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We estimate the observed distribution of chirp masses of compact object binaries for the gravitational wave detectors. The stellar binary evolution is modeled using the {\em StarTrack} population synthesis code. The distribution of the…

Astrophysics · Physics 2009-11-07 T. Bulik , K. Belczynski

We discuss some aspects of stellar evolution in binary systems. While single stars can swell following the chemical evolution of their interior, stars belonging to binary systems cannot overflow the size of the Roche lobe and hydrostatic…

Solar and Stellar Astrophysics · Physics 2025-12-12 O. G. Benvenuto , M. A. De Vito , L. Bartolomeo Koninckx , M. Echeveste , M. L. Novarino , J. E. Horvath

A growing number of close binary stars are being discovered among central stars of planetary nebulae. Recent and ongoing surveys are finding new systems and contributing to our knowledge of the evolution of close binary systems. The push to…

Solar and Stellar Astrophysics · Physics 2015-07-15 Todd C. Hillwig , David J. Frew , Melissa Louie , Orsola De Marco , Howard E. Bond , David Jones , S. C. Schaub

A survey of currently known planet-hosting stars indicates that approximately 25% of extrasolar planetary systems are within dual-star environments. Several of these systems contain stellar companions on moderately close orbits, implying…

Earth and Planetary Astrophysics · Physics 2009-08-25 Nader Haghighipour

Moderately close binaries are a special class of targets for planet searches. From a theoretical standpoint, their hospitality to giant planets is uncertain and debated. From an observational standpoint, many of these systems present…

Earth and Planetary Astrophysics · Physics 2015-05-14 A. Eggenberger

Various scenarios of contact binary evolution have been proposed in the past, giving hints of (sometimes contradictory) evolutionary sequence connecting A-type and W-type systems. As the components of close detached binaries approach each…

Astrophysics · Physics 2009-11-13 K. Gazeas , K. Stepien

A new method is presented to describe the evolution of the orbital-parameter distributions for an initially universal binary population in star clusters by means of the currently largest existing library of N-body models. It is demonstrated…

Astrophysics of Galaxies · Physics 2015-05-28 Michael Marks , Pavel Kroupa , Seungkyung Oh

We have performed detailed numerical calculations of the non-conservative evolution of close binary systems with low-mass (1.0-2.0 M_sun) donor stars and a 1.3 M_sun accreting neutron star. Rather than using analytical expressions for…

Astrophysics · Physics 2007-05-23 T. M. Tauris , G. J. Savonije

We compare the evolution of binary systems evolved in the MESA stellar evolution code to those in the COSMIC population synthesis code. Our aim is to convey the robustness of the equations that model binary evolution in the COSMIC code,…

High Energy Astrophysical Phenomena · Physics 2023-05-24 Lailani Kenoly , A. Ken Luu , Celia Toral , Roseanne M. Cheng , Nicole M. Lloyd-Ronning , Shane L. Larson , Gabriel O. Casabona

We report on the properties of eclipsing binaries from the Kepler mission with a newly developed photometric modeling code, which uses the light curve, spectral energy distribution of each binary, and stellar evolution models to infer…

Solar and Stellar Astrophysics · Physics 2019-08-14 Diana Windemuth , Eric Agol , Aleezah Ali , Flavien Kiefer

We present a WWW-version of the {\it Scenario Machine} - a computer code designed to calculate the evolution of close binary stellar systems. The Internet users can directly access to the code and calculate binary evolutionary tracks with…

Astrophysics · Physics 2016-08-30 S. N. Nazin , V. M. Lipunov , I. E. Panchenko , K. A. Postnov , M. E. Prokhorov , S. B. Popov

Using the StarTrack population synthesis code we compute the distribution of masses of merging compact object (black hole or neutron star) binaries. The shape of the mass distribution is sensitive to some of the parameters governing the…

Astrophysics · Physics 2009-11-07 T. Bulik , K. Belczynski , V. Kalogera

The structure and evolution of close binary stars has been studied using the two-dimensional (2D) stellar structure algorithm developed by Deupree (1995). We have calculated a series of solar composition stellar evolution sequences of…

Astrophysics · Physics 2009-11-13 R. G. Deupree , A. I. Karakas

The evolution of neutron stars in close binary systems with a low-mass companion is considered assuming the magnetic field to be confined within the solid crust. We adopt the standard scenario of the evolution in a close binary system in…

Astrophysics · Physics 2009-10-30 V. Urpin , U. Geppert , D. Konenkov

We elaborate on the analytical model of Ritter, Zhang, and Kolb (2000, A&A 360, 959) which describes the basic physics of irradiation-driven mass transfer cycles in semi-detached compact binary systems. In particular, we take into account a…

Astrophysics · Physics 2007-05-23 Andreas Buening , Hans Ritter

The frequency of multiple systems and their properties are key constraints of stellar formation and evolution. Formation mechanisms of very low-mass (VLM) objects are still under considerable debate and an accurate assessment of their…

Solar and Stellar Astrophysics · Physics 2017-02-01 M. C. Galvez-Ortiz , E. Solano , N. Lodieu , M. Aberasturi

Satellites of asteroids have been discovered in nearly every known small body population, and a remarkable aspect of the known satellites is the diversity of their properties. They tell a story of vast differences in formation and evolution…

Earth and Planetary Astrophysics · Physics 2016-08-31 Kevin J. Walsh , Seth A. Jacobson

Close white dwarf binaries play an important role across a range of astrophysics, including thermonuclear supernovae, the Galactic low-frequency gravitational wave signal, and the chemical evolution of the Galaxy. Progress in developing a…

Solar and Stellar Astrophysics · Physics 2021-05-13 K. Inight , B. T. Gaensicke , E. Breedt , T. R. Marsh , A. F. Pala , R. Raddi

Finite eccentricities in mass-transferring eccentric binary systems can be explained by taking into account mass-loss and mass-transfer processes that often occur in these systems. These processes can be treated as perturbations to the…

Solar and Stellar Astrophysics · Physics 2016-07-06 Fani Dosopoulou , Vicky Kalogera

The study of very short-period contact binaries provides an important laboratory in which the most important and problematic astrophysical processes of stellar evolution take place. Short-period contact systems, such as CC Com are…

Solar and Stellar Astrophysics · Physics 2024-11-20 Dolunay Koçak