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Using fully three-dimensional hydrodynamic simulations, we investigate the effect of the Coriolis force on the hydrodynamic and observable properties of colliding wind binary systems. To make the calculations tractable, we assume adiabatic,…

Astrophysics · Physics 2011-02-11 M. Nicole Lemaster , James M. Stone , Thomas A. Gardiner

The cumulative effect of the magnetized stellar winds on exoplanets dominates over other forms of star-planet interactions. When combined with photoevaporation, these winds will lead to atmospheric erosion. This is directly connected with…

Solar and Stellar Astrophysics · Physics 2021-11-19 Judy J. Chebly , Julián D. Alvarado-Gómez , Katja Poppenhaeger

The stellar mass-luminosity relation is poorly constrained by observations for high mass stars. We describe our program to find eclipsing massive binaries in the Magellanic Clouds using photometry of regions rich in massive stars, and our…

Solar and Stellar Astrophysics · Physics 2015-06-03 Philip Massey , Nidia I. Morrell , Kathryn F. Neugent , Laura R. Penny , Kathleen-DeGioia Eastwood , Douglas R. Gies

Stellar winds are a major source of uncertainty in understanding the life and deaths of massive stars. Across studies in the field, prescriptions for stellar winds differ substantially in both their physical assumptions and implementation,…

Solar and Stellar Astrophysics · Physics 2026-01-06 Amedeo Romagnolo , Floor S. Broekgaarden , Konstantinos Antoniadis , Alex C. Gormaz-Matamala

In the past few decades detailed observations of radio and X-rays emission from massive binary systems revealed a whole new physics present in such systems. Both thermal and non-thermal components of this emission indicate that most of the…

High Energy Astrophysical Phenomena · Physics 2015-06-04 D. Falceta-Gonçalves , Z. Abraham

We calculate multicomponent radiatively driven stellar wind models suitable for central stars of planetary nebulae. Some of these stellar winds may be adequately modelled using one-component models, however for some of them multicomponent…

Astrophysics · Physics 2007-05-23 Jiri Krticka , Jiri Kubat

It has been proposed multiple times to use the neutron star (NS) in high-mass X-ray binaries (HMXBs) as an orbiting X-ray probe embedded in the wind-fed of its supergiant (SG) companion in order to constrain the stellar line-driven wind…

High Energy Astrophysical Phenomena · Physics 2023-03-01 Ali Taani

Massive star winds are complex radiation-hydrodynamic (sometimes magnetohydrodynamic) outflows that are propelled by their enormously strong luminosities. The winds are often found to be structured and variable, but can also display…

Solar and Stellar Astrophysics · Physics 2015-06-23 R. Ignace , N. St-Louis , F. Proulx-Giraldeau

Massive stars are the drivers of star formation and galactic dynamics due to their relatively short lives and explosive demises, thus impacting all of astrophysics. Since they are so impactful on their environments, through their winds on…

Solar and Stellar Astrophysics · Physics 2019-12-16 Kyle C. Augustson

WR 25 is a colliding-wind binary star system comprised of a very massive O2.5If*/WN6 primary and an O-star secondary in a 208-day period eccentric orbit. These hot stars have strong, highly-supersonic winds which interact to form a bright…

High Energy Astrophysical Phenomena · Physics 2021-03-10 Pragati Pradhan , David P. Huenemoerder , Richard Ignace , A. M. T Pollock , Joy S. Nichols

Most types of massive stars display X-ray emission that is affected by the properties of their stellar winds. Single non-magnetic OB stars have an X-ray luminosity that scales with their bolometric luminosity and their emission is thought…

Solar and Stellar Astrophysics · Physics 2023-04-05 Gregor Rauw

Symbiotic stars are long-period interacting binaries where the compact objects, most commonly a white dwarf, is embedded in the dense stellar wind of an evolved companion star. UV and soft X-ray emission of the accretion disk and nuclear…

Solar and Stellar Astrophysics · Physics 2021-08-25 Jere Kuuttila , Marat Gilfanov

OB stars exhibit various types of spectral variability associated with wind structures, including the apparently ubiquitous discrete absorption components (DACs). These are proposed to be caused by either magnetic fields or non-radial…

A substantial fraction of stars can be found in wide binaries with projected separations between $\sim10^2$ and $10^5\,\rm AU$. In the standard lore of binary physics, these would evolve as effectively single stars that remotely orbit one…

Dust production is one of the more curious phenomena observed in massive binary systems with interacting winds. The high temperatures, UV photon flux and violent shocks should destroy any dust grains that condense. However, in some extreme…

Solar and Stellar Astrophysics · Physics 2022-10-18 J. W. Eatson , J. M. Pittard , S. Van Loo

Measurements of stellar mass loss rates are used to assess how wind strength varies with coronal activity and age for solar-like stars. Mass loss generally increases with activity, but we find evidence that winds suddenly weaken at a…

Mass loss due to line-driven winds is central to our understanding of the evolution of massive stars. We extend the evolution models introduced in Paper I, where the mass loss recipe is based on the simultaneous calculation of the wind…

Solar and Stellar Astrophysics · Physics 2023-05-17 Alex Camilo Gormaz-Matamala , Jorge Cuadra , Georges Meynet , Michel Curé

Stellar magnetism, explorable via polarimetry, is a crucial driver of activity, ionization, photodissociation, chemistry and winds in stellar environments. Thus it has an important impact on the atmospheres and magnetospheres of surrounding…

Solar and Stellar Astrophysics · Physics 2015-06-22 T. Lüftinger , M. Güdel , C. P. Johnstone

Both stars and planets can lose mass through an expansive wind outflow, often constrained or channeled by magnetic fields that form a surrounding magnetosphere. The very strong winds of massive stars are understood to be driven by…

Solar and Stellar Astrophysics · Physics 2022-11-01 Stan Owocki

Gravitational-wave observations have the capability to strongly differentiate between different assumptions for how binary compact objects form. In this work, we show how to carefully interpolate a marginal likelihood between choices of…

General Relativity and Quantum Cosmology · Physics 2023-07-11 Vera Delfavero , Richard O'Shaughnessy , Krzysztof Belczynski , Paweł Drozda , Daniel Wysocki
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