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Binary systems containing a massive star and a non-accreting pulsar present strong interaction between the stellar and the pulsar winds. The properties of this interaction, which largely determine the non-thermal radiation in these systems,…

High Energy Astrophysical Phenomena · Physics 2015-02-16 Xavier Paredes-Fortuny , Valentí Bosch-Ramon , Manel Perucho , Marc Ribó

The effects of wind-driven star formation feedback on the spatio-temporal organization of stars and gas in galaxies is studied using two-dimensional intermediate-representational quasi-hydrodynamical simulations. The model retains only a…

Astrophysics · Physics 2009-10-31 David Chappell , John Scalo

Context. In binary star systems, the winds from the two components impact each other, leading to strong shocks and regions of enhanced density and temperature. Potentially habitable circumbinary planets must continually be exposed to these…

Solar and Stellar Astrophysics · Physics 2015-05-13 C. P. Johnstone , A. Zhilkin , E. Pilat-Lohinger , D. Bisikalo , M. Güdel , S. Eggl

We simulate the effects of massive star feedback, via winds and SNe, on inhomogeneous molecular material left over from the formation of a massive stellar cluster. We use 3D hydrodynamic models with a temperature dependent average particle…

Astrophysics of Galaxies · Physics 2012-09-25 Julian Pittard , Hazel Rogers

We present analytic and numerical models of a cluster wind flow resulting from the interaction of stellar winds of massive stars, with a super massive black hole (SMBH). We consider the motion of the stars as well as the gravitational force…

Astrophysics of Galaxies · Physics 2021-05-19 V. Lora , A. Raga , J. Canto , A. Esquivel

In a companion paper, we develop a theory for the evolution of stellar wind driven bubbles in dense, turbulent clouds. This theory proposes that turbulent mixing at a fractal bubble-shell interface leads to highly efficient cooling, in…

Astrophysics of Galaxies · Physics 2021-06-30 Lachlan Lancaster , Eve C. Ostriker , Jeong-Gyu Kim , Chang-Goo Kim

We present analytic and numerical models of the `cluster wind' resulting from the multiple interactions of the winds ejected by the stars of a dense cluster of massive stars. We consider the case in which the distribution of stars (i.e.,…

Astrophysics · Physics 2007-08-10 Ary Rodríguez-González , J. Cantó , A. Esquivel , A. C. Raga , P. F. Velazquez

Smoothed particle hydrodynamics (SPH) is used to estimate accretion rates of mass, linear and angular momentum in a binary system where one component undergoes mass loss through a wind. Physical parameters are chosen such as to model the…

Astrophysics · Physics 2015-06-24 Tom Theuns , Henri Boffin , Alain Jorissen

Hydrodynamic models for spherically-symmetric winds driven by young stellar clusters with a generalized Schuster stellar density profile are explored. For this we use both semi-analytic models and 1D numerical simulations. We determine the…

We have incorporated star formation algorithms into a hybrid N-body/smoothed particle hydrodynamics code (TREESPH) in order to describe the star forming properties of disk galaxies over timescales of a few billion years. The models employ a…

Astrophysics · Physics 2007-05-23 Chris Mihos , Lars Hernquist

We use 3D hydrodynamical models to investigate the effects of massive star feedback from winds and supernovae on inhomogeneous molecular material left over from the formation of a massive stellar cluster. We simulate the interaction of the…

Solar and Stellar Astrophysics · Physics 2015-06-15 H. Rogers , J. M. Pittard

Galactic superbubbles are triggered by stellar feedback in the discs of star-forming galaxies. They are important in launching galactic winds, which play a key role in regulating the mass and energy exchange in galaxies. Observations can…

Astrophysics of Galaxies · Physics 2024-07-17 Osmer Suárez-López , Andrés S. Villares , Wladimir E. Banda-Barragán

Winds are ubiquitous in galaxies and often feature bubble structures. These wind bubbles are characterized by an external forward shock expanding in the surrounding medium and a wind termination shock separating the cool and fast wind from…

High Energy Astrophysical Phenomena · Physics 2022-05-13 Enrico Peretti

Forming planets around young, fast-rotating solar-like stars are exposed to an intense X-ray/extreme ultraviolet radiation field and strongly magnetized stellar winds, as a consequence of the high magnetic activity of these stars. Under…

Earth and Planetary Astrophysics · Physics 2023-07-26 Ada Canet , Ana I. Gómez De Castro

Dense stellar winds may mass-load the jets of active galactic nuclei, although it is unclear what are the time and spatial scales in which the mixing takes place. We study the first steps of the interaction between jets and stellar winds,…

High Energy Astrophysical Phenomena · Physics 2017-11-01 Manel Perucho , Valentí Bosch-Ramon , Maxim V. Barkov

In the last decades, stellar atmosphere models have become a key tool in understanding massive stars. Applied for spectroscopic analysis, these models provide quantitative information on stellar wind properties as well as fundamental…

Solar and Stellar Astrophysics · Physics 2017-11-15 Andreas A. C. Sander

Our three-dimensional hydro-dynamical simulations of starbursts examine the formation of superbubbles over a range of driving luminosities and mass loadings that determine superbubble growth and wind velocity. From this we determine the…

Astrophysics of Galaxies · Physics 2016-08-19 Ryan Tanner , Gerald Cecil , Fabian Heitsch

We study colliding winds in the superluminous binary eta Carinae by performing three-dimensional, Smoothed Particle Hydrodynamics (SPH) simulations. For simplicity, we assume both winds to be isothermal. We also assume that wind particles…

Successful models of the low redshift circumgalactic medium (CGM) must account for (1) a large amount of gas, (2) relatively slow gas velocities, (3) a high degree of metal enrichment, (4) the similar absorption properties around both…

Astrophysics of Galaxies · Physics 2018-09-12 Cassandra Lochhaas , Todd A. Thompson , Eliot Quataert , David H. Weinberg

We study the evolution of Super Star Cluster (SSC) winds driven by stellar winds and supernova (SN) explosions. Time-dependent rates at which mass and energy are deposited into the cluster volume, as well as the time-dependent chemical…

Astrophysics of Galaxies · Physics 2015-05-28 Richard Wunsch , Sergiy Silich , Jan Palous , Guillermo Tenorio-Tagle , Casiana Munoz-Tunon