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相关论文: Ionization rates in the heliosheath and in astrosh…

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Various hydrodynamic models of the heliospheric interface have been presented meanwhile, numerically simulating the interaction of the solar wind plasma bubble with the counterstreaming partially ionized interstellar medium. In these model…

天体物理学 · 物理学 2009-11-10 H. J. Fahr , M. Bzowski

We investigate a non-equilibrium ionization state and an electron-ion two-temperature structure of the intracluster medium (ICM) in merging galaxy clusters using a series of N-body and hydrodynamic simulations. Mergers with various sets of…

宇宙学与河外天体物理 · 物理学 2015-05-14 Takuya Akahori , Kohji Yoshikawa

Stark transitions and induced annihilation of antiproton in the collisions of antiprotonic helium ions (\bar{p}He^{+2})_{nl} with He atoms at very low energy (~ 10 K) are considered in the framework of quantum coupled-channels method taking…

核理论 · 物理学 2007-11-29 G. Ya. Korenman , S. N. Yudin

Understanding the response of the surface of metallic solids to external electric field sources is crucial to characterize electrode-electrolyte interfaces. Continuum electrostatics offer a simple description of the induced charge density…

化学物理 · 物理学 2021-12-14 Giovanni Pireddu , Laura Scalfi , Benjamin Rotenberg

We present calculations of the electron angular distributions in the single ionization of helium by 1-MeV proton impact at momentum transfer of 0.75 a.u. and ejected-electron energy of 6.5 eV. The results using the first and second Born…

原子物理 · 物理学 2017-11-02 O. Chuluunbaatar , S. A. Zaytsev , K. A. Kouzakov , A. Galstyan , V. L. Shablov , Yu. V. Popov

In this paper, the influence of chemi-ionization processes in $H^*(n \ge 2) + H(1s)$ collisions, as well as the influence of inverse chemi-recombination processes on hydrogen atom excited-state populations in solar photosphere, are compared…

太阳与恒星天体物理 · 物理学 2011-05-12 Anatolij A. Mihajlov , Ljubinko M. Ignjatovic , Vladimir A. Sreckovic , Milan S. Dimitrijevic

We analyze how bound-state excitation, electron exchange and the residual binding potential influence above-threshold ionization (ATI) in Helium prepared in an excited $p$ state, oriented parallel and perpendicular to a linearly polarized…

To study the electrochemical reaction on surfaces, phase interfaces, and crack surfaces in the lithium ion battery electrode particles, a phase-field model is developed, which describes fracture in large strains and anisotropic…

材料科学 · 物理学 2016-05-31 Ying Zhao , Bai-Xiang Xu , Peter Stein , Dietmar Gross

Electron impact ionization is critical in producing the ionospheres on many planetary bodies and, as discussed here, is critical for interpreting spacecraft and telescopic observations of the tenuous atmospheres of the icy Galilean…

地球与行星天体物理 · 物理学 2023-03-22 Shane R. Carberry Mogan , Robert E. Johnson , Audrey Vorburger , Lorenz Roth

It is well known that the Solar System is presently moving through a partially ionized local interstellar medium. This gives rise to a counter-flow situation requiring a consistent description of behaviour of the two fluids -- ions and…

天体物理学 · 物理学 2009-11-10 H. J. Fahr , Maciej Bzowski

The neutralization process of an ion particle on a surface is key issue of the plasma-wall interaction (PWI). We investigated helium (He) ion injection onto a tungsten surface using time-dependent density functional theory (TDDFT)…

化学物理 · 物理学 2024-10-30 Atsushi M. Ito , Yuto Toda , Arimichi Takayama

Modeling of the global heliosphere seeks to investigate the interaction of the solar wind with the partially ionized local interstellar medium. Models that treat neutral hydrogen self-consistently and in great detail, together with the…

天体物理学 · 物理学 2008-11-01 H. -R. Müller , V. Florinski , J. Heerikhuisen , V. V. Izmodenov , K. Scherer , D. Alexashov , H. -J. Fahr

Strong ionization on close-in extrasolar giant planets suggests that their atmospheres may be affected by ion drag and resistive heating arising from wind-driven electrodynamics. Recent models of ion drag on these planets, however, are…

地球与行星天体物理 · 物理学 2015-06-23 T. T. Koskinen , R. V. Yelle , P. Lavvas , J. Y-K. Cho

Ion fractional charge states, measured in situ in the heliosphere, depend on the properties of the plasma in the inner corona. As the ions travel outward in the solar wind and the electron density drops, the charge states remain essentially…

太阳与恒星天体物理 · 物理学 2019-01-18 Roberto Lionello , Cooper Downs , Jon A. Linker , Zoran Mikić , John Raymond , Chengcai Shen , Marco Velli

We performed the non-local thermodynamic equilibrium (non-LTE) calculations for Ti I-II with the updated model atom that includes quantum-mechanical rate coefficients for inelastic collisions with hydrogen atoms. We have calculated for the…

太阳与恒星天体物理 · 物理学 2020-05-19 T. M. Sitnova , S. A. Yakovleva , A. K. Belyaev , L. I. Mashonkina

We report the first measurements of the inelastic spin exchange collision rate between the Hyperfine (HF) levels of antiprotonic helium. We measure the time dependent evolution of the (37, 35) substates to obtain an inelastic collision rate…

We have investigated cold ionizing heteronuclear collisions in dilute mixtures of metastable (2 3S1) 3He and 4He atoms, extending our previous work on the analogous homonuclear collisions [R. J. W. Stas et al., PRA 73, 032713 (2006)]. A…

原子物理 · 物理学 2009-11-13 J. M. McNamara , R. J. W. Stas , W. Hogervorst , W. Vassen

Charge and energy fractionalization are among the most intriguing features of interacting onedimensional fermion systems. In this work we determine how these phenomena are modified in the presence of an interaction quench. Charge and energy…

强关联电子 · 物理学 2017-02-02 Alessio Calzona , Filippo Maria Gambetta , Matteo Carrega , Fabio Cavaliere , Maura Sassetti

We address the role of fluctuations in strongly interacting matter during the dense stages of a heavy-ion collision through its electromagnetic emission. Fluctuations of isospin charge are considered in a thermal system at rest as well as…

高能物理 - 唯象学 · 物理学 2009-11-07 M. Prakash , R. Rapp , J. Wambach , I. Zahed

The charge exchange between the interstellar medium (ISM) and the solar wind plasma is crucial for determining the structures of the heliosphere. Since both the neutral-ion and neutral-neutral collision mean free paths are either comparable…

空间物理 · 物理学 2024-03-20 Yuxi Chen , Gabor Toth , Erick Powell , Talha Arshad , Ethan Bair , Marc Kornbleuth , Merav Opher