Gravitational instabilities in circumstellar disks

K Kratter, G Lodato - Annual Review of Astronomy and …, 2016 - annualreviews.org
Star and planet formation are the complex outcomes of gravitational collapse and angular
momentum transport mediated by protostellar and protoplanetary disks. In this review, we …

New insights into the evolution of massive stars and their effects on our understanding of early galaxies

JJ Eldridge, ER Stanway - Annual Review of Astronomy and …, 2022 - annualreviews.org
The observable characteristics and subsequent evolution of young stellar populations is
dominated by their massive stars. As our understanding of those massive stars and the …

Mind your Ps and Qs: the interrelation between period (P) and mass-ratio (Q) distributions of binary stars

M Moe, R Di Stefano - The Astrophysical Journal Supplement …, 2017 - iopscience.iop.org
We compile observations of early-type binaries identified via spectroscopy, eclipses, long-
baseline interferometry, adaptive optics, common proper motion, etc. Each observational …

One channel to rule them all? Constraining the origins of binary black holes using multiple formation pathways

M Zevin, SS Bavera, CPL Berry… - The Astrophysical …, 2021 - iopscience.iop.org
The second LIGO–Virgo catalog of gravitational-wave (GW) transients has more than
quadrupled the observational sample of binary black holes. We analyze this catalog using a …

Binary population and spectral synthesis version 2.1: construction, observational verification, and new results

JJ Eldridge, ER Stanway, L **ao… - Publications of the …, 2017 - cambridge.org
The Binary Population and Spectral Synthesis suite of binary stellar evolution models and
synthetic stellar populations provides a framework for the physically motivated analysis of …

A sun-like star orbiting a black hole

K El-Badry, HW Rix, E Quataert… - Monthly Notices of …, 2023 - academic.oup.com
We report discovery of a bright, nearby () Sun-like star orbiting a dark object. We identified
the system as a black hole candidate via its astrometric orbital solution from the Gaia …

A highly magnified star at redshift 6.2

B Welch, D Coe, JM Diego, A Zitrin, E Zackrisson… - Nature, 2022 - nature.com
Galaxy clusters magnify background objects through strong gravitational lensing. Typical
magnifications for lensed galaxies are factors of a few but can also be as high as tens or …

Merging binary black holes formed through chemically homogeneous evolution in short-period stellar binaries

I Mandel, SE De Mink - Monthly Notices of the Royal …, 2016 - academic.oup.com
We explore a newly proposed channel to create binary black holes of stellar origin. This
scenario applies to massive, tight binaries where mixing induced by rotation and tides …

Properties and Astrophysical Implications of the 150 M o˙ Binary Black Hole Merger GW190521

LIGO Scientific Collaboration… - Astrophysical …, 2020 - researchoutput.csu.edu.au
The gravitational-wave signal GW190521 is consistent with a binary black hole (BBH)
merger source at redshift 0.8 with unusually high component masses, 85-14+ 21 M o and 66 …