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Related papers: Catastrophic Cooling in Superwinds. III. Non-equil…

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X-rays/EUV radiation emitted from wind-embedded shocks in hot, massive stars can affect the ionization balance in their outer atmospheres, and can be the mechanism responsible for the production of highly ionized species. To allow for these…

Solar and Stellar Astrophysics · Physics 2016-05-18 Luiz P. Carneiro , J. Puls , J. O. Sundqvist , T. L. Hoffmann

Close-in hot Jupiters are exposed to a tremendous photon flux that ionizes the neutral escaping material from the planet leaving an observable imprint that makes them an interesting laboratory for testing theoretical models. In this work we…

Earth and Planetary Astrophysics · Physics 2016-02-17 E. M. Schneiter , A. Esquivel , C. S. Villarreal D'Angelo , P. F. Velazquez , A. C. Raga , A. Costa

The ISM, powered by SNe, is turbulent and permeated by a magnetic field (with a mean and a turbulent component). It constitutes a frothy medium that is mostly out of equilibrium and is ram pressure dominated on most of the temperature…

Astrophysics of Galaxies · Physics 2010-10-28 Miguel A. de Avillez , Dieter Breitschwerdt

The James Webb Space Telescope has ushered in an era of abundant high-redshift observations of young stellar populations characterized by strong emission lines, motivating us to integrate nebular emission into the new Maraston stellar…

The dynamics of the wind-wind collision in massive stellar binaries is investigated using three-dimensional hydrodynamical models which incorporate gravity, the driving of the winds, the orbital motion of the stars, and radiative cooling of…

Solar and Stellar Astrophysics · Physics 2015-05-13 J. M. Pittard

In this work we are interested to study the by-products of SNR-clouds in a starburst (SB) system. These interactions can have an important role in the recycling of matter from the clouds to the ISM and vice-versa. In the present work, we…

Astrophysics · Physics 2009-11-10 C. Melioli , E. M. de Gouveia Dal Pino , A. Raga

We develop a general method for the self consistent calculation of the hydrodynamics of an astrophysical object irradiated by a radiation field with an arbitrary strength and spectral energy distribution (SED). Using the XSTAR…

High Energy Astrophysical Phenomena · Physics 2017-03-22 Sergei Dyda , Randall Dannen , Tim Waters , Daniel Proga

Time-dependent cooling processes are of paramount importance in the evolution of astrophysical gaseous nebulae and, in particular, when radiative shocks are present. The present work introduces a necessary set of tools that can be used to…

Astrophysics · Physics 2008-08-20 O. Tesileanu , A. Mignone , S. Massaglia

Non-ideal MHD effects are thought to be a crucial component of the star-formation process. Numerically, several complications render the study of non-ideal MHD effects in 3D simulations extremely challenging and hinder our efforts of…

Astrophysics of Galaxies · Physics 2025-02-12 E. Agianoglou , A. Tritsis , K. Tassis

Solar flares involve complex processes that are coupled and span a wide range of temporal, spatial, and energy scales. Modeling such processes self-consistently has been a challenge in the past. Here we present results from simulations that…

Solar and Stellar Astrophysics · Physics 2015-11-18 Fatima Rubio da Costa , Wei Liu , Vahe' Petrosian , Mats Carlsson

The inverse-Compton effect (IC) is a widely recognized cooling mechanism for both relativistic and thermal electrons in various astrophysical environments, including the intergalactic medium and X-ray emitting plasmas. Its effect on thermal…

High Energy Astrophysical Phenomena · Physics 2023-10-17 Jonathan Mackey , Thomas A. K. Jones , Robert Brose , Luca Grassitelli , Brian Reville , Arun Mathew

We consider a model of the circumgalactic medium (CGM) in which feedback maintains a constant ratio of cooling time to freefall time throughout the halo, so that the entire CGM is marginally unstable to multiphase condensation. This…

Astrophysics of Galaxies · Physics 2021-09-15 Manami Roy , Biman B. Nath , G. M. Voit

We present a series of hydrodynamic simulations of isolated galaxies with stellar mass of $10^{9} \, \rm{M}_{\odot}$. The models use a resolution of $750 \, \rm{M}_{\odot}$ per particle and include a treatment for the full non-equilibrium…

Astrophysics of Galaxies · Physics 2016-02-17 Alexander J. Richings , Joop Schaye

We have developed an accurate, one-dimensional, spherically symmetric, Lagrangian hydrodynamics/gravity code, designed to study the effects of radiative cooling and photo-ionization on the formation of protogalaxies. We examine the ability…

Astrophysics · Physics 2009-10-22 A. A. Thoul

The role of different stellar feedback mechanisms in giant molecular clouds is not well understood. This is especially true for regions with many interacting clouds as would be found in a galactic spiral arm. In this paper, building on…

Astrophysics of Galaxies · Physics 2022-01-13 Ahmad A. Ali , Thomas J. R. Bending , Clare L. Dobbs

The Durham GALFORM semi-analytical galaxy formation model has been shown to reproduce the observed rest-frame 1500\AA\ luminosity function of galaxies well over the whole redshift range z=5-10. We show that in this model, this galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Milan Raičević , Tom Theuns , Cedric Lacey

By using a novel interface between the modern smoothed particle hydrodynamics code GASOLINE2 and the chemistry package KROME, we follow the hydrodynamical and chemical evolution of an isolated galaxy. In order to assess the relevance of…

Astrophysics of Galaxies · Physics 2018-01-24 Pedro R. Capelo , Stefano Bovino , Alessandro Lupi , Dominik R. G. Schleicher , Tommaso Grassi

We present high resolution simulations on the impact of ionizing radiation of massive O-stars on the surrounding turbulent interstellar medium (ISM). The simulations are performed with the newly developed software iVINE which combines…

Solar and Stellar Astrophysics · Physics 2009-11-13 Matthias Gritschneder , Thorsten Naab , Stefanie Walch , Andreas Burkert , Fabian Heitsch

Investigating the reliability of the assumption of instantaneous chemical equilibrium (ICE) for calculating the CO number density in the solar atmosphere is of crucial importance for the resolution of the long-standing controversy over the…

Astrophysics · Physics 2009-11-07 A. Asensio Ramos , J. Trujillo Bueno , M. Carlsson , J. Cernicharo

The increasing neutrality of the intergalactic medium at z>6 suppresses Ly-alpha emission, and spectroscopic confirmation of galaxy redshifts requires detecting alternative UV lines. The strong [C III] 1907 + C III] 1909 doublet frequently…

Astrophysics of Galaxies · Physics 2016-12-21 Anne Jaskot , Swara Ravindranath
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