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According to the photo-heating model of the intergalactic medium (IGM), He II reionization is expected to affect its thermal evolution. Evidence for additional energy injection into the IGM has been found at $3\lesssim z\lesssim4$, though…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Elisa Boera , Michael T. Murphy , George D. Becker , James S. Bolton

We present a method for performing multithermal-multibaric molecular dynamics simulations that sample entire regions of the temperature-pressure (TP) phase diagram. The method uses a variational principle [Valsson and Parrinello, Phys. Rev.…

Statistical Mechanics · Physics 2019-02-13 Pablo M. Piaggi , Michele Parrinello

The thermal state of the post-reionization IGM is sensitive to the timing of reionization and the nature of the ionizing sources. We have modelled here the thermal state of the IGM in cosmological radiative transfer simulations of a…

Cosmology and Nongalactic Astrophysics · Physics 2018-05-17 Laura C. Keating , Ewald Puchwein , Martin G. Haehnelt

The polar condensation/sublimation of CO2, that involve about one fourth of the atmosphere mass, is the major Martian climatic cycle. Early observations in visible and thermal infrared have shown that the sublimation of the Seasonal South…

Recent study [1] has suggested that warm inflation may be realized with a minimal extension of the Standard Model by a single scalar inflaton field with an axion-like coupling to gluons. Motivated by this framework, we investigate the…

High Energy Physics - Phenomenology · Physics 2026-03-18 Quan Chen , Siyu Jiang , Dayun Qiu , Peilin Chen , Fa Peng Huang

Airborne dust plays an active role in determining the thermal structure and chemical composition of the present-day atmosphere of Mars and possibly the planet's climate evolution over time through radiative--convective and cloud…

Earth and Planetary Astrophysics · Physics 2023-09-06 Ananyo Bhattacharya , Cheng Li , Nilton O. Renno , Sushil K. Atreya , David Sweeney

This thesis work aims to study the possibility of energy production on Martian soil and, in particular, to establish what might be an optimal configuration for an energy system. This goal has been contextualized in the will to feed a…

Earth and Planetary Astrophysics · Physics 2021-05-04 Gianmario Broccia

Gravitational waves (GWs) passing through a viscous shell of matter are expected to be damped resulting in an increase in the temperature of the fluid as energy is transferred to it from the GWs. In previous work we constructed a model for…

General Relativity and Quantum Cosmology · Physics 2024-07-25 Nigel T. Bishop , Vishnu Kakkat , Amos S. Kubeka , Monos Naidoo , Petrus J. van der Walt

We assume the non-flat Friedmann-Robertson-Walker (FRW) Universe as a thermodynamical system. We assume the cosmological horizon as a inner trapping horizon which is treated as dynamical apparent horizon of FRW Universe. We write the…

General Relativity and Quantum Cosmology · Physics 2020-10-06 Ujjal Debnath

The Martian climate is governed by an annual cycle, that results in the condensation of CO$_{2}$ ice during winter, up to a meter thick at the pole and thousands of kilometers in extension. Water and dust may be trapped during the…

Earth and Planetary Astrophysics · Physics 2018-08-15 François Andrieu , Frédéric Schmidt , Sylvain Douté , Eric Chassefière

Brown dwarfs are essential targets for understanding planetary and sub-stellar atmospheres across a wide range of thermal and chemical conditions. As surveys continue to probe ever deeper, and as observing capabilities continue to improve,…

Earth and Planetary Astrophysics · Physics 2021-11-24 Shih-Yun Tang , Tyler D. Robinson , Mark S. Marley , Natasha E. Batalha , Roxana Lupu , L. Prato

We describe the challenges and pathways when probing inflaton as dark matter with the stochastic gravitational waves (GWs) signal generated during the (p)reheating. Such scenarios are of utmost interest when no other interaction between the…

High Energy Physics - Phenomenology · Physics 2024-01-24 Anish Ghoshal , Pankaj Saha

Gas giant exoplanets orbiting at close distances to the parent star are subjected to large radiation and stellar wind fluxes. In this paper, hydrodynamic simulations of the planetary upper atmosphere and its interaction with the stellar…

Earth and Planetary Astrophysics · Physics 2016-03-23 Duncan Christie , Phil Arras , Zhi-Yun Li

Thermal electromagnetic radiation is emitted by the quark-gluon plasma (QGP) throughout its space-time evolution, with production rates that depend characteristically on the temperature. We study this temperature using thermal photons and…

Nuclear Theory · Physics 2024-12-16 Olaf Massen , Govert Nijs , Mike Sas , Wilke van der Schee , Raimond Snellings

A theory for the microscopic structure and the vibrational properties of soft sphere glass at finite temperature is presented. With an effective potential, derived here, the phase diagram and vibrational properties are worked out around the…

Soft Condensed Matter · Physics 2016-04-13 E. DeGiuli , E. Lerner , M. Wyart

Pseudoheating of ions in the presence of Alfv\'en waves is studied. We show that this process can be explained by $E\times B$ drift. The analytic solution obtained in this paper are quantitatively in accordance with previous results. Our…

Plasma Physics · Physics 2015-06-12 Chuanfei Dong , Nagendra Singh

In this paper, we analyze water ice occurrences at the surface of Mars using near-infrared observations, and we study their distribution with a climate model. Latitudes between 45{\deg}S and 50{\deg}N are considered. Data from the…

Earth and Planetary Astrophysics · Physics 2015-05-27 Mathieu Vincendon , François Forget , John Mustard

Winds from pregalactic starbursts and 'miniquasars' may pollute the IGM with metals and raise its temperature to a high adiabat, and so inhibit the formation of early galaxies. We compute the thermal history of the IGM when it experiences a…

Astrophysics · Physics 2009-11-07 A. J. Benson , P. Madau

Observations of water ice clouds and aerosols on Mars can provide important insights into the complexity of the water cycle. Recent observations have indicated an important link between dust activity and the water cycle, as intense dust…

Thermal observations of the Pluto-Charon system acquired by the Herschel Space Observatory in February 2012 are presented. They consist of photometric measurements with the PACS and SPIRE instruments (nine visits to the Pluto system each),…

Earth and Planetary Astrophysics · Physics 2016-03-23 E. Lellouch , P. Santos-Sanz , S. Fornasier , T. Lim , J. Stansberry , E. Vilenius , Cs. Kiss , T. Müller , G. Marton , S. Protopapa , P. Panuzzo , R. Moreno