarization on grain properties in protostellar environments is not yet…

Astrophysics of Galaxies · Physics 2024-03-14 Nguyen Chau Giang , Thiem Hoang

In fusion devices, the geometry of the confining magnetic field has a significant impact on the instabilities that drive turbulent heat loss. This is especially true of stellarators, where the "trapped electron mode" (TEM) is stabilised if…

Nanocrystalline metals are promising radiation tolerant materials due to their large interfacial volume fraction, but irradiation-induced grain growth can eventually degrade any improvement in radiation tolerance. Therefore, methods to…

We perform 2D and 3D kinetic simulations of reconnection-mediated turbulent flares in a magnetized electron-positron plasma, with weak and strong radiative cooling. Such flares can be generated around neutron stars and accreting black…

High Energy Astrophysical Phenomena · Physics 2021-11-17 J. Nättilä , A. M. Beloborodov

Accurate temperature calculations for circumstellar disks are particularly important for their chemical evolution. Their temperature distribution is determined by the optical properties of the dust grains, which, among other parameters,…

Solar and Stellar Astrophysics · Physics 2017-07-26 S. Heese , S. Wolf , A. Dutrey , S. Guilloteau

The response of materials to dynamical, or shock, loading is important to planetary science, aerospace engineering, and energetic materials. Thermal-activated processes, including chemical reactions and phase transitions, are significantly…

Materials Science · Physics 2023-03-31 Chunyu Li , Juan Carlos Verduzco , Brian H. Lee , Robert J. Appleton , Alejandro Strachan

Tungsten is the main candidate material for plasma-facing armour components in future fusion reactors. Bombardment with energetic fusion neutrons causes collision cascade damage and defect formation. Interaction of defects with helium,…

Materials Science · Physics 2018-12-31 Suchandrima Das , Ruqing Xu , Wenjun Liu , Felix Hofmann

In this work, we combine Density Functional Theory data with a Thermodynamic and a kinetic model to determine the total concentration of hydrogen implanted in the sub-surface of tungsten exposed to a hydrogen flux. The sub-surface hydrogen…

Materials Science · Physics 2019-04-30 E. Hodille , N Fernandez , Z. Piazza , M. Ajmalghan , Y. Ferro

Rings and gaps are ubiquitous in protoplanetary disks. Larger dust grains will concentrate in gaseous rings more compactly due to stronger aerodynamic drag. However, the effects of dust concentration on the ring's thermal structure have not…

Earth and Planetary Astrophysics · Physics 2021-12-22 Shangjia Zhang , Xiao Hu , Zhaohuan Zhu , Jaehan Bae

Hydrogen isotope (HI) retention poses a key issue for tungsten (W)-based plasma-facing materials (PFMs) in fusion devices, where microstructures such as dislocations (DLs) and grain boundaries (GBs) play a dominant role. Existing…

Materials Science · Physics 2025-07-29 Yuanyuan Zhang , Xiaoru Chen Chuanguo Zhang , Yonggang Li

There is a need for numerical models capable of predicting local accumulation of hydrogen near stress concentrators and crack tips to prevent and mitigate hydrogen assisted fracture in steels. The experimental characterisation of trapping…

Applied Physics · Physics 2020-10-27 A. Díaz , A. Zafra , E. Martínez-Pañeda , J. M. Alegre , J. Belzunce , I. I. Cuesta

Engineering atomic-scale defects is crucial for realizing wafer-scale, single-crystalline transition metal dichalcogenide monolayers for electronic devices. However, connecting atomic-scale defects to larger morphologies poses a significant…

We calibrate a (3+1)-dimensional multistage hybrid framework using the measured pseudo-rapidity distribution of charged particles and rapidity distribution of net protons for central Au+Au collisions at $\sqrt{s_{\rm…

Nuclear Theory · Physics 2024-05-09 Lipei Du , Han Gao , Sangyong Jeon , Charles Gale

New results from MAST are presented that focus on validating models in order to extrapolate to future devices. Measurements during start-up experiments have shown how the bulk ion temperature rise scales with the square of the reconnecting…

