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Related papers: Modeling Low-Temperature Plasmas Simulating Titan'…

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Particle-in-Cell (PIC) method is a powerful plasma simulation tool for investigating high-intensity femtosecond laser-matter interaction. However, its simulation capability at high-density plasmas around the Fermi temperature is considered…

We study the nuclear liquid-gas phase transition on the basis of a two-component lattice gas model. A Metropolis type of sampling method is used to generate microscopic states in the canonical ensemble. The effective equation of state and…

Nuclear Theory · Physics 2009-10-31 J. Borg , I. N. Mishustin , J. P. Bondorf

An important process for antimatter experiments is the cooling of particles in a Penning-Malmberg trap to experimentally useful temperatures. A non-neutral plasma of one species (e.g. antiprotons) can be collisionally cooled on another…

Plasma Physics · Physics 2025-11-13 James C. Welch , Louis Jose , Timothy D. Tharp , Scott D. Baalrud

A test case, using a similar methodology and experimental set-up than previous test case TC5-Level 1 is presented in this paper. An inductively coupled plasma torch, working at atmospheric pressure, is used to create N2-CH4 Titan-like…

Plasma Physics · Physics 2009-11-16 Damien Vacher , Pascal André , Mario Lino Da Silva , Michel Dudeck , Géraldine Faure

We report on the low temperature behaviour of the colloidal electrolyte by means of Molecular Dynamics simulations, where the electrostatic interactions were modeled using effective screened interactions. As in previous works, we have found…

Soft Condensed Matter · Physics 2009-11-13 Jose B. Caballero , Antonio M. Puertas

We perform and analyze global Particle-in-Cell (PIC) simulations of the interaction between solar wind and an outgassing comet with the goal of studying the plasma kinetic dynamics of a cometary environment. To achieve this, we design and…

The latest ALMA and JWST observations provide new information on the birth and evolution of galaxies in the early Universe, at the epoch of reionization. Of particular importance are measurements at redshift $ z > 5$ of their cold-gas…

Astrophysics of Galaxies · Physics 2025-01-15 Benedetta Casavecchia , Umberto Maio , Céline Péroux , Benedetta Ciardi

We perform a suite of simulations with realistic gravity and thermal balance in shells to quantify the role of the ratio of cooling time to the free-fall time ($t_{\rm cool}/t_{\rm ff}$) and the amplitude of density perturbations ($\delta…

Astrophysics of Galaxies · Physics 2019-07-17 Prakriti Pal Choudhury , Prateek Sharma , Eliot Quataert

Computer simulations of (i) a [C12mim][Tf2N] film of nanometric thickness squeezed at kbar pressure by a piecewise parabolic confining potential reveal a mesoscopic in-plane density and composition modulation reminiscent of mesophases seen…

Materials Science · Physics 2009-11-19 N. Manini , M. Cesaratto , M. G. Del Popolo , P. Ballone

K-line profiles emitted from a warm dense plasma environment are used for diagnostics of Ar droplet plasmas created by high energy laser pulses. We observe temperature gradients within the Ar droplet from cold temperatures of the order of…

Plasma Physics · Physics 2017-09-27 Yiling Chen , Andrea Sengebusch , Heidi Reinholz , Gerd Röpke

An accurate estimate of the energy budget (heating and cooling) of the ionosphere and thermosphere, especially during space weather events, has been a challenge. The abundance of Nitric Oxide (NO), a minor species in the thermosphere, is an…

Space Physics · Physics 2019-01-23 Cissi Y. Lin , Yue Deng , Karthik Venkataramani , Justin Yonker , Scott M. Bailey

Zero-dimensional kinetic modeling of atmospheric pressure Ar-N2-H2 nonthermal plasma was carried out to gain mechanistic insights into ammonia formation during plasma-assisted catalysis of ammonia synthesis. The kinetic model was developed…

Plasma Physics · Physics 2024-03-26 Zihan Lin , Shota Abe , Zhe Chen , Surabhi Jaiswal , Bruce E. Koel

K-line profiles emitted from a warm dense plasma environment are used for diagnostics of Ar droplet plasmas created by high energy laser pulses. Analyzing the temporally and spacially integrated spectra, we infer temperature gradients…

Plasma Physics · Physics 2017-09-26 A Sengebusch , H Reinholz , G Röpke

Carbon containing molecules in cold molecular clouds show various levels of isotopic fractionation through multiple observations. To understand such effects, we have developed a new gas-grain chemical model with updated 13C fractionation…

Astrophysics of Galaxies · Physics 2020-10-07 Jean-Christophe Loison , Valentine Wakelam , Pierre Gratier , Kevin M. Hickson

Titan has a climate system with similarities to Earth, including the presence of a thick atmosphere made up of several atmospheric layers. As on Earth, Titan's climate is influenced by several factors: the gaseous species making up the…

Earth and Planetary Astrophysics · Physics 2025-03-17 Zoé Perrin , Nathalie Carrasco , Thomas Gautier , Nathalie Ruscassier , Julien Maillard , Carlos Afonso , Ludovic Vettier

There is accumulating evidence for the presence of complex molecules, including carbon-bearing and organic molecules, in the interstellar medium. Much of this evidence comes to us from studies of chemical composition, photo- and…

Earth and Planetary Astrophysics · Physics 2015-10-21 David W. Marshall , H. R. Sadeghpour

We compute numerical simulations of spherical collapse triggered by a slow increase in external pressure. We compare isothermal models to models including cooling with a simple but self-consistent treatment of the coupling between gas,…

Astrophysics · Physics 2009-11-11 P. Lesaffre , A. Belloche , J. -P. Chieze , P. Andre

The Cassini Plasma Spectrometer (CAPS) Electron Spectrometer (ELS) instrument onboard Cassini revealed an unexpected abundance of negative ions above 950 km in Titan's ionosphere. \textit{In situ} measurements indicated the presence of…

Earth and Planetary Astrophysics · Physics 2019-03-06 David Dubois , Nathalie Carrasco , Jérémy Bourgalais , Ludovic Vettier , Ravindra T. Desai , Anne Wellbrock , Andrew J. Coates

We present an extended version of the semi-analytical model, GalICS. Like its predecessor, eGalICS applies a post-treatment of the baryonic physics on pre-computed dark-matter merger trees extracted from an N-body simulation. We review all…

Astrophysics of Galaxies · Physics 2015-02-25 Morgane Cousin , Guilaine Lagache , Matthieu Bethermin , Bruno Guiderdoni

We present a multi-phase representation of the ISM in NB-TSPH simulations of galaxy formation and evolution with particular attention to the case of early-type galaxies. Cold gas clouds are described by the so-called sticky particles…

Astrophysics · Physics 2009-11-13 Emiliano Merlin , Cesare Chiosi
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