Chemically homogeneous evolution: a rapid population synthesis approach
@article{Riley2020ChemicallyHE, title={Chemically homogeneous evolution: a rapid population synthesis approach}, author={Jeff Riley and Ilya Mandel and Pablo Marchant and Ellen Butler and K. Nathaniel and Coenraad J. Neijssel and Spencer Shortt and Alejandro Vigna-G{\'o}mez}, journal={Monthly Notices of the Royal Astronomical Society}, year={2020}, volume={505}, pages={663-676} }
We explore chemically homogeneous evolution (CHE) as a formation channel for massive merging binary black holes (BBHs). We develop methods to include CHE in a rapid binary population synthesis code, Compact Object Mergers: Population Astrophysics and Statistics (compas), which combines realistic models of binary evolution with cosmological models of the star formation history of the Universe. For the first time, we simultaneously explore conventional isolated binary star evolution under the…
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References
SHOWING 1-10 OF 85 REFERENCES
The chemically homogeneous evolutionary channel for binary black hole mergers: rates and properties of gravitational-wave events detectable by advanced LIGO
- Physics
- 2016
We explore the predictions for detectable gravitational-wave signals from merging binary black holes formed through chemically homogeneous evolution in massive short-period stellar binaries. We find…
Binary Black Hole Population Properties Inferred from the First and Second Observing Runs of Advanced LIGO and Advanced Virgo
- PhysicsThe Astrophysical Journal
- 2019
We present results on the mass, spin, and redshift distributions with phenomenological population models using the 10 binary black hole (BBH) mergers detected in the first and second observing runs…
Normal and abnormal binary frequencies
- Physics
- 1983
It is becoming apparent that most normal main-sequence stars are members of both short-period and long-period systems. Let us cite some evidence. Petrie ( 1960) showed from a sample of 1752 stars…
On the variation of the initial mass function
- Physics
- 2001
A universal initial mass function (IMF) is not intuitive, but so far no convincing evidence for a variable IMF exists. The detection of systematic variations of the IMF with star-forming conditions…
Publications of the Tartu Astrofizica Observatory
- 1924
The impact of stellar rotation on the black hole mass-gap from pair-instability supernovae
- PhysicsAstronomy & Astrophysics
- 2020
Models of pair-instability supernovae (PISNe) predict a gap in black hole (BH) masses between ∼45 M⊙ and 120 M⊙, which is referred to as the upper BH mass-gap. With the advent of gravitational-wave…
Mind the Gap: The Location of the Lower Edge of the Pair-instability Supernova Black Hole Mass Gap
- PhysicsThe Astrophysical Journal
- 2019
Detections of gravitational waves are now starting to probe the mass distribution of stellar mass black holes (BHs). Robust predictions from stellar models are needed to interpret these. Theory…
The Wolf-Rayet binaries of the nitrogen sequence in the Large Magellanic Cloud
- PhysicsAstronomy & Astrophysics
- 2020
Context. Massive Wolf–Rayet (WR) stars dominate the radiative and mechanical energy budget of galaxies and probe a critical phase in the evolution of massive stars prior to core collapse. It is not…