Plasma Physics · Physics 2017-08-02 A Kirk , J Adamek , RJ Akers , S Allan , L Appel , F Arese Lucini , M Barnes , T Barrett , N Ben Ayed , W Boeglin , J Bradley , P K Browning , J Brunner , P Cahyna , M Carr , F Casson , M Cecconello , C Challis , IT Chapman , S Chapman , S Conroy , N Conway , WA Cooper , M Cox , N Crocker , B Crowley , S Cardnell , J Chorley , G Cunningham , A Danilov , D Darrow , R Dendy , D Dickinson , W Dorland , B Dudson , L Easy , S Elmore , M Evans , T Farley , N Fedorczak , A Field , I Fitzgerald , M Fox , S Freethy , L Garzotti , YC Ghim , K Gi , M Gorelenkova , W Gracias , C Gurl , W Guttenfelder , C Ham , D Harting , E Havlickova , N Hawkes , T Hender , S Henderson , J Hillesheim , B Hnat , J Horacek , J Howard , D Howell , D Dunai , G Fishpool , K Gibson , J Harrison , E Highcock , B Huang , M Inomoto , R Imazawa , O Jones , K Kadowaki , S Kaye , D Keeling , M Kocan , L Kogan , M Komm , W Lai , J Leddy , H Leggate , K Imada , I Klimek , J Hollocombe , B Lipschultz , S Lisgo , YQ Liu , B Lloyd , B Lomanowski , V Lukin , G Maddison , J Madsen , J Mailloux , R Martin , G McArdle , I Lupelli , K McClements , B McMillan , A Meakins , H Meyer , C Michael , F Militello , J Milnes , G Motojima , D Muir , G Naylor , A Nielsen , M O'Brien , M O'Mullane , J Olsen , J Omotani , Y Ono , S Pamela , AW Morris , T O'Gorman , L Pangione , F Parra , A Patel , W Peebles , R Perez , S Pinches , L Piron , M Price , M Reinke , P Ricci , F Riva , C Roach , M Romanelli , D Ryan , S Saarelma , A Saveliev , R Scannell , A Schekochihin , S Sharapov , R Sharples , V Shevchenko , K Shinohara , S Silburn , J Simpson , A Stanier , J Storrs , H Summers , Y Takase , P Tamain , H Tanabe , H Tanaka , K Tani , D Taylor , D Thomas , N Thomas-Davies , A Thornton , M Turnyanskiy , M Valovic , R Vann , F Van Wyk , N Walkden , T Watanabe , H Wilson , M Wischmeier , T Yamada , J Young , S Zoletnik , the MAST Team , the EUROfusion MST1 Team

Turbulent transport is known to limit the plasma confinement of present-day optimized stellarators. To address this issue, a novel method to strongly suppress turbulence in such devices is proposed, namely the resonant wave-particle…

Plasma Physics · Physics 2020-09-09 Alessandro Di Siena , Alejandro Banon Navarro , Frank Jenko

Embedded, Class 0/I protostellar disks represent the initial condition for planet formation. This calls for better understandings of their bulk properties and the dust grains within them. We model multi-wavelength dust continuum…

Solar and Stellar Astrophysics · Physics 2023-08-22 Wenrui Xu , Satoshi Ohashi , Yusuke Aso , Hauyu Baobab Liu

The properties of welded components are dominated by the microstructure evolution in the pool, where the solidification conditions are space-time variational. To represent the variational solidification conditions in the pool, the…

Materials Science · Physics 2022-09-16 Fengyi Yu , Yanhong Wei , Qiaodan Hu , Jianguo Li

Characterizing the dust thermal structure in protoplanetary disks is a fundamental task as the dust surface temperature can affect both the planetary formation and the chemical evolution. Since the temperature is dependent on many…

Solar and Stellar Astrophysics · Physics 2023-12-13 S. Gavino , J. Kobus , A. Dutrey , S. Guilloteau , S. Wolf , J. K. Jørgensen , R. Sharma

The polarized dust emission observed in Class 0 protostellar cores at high angular resolution with ALMA has raised several concerns about the grain alignment conditions in these regions. We aim to study the role of the radiation field on…

We study the structural evolution of turbulent molecular clouds under the influence of ionizing radiation emitted from a nearby massive star by performing a high resolution parameter study with the iVINE code. The temperature is taken to be…

Solar and Stellar Astrophysics · Physics 2015-05-19 Matthias Gritschneder , Andreas Burkert , Thorsten Naab , Stefanie Walch
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