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Related papers: Formation of massive close binaries I. Detached ev…

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We perform numerical simulations to investigate high-power wind accretion in massive binary systems undergoing enhanced mass-loss episodes. The primary star is taken in the mass range $M_{1} = 60$--$90\,\mathrm{M_{\odot}}$, while the…

Solar and Stellar Astrophysics · Physics 2026-03-04 Bhawna Mukhija , Amit Kashi

Millisecond pulsars (MSPs) are laboratories for stellar evolution, strong gravity, and ultra-dense matter. Although MSPs are thought to originate in low-mass X-ray binaries (LMXBs), approximately 27% lack a binary companion, and others are…

High Energy Astrophysical Phenomena · Physics 2025-03-12 S. Chanlaridis , D. Ohse , D. E. Alvarez-Castillo , J. Antoniadis , D. Blaschke , V. Danchev , N. Langer , D. Misra

We present a systematic study of the evolution of intermediate- and low-mass X-ray binaries consisting of an accreting neutron star of mass $1.0-1.8 M_{\odot}$ and a donor star of mass $1.0-6.0 M_{\odot}$. In our calculations we take into…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Yong Shao , Xiang-Dong Li

We considered the formation of detached white dwarf main-sequence star (WDMS) binaries through seven evolutionary channels subdivided according to the evolutionary process that gives rise to the formation of the white dwarf or its…

Astrophysics · Physics 2009-11-10 B. Willems , U. Kolb

The white dwarf mass distribution has been studied primarily at two extremes: objects that presumably evolved as single stars and members of close binaries that likely underwent substantial interaction. This work considers the intermediate…

Solar and Stellar Astrophysics · Physics 2025-01-17 Sahar Shahaf

Orbital angular momentum (Jo), systemic mass (M) and orbital period (P) distributions of chromospherically active binaries (CAB) and W Ursae Majoris (W UMa) systems were investigated. The diagrams of log Jo - log P, log M - log P and log…

Astrophysics · Physics 2009-11-11 Z. Eker , O. Demircan , S. Bilir , Y. Karatas

While it is well known that mass transfer in binaries can pollute the surfaces of the accretors, it is still unclear whether this mechanism can reproduce the observed chemical inhomogeneities in globular clusters. We study the surface…

Solar and Stellar Astrophysics · Physics 2020-03-11 Dandan Wei , Bo Wang , Xuefei Chen , Hailiang Chen , Lifang Li , Dengkai Jiang

The complexity of composite spectra of close binary star system makes study of the spectra of their component stars extremely difficult. For this reason there exists very little information on the photospheric chemical composition of stars…

Solar and Stellar Astrophysics · Physics 2014-03-05 K. Pavlovski , J. Southworth

According to the sequential accretion model, giant planet formation is based first on the formation of a solid core which, when massive enough, can gravitationally bind gas from the nebula to form the envelope. In order to trigger the…

Earth and Planetary Astrophysics · Physics 2015-06-11 A. Fortier , Y. Alibert , F. Carron , W. Benz , K. -M. Dittkrist

Population inference of gravitational-wave catalogues is a useful tool to translate observations of black-hole mergers into constraints on compact-binary formation. Different formation channels predict identifiable signatures in the…

High Energy Astrophysical Phenomena · Physics 2022-10-20 Matthew Mould , Davide Gerosa , Floor S. Broekgaarden , Nathan Steinle

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

A large fraction of stars are in binary systems, yet the evolution of proto-planetary discs in binaries has been little explored from the theoretical side. In this paper we investigate the evolution of the discs surrounding the primary and…

Earth and Planetary Astrophysics · Physics 2017-12-20 Giovanni P. Rosotti , Cathie J. Clarke

We discuss the first available binary evolution models which include up-to-date rotational physics for both components, as well as angular momentum accretion and spin-orbit coupling. These models allow a self-consistent computation of the…

Astrophysics · Physics 2007-05-23 N. Langer , S. -C. Yoon , J. Petrovic , A. Heger

Star clusters are the building blocks of galaxies. They are composed of stars of nearly equal age and chemical composition, allowing us to use them as chronometers and as testbeds for gauging stellar evolution. It has become clear recently…

Solar and Stellar Astrophysics · Physics 2020-01-08 Chen Wang , Norbert Langer , Abel Schootemeijer , Norberto Castro , Sylvia Adscheid , Pablo Marchant , Ben Hastings

Solar-type binaries with short orbital periods ($P_{\rm close}$ $\equiv$ 1 - 10 days; $a$ $\lesssim$ 0.1 AU) cannot form directly via fragmentation of molecular clouds or protostellar disks, yet their component masses are highly correlated,…

Solar and Stellar Astrophysics · Physics 2018-02-21 Maxwell Moe , Kaitlin M. Kratter

The formation of planets depends on the underlying protoplanetary disc structure, which influences both the accretion and migration rates of embedded planets. The disc itself evolves on time-scales of several Myr during which both…

Earth and Planetary Astrophysics · Physics 2018-02-07 Bertram Bitsch , Michiel Lambrechts , Anders Johansen

The LIGO and Virgo gravitational-wave detectors have uncovered binary black hole systems with definitively nonzero spins, as well as systems with significant spin residing in the more massive black hole of the pair. We investigate the…

High Energy Astrophysical Phenomena · Physics 2022-07-12 Michael Zevin , Simone S. Bavera

The evolution of binaries consisting of evolved main sequence stars (1 < M_d/Msun < 3.5) with white dwarf companions (0.7 < M_wd/Msun < 1.2) is investigated through the thermal mass transfer phase. Taking into account the stabilizing effect…

Astrophysics · Physics 2016-08-30 Natalia Ivanova , Ronald E. Taam

In isolated binary evolution, binary black hole (BBH) mergers are generally formed through stable mass transfer (SMT) or common envelope evolution. In recent years, the SMT channel has received significant attention due to detailed binary…

W UMa type binaries have two defining characteristics. These are (i) the effective temperatures of both components are very similar, and (ii) the secondary (currently less massive) component is overluminous for its current mass. We consider…

Solar and Stellar Astrophysics · Physics 2015-06-12 Mutlu Yildiz , Tuncay Dogan