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Related papers: Massive Interacting Binaries Enhance Feedback in S…

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Observations of young multiple star systems find a bimodal distribution in companion frequency and separation. The origin of these peaks has often been attributed to binary formation via core and disc fragmentation. However, theory and…

Astrophysics of Galaxies · Physics 2023-06-21 R. Kuruwita , T. Haugbølle

There is mounting evidence for the coevolution of galaxies and their embedded massive black holes (MBHs) in a hierarchical structure formation paradigm. To tackle the nonlinear processes of galaxy-MBH interaction, we describe a…

Astrophysics of Galaxies · Physics 2018-03-12 Ji-hoon Kim , John H. Wise , Marcelo A. Alvarez , Tom Abel

We analyze the dynamical evolution of binary stars that interact with a static background of single stars in the environment of a massive black hole (MBH). All stars are considered to be single mass, Newtonian point particles. We follow the…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-03 Clovis Hopman

Mass-loss and radiation feedback from evolving massive stars produce galactic-scale superwinds, sometimes surrounded by pressure-driven bubbles. Using the time-dependent stellar population typically seen in star-forming regions, we conduct…

Astrophysics of Galaxies · Physics 2024-06-27 A. Danehkar , M. S. Oey , W. J. Gray

Binary stars are thought to be a controlling factor in globular cluster evolution, since they can heat the environmental stars by converting their binding energy to kinetic energy during dynamical interactions. Through such interaction, the…

Astrophysics of Galaxies · Physics 2013-04-29 Jun Ji , Joel N. Bregman

We present a suite of binary evolution models with massive primaries (10 $\leq$ M$_1$ $\leq$ 40 M$_\odot$) and periods and mass ratios chosen such that the systems undergo non-conservative mass transfer while the primaries have helium…

Solar and Stellar Astrophysics · Physics 2024-05-10 Michelle Nguyen , Alison Sills

Pulsars are neutron stars that rotate rapidly. Most of the pulsars in binary systems tend to spin faster than those in isolation. According to binary evolution theory, radio pulsars in binary systems can have various types of companion…

High Energy Astrophysical Phenomena · Physics 2024-10-02 Shunyi Lan , Xiangcun Meng

We present a suite of galaxy formation simulations that directly model star cluster formation and disruption. Starting from a model previously developed by our group, here we introduce several improvements to the prescriptions for cluster…

Astrophysics of Galaxies · Physics 2022-05-04 Gillen Brown , Oleg Y. Gnedin

We present numerical models of the nebular emission from H II regions around young stellar populations over a range of compositions and ages. The synthetic stellar pop- ulations include both single stars and interacting binary stars. We…

Astrophysics of Galaxies · Physics 2018-03-28 Lin Xiao , Elizabeth Stanway , J. J. Eldridge

Star clusters host the massive stars responsible for feedback in star-forming galaxies. Stellar feedback shapes the interstellar medium (ISM), affecting the formation of future star clusters. To self-consistently capture the interplay…

Massive stars play a major role in the evolution of their host galaxies, and serve as important probes of the distant Universe. It has been established that the majority of massive stars reside in close binaries and will interact with their…

Solar and Stellar Astrophysics · Physics 2023-11-06 Pablo Marchant , Julia Bodensteiner

Stellar feedback influences the star formation rate (SFR) and the interstellar medium of galaxies in ways that are difficult to quantify numerically, because feedback is an essential ingredient of realistic simulations. To overcome this, we…

Context: Field stars are not always single stars, but can often be found in bound double systems. Since binary frequencies in the birth places of stars, young embedded clusters, are sometimes even higher than on average the question arises…

Astrophysics of Galaxies · Physics 2015-05-27 Thomas Kaczmarek , Christoph Olczak , Susanne Pfalzner

We compare the three-dimensional gas temperature distributions obtained by a dedicated radiative transfer and photoionisation code, MOCASSIN, against those obtained by the recently-developed Smooth Particle Hydrodynamics (SPH) plus…

Astrophysics of Galaxies · Physics 2015-05-20 Barbara Ercolano , Matthias Gritschneder

We characterize the infall rate onto protostellar systems forming in self-gravitating radiation-hydrodynamic simulations. Using two dimensionless parameters to determine disks' susceptability to gravitational fragmentation, we infer limits…

Solar and Stellar Astrophysics · Physics 2015-05-20 S. S. R. Offner , K. M. Kratter , C. D. Matzner , M. R. Krumholz , R. I. Klein

We aim at addressing the questions related to galaxy mass assembly through major and minor wet merging processes in the redshift range 1<z<2. A consequent fraction of Milky Way like galaxies are thought to have undergone an unstable clumpy…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 V. Perret , F. Renaud , B. Epinat , P. Amram , F. Bournaud , T. Contini , R. Teyssier , J. -C. Lambert

We present the results of a study aimed at investigating the effects of dynamical evolution on the spatial distribution and mixing of primordial binary stars in multiple-population globular clusters. Multiple stellar population formation…

Astrophysics of Galaxies · Physics 2018-12-05 Jongsuk Hong , Saahil Patel , Enrico Vesperini , Jeremy J. Webb , Emanuele Dalessandro

The fragmentation of star-forming interstellar clouds, and the resulting stellar initial mass function (IMF), is strongly affected by the temperature structure of the collapsing gas. Since radiation feedback from embedded stars can modify…

Astrophysics of Galaxies · Physics 2015-05-14 Mark R. Krumholz , Andrew J. Cunningham , Richard I. Klein , Christopher F. McKee

Stellar feedback -- stars regulating further star formation through the injection of energy and momentum into the interstellar medium -- operates through a complex set of processes that originate in star clusters but shape entire galaxies.…

The formation histories of compact binary mergers, especially stellar-mass binary-black hole mergers, have recently come under increased scrutiny and revision. In this paper we revisit the question of the dominant formation channel and…

High Energy Astrophysical Phenomena · Physics 2023-08-28 Monica Gallegos-Garcia , Christopher P L Berry , Vicky Kalogera
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