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Triple stellar systems, consisting of three gravitationally bound stars, play a fundamental role in a wide array of astrophysical processes, from stellar evolution to the formation of exotic objects and gravitational wave sources. This…

Solar and Stellar Astrophysics · Physics 2025-08-26 Hagai B. Perets

We present and discuss evolutionary synthesis models for massive stellar populations generated with the Starburst99 code in combination with a new set of stellar evolution models accounting for rotation. The new stellar evolution models…

Stellar physics and evolution calculations enable a broad range of research in astrophysics. Modules for Experiments in Stellar Astrophysics (MESA) is a suite of open source libraries for a wide range of applications in computational…

Solar and Stellar Astrophysics · Physics 2010-12-17 Bill Paxton , Lars Bildsten , Aaron Dotter , Falk Herwig , Pierre Lesaffre , Frank Timmes

We present a new stellar evolution code and a set of results, demonstrating its capability at calculating full evolutionary tracks for a wide range of masses and metallicities. The code is fast and efficient, and is capable of following…

Astrophysics · Physics 2009-11-13 Attay Kovetz , Ofer Yaron , Dina Prialnik

In stellar astrophysics, the technique of population synthesis has been successfully used for several decades. For planets, it is in contrast still a young method which only became important in recent years because of the rapid increase of…

Earth and Planetary Astrophysics · Physics 2018-12-05 Christoph Mordasini

The development of evolutionary stellar population models is central to interpreting observations of galaxies in terms of astrophysical quantities. Stellar population models must therefore be both accurate and compatible with inversion…

We developed a new population synthesis code for groups of massive stars, where we model the emission of different forms of energy and matter from the stars of the association. In particular, the ejection of the two radioactive isotopes…

Astrophysics of Galaxies · Physics 2015-05-13 R. Voss , R. Diehl , D. H. Hartmann , M. Cervino , J. S. Vink , G. Meynet , M. Limongi , A. Chieffi

We first give a short historical overview with some key facts of massive star population synthesis with binaries. We then discuss binary population codes and focus on two ingredients which are important for massive star population synthesis…

Solar and Stellar Astrophysics · Physics 2015-08-19 D. Vanbeveren , N. Mennekens

Modeling of large populations of binary stellar systems is an intergral part of a many areas of astrophysics, from radio pulsars and supernovae to X-ray binaries, gamma-ray bursts, and gravitational-wave mergers. Binary population synthesis…

Rapid binary population synthesis codes are often used to investigate the evolution of compact-object binaries. They typically rely on analytical fits of single-star evolutionary tracks and parameterized models for interactive phases of…

High Energy Astrophysical Phenomena · Physics 2021-12-08 Monica Gallegos-Garcia , Christopher P L Berry , Pablo Marchant , Vicky Kalogera

We present a rapid binary evolution algorithm that enables modelling of even the most complex binary systems. In addition to all aspects of single star evolution, features such as mass transfer, mass accretion, common-envelope evolution,…

Astrophysics · Physics 2009-11-07 Jarrod R. Hurley , Christopher A. Tout , Onno R. Pols

We present a comprehensive description of the population synthesis code StarTrack. The original code has been significantly modified and updated. Special emphasis is placed here on processes leading to the formation and further evolution of…

Astrophysics · Physics 2009-11-11 K. Belczynski , V. Kalogera , F. A. Rasio , R. E. Taam , A. Zezas , T. Bulik , T. J. Maccarone , N. Ivanova

Most back hole and neutron star progenitors are found in triples or higher multiplicity systems. Here, we present a new triple stellar evolution code, ${\tt TSE}$, which simultaneously takes into account the physics of the stars and their…

Solar and Stellar Astrophysics · Physics 2022-10-11 Jakob Stegmann , Fabio Antonini , Maxwell Moe

We summarize the main results from MODEST-1, the first workshop on MOdeling DEnse STellar systems. Our goal is to go beyond traditional population synthesis models, by introducing dynamical interactions between single stars, binaries, and…

Gravitational-wave observations have just started probing the properties of black hole binary merger populations. The observation of binaries with very massive black holes and significantly asymmetric masses motivates the study of dense…

High Energy Astrophysical Phenomena · Physics 2024-08-20 Konstantinos Kritos , Vladimir Strokov , Vishal Baibhav , Emanuele Berti

I present StarEstate, an open-source Python package for producing rapid, statistically robust galactic population synthesis models. By utilizing optimized pre-calculated inverse-cumulative distribution function samplers, the tool generates…

Instrumentation and Methods for Astrophysics · Physics 2025-11-27 Amedeo Romagnolo

Statistics of hierarchical systems containing three or more stars are continuously improving. The Multiple Star Catalog (MSC) is currently the most comprehensive catalogue of multiple-star systems and contains component masses, orbital…

Solar and Stellar Astrophysics · Physics 2020-05-06 Adrian S. Hamers

The simulation of gravitational wave source populations and their progenitors is an endeavor more than eighty years in the making. This is in part due to a wide variety of theoretical uncertainties that must be taken into account when…

High Energy Astrophysical Phenomena · Physics 2025-08-14 Katelyn Breivik

Many stars do not live alone, but instead have one or more stellar companions. Observations show that these binaries, triples and higher-order multiples are common. Whereas the evolution of single stars and binaries have been studied…

Solar and Stellar Astrophysics · Physics 2020-08-12 S. Toonen , S. Portegies Zwart , A. Hamers , D. Bandopadhyay

The modelling of massive star evolution is a complex task, and is very sensitive to the way physical processes (such as convection, rotation, mass loss, etc.) are included in stellar evolution code. Moreover, the very high observed fraction…

Solar and Stellar Astrophysics · Physics 2016-12-19 Cyril Georgy , Raphael Hirschi , Sylvia Ekström