Jeff Riley
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View article: Rapid Stellar and Binary Population Synthesis with COMPAS: Methods Paper II
Rapid Stellar and Binary Population Synthesis with COMPAS: Methods Paper II Open
The COMPAS ( https://compas.science ) public rapid binary population synthesis code has undergone a number of key improvements since the original COMPAS methods paper was published. These include more sophisticated and robust treatments of…
View article: Implications of modern mass-loss rates for massive stars
Implications of modern mass-loss rates for massive stars Open
Massive stars lose a significant fraction of their mass through stellar winds at various stages of their lives, including on the main sequence, during the red supergiant phase, and as evolved helium-rich Wolf--Rayet stars. In stellar popul…
View article: Rapid stellar and binary population synthesis with COMPAS: methods paper II
Rapid stellar and binary population synthesis with COMPAS: methods paper II Open
The COMPAS public rapid binary population synthesis code has undergone a number of key improvements since the original COMPAS methods paper (Team COMPAS: Riley et al., 2022) was published. These include more sophisticated and robust treatm…
View article: Companion Robots: A Debate
Companion Robots: A Debate Open
Is it good or bad for humans to form intimate relationships with machines? This question has vexed machine designers for many years. One of its early appearances in computing was Joe Weizenbaum's Eliza program in 1966. Eliza mimicked a con…
View article: A trifecta of modelling tools: a Bayesian binary black hole model selection combining population synthesis and galaxy formation models
A trifecta of modelling tools: a Bayesian binary black hole model selection combining population synthesis and galaxy formation models Open
Gravitational waves (GWs) have revealed surprising properties of binary black hole (BBH) populations, but there is still mystery surrounding how these compact objects evolve. We apply Bayesian inference and an efficient method to calculate…
View article: A Trifecta of Modelling Tools: A Bayesian Binary Black Hole Model Selection combining Population Synthesis and Galaxy Formation Models
A Trifecta of Modelling Tools: A Bayesian Binary Black Hole Model Selection combining Population Synthesis and Galaxy Formation Models Open
Gravitational waves (GWs) have revealed surprising properties of binary black hole (BBH) populations, but there is still mystery surrounding how these compact objects evolve. We apply Bayesian inference and an efficient method to calculate…
View article: AI Powers the Digital Economy
AI Powers the Digital Economy Open
Artificial Intelligence (AI) has had a profound impact on the digital economy. We explore that impact, and outline how AI technologies, including machine learning and big data analytics, have revolutionized sectors such as eCommerce, finan…
View article: Surrogate Forward Models for Population Inference on Compact Binary Mergers
Surrogate Forward Models for Population Inference on Compact Binary Mergers Open
Rapidly growing catalogs of compact binary mergers from advanced gravitational wave detectors allow us to explore the astrophysics of massive stellar binaries. Merger observations can constrain the uncertain parameters that describe the un…
View article: Surrogate forward models for population inference on compact binary mergers
Surrogate forward models for population inference on compact binary mergers Open
Rapidly growing catalogs of compact binary mergers from advanced gravitational-wave detectors allow us to explore the astrophysics of massive stellar binaries. Merger observations can constrain the uncertain parameters that describe the un…
View article: Workings of science
Workings of science Open
While most people are not familiar with the details of how artificial intelligence (AI) works, the term itself is becoming more familiar to the non-scientific community, to the point that it ("AI") has almost become part of the regular ver…
View article: Rapid Stellar and Binary Population Synthesis with COMPAS
Rapid Stellar and Binary Population Synthesis with COMPAS Open
Compact Object Mergers: Population Astrophysics and Statistics (COMPAS; https://compas.science ) is a public rapid binary population synthesis code. COMPAS generates populations of isolated stellar binaries under a set of parameterized ass…
View article: COMPAS: A rapid binary population synthesis suite
COMPAS: A rapid binary population synthesis suite Open
Most massive stars—those with initial masses greater than 8 M⊙—are born with another massive star as a companion (Moe & Di Stefano, 2017; Sana et al., 2012). Massive binary stars are responsible for producing many exotic astrophysical phen…
View article: Dataset from: Rapid stellar and binary population synthesis with COMPAS
Dataset from: Rapid stellar and binary population synthesis with COMPAS Open
This data set is used to produce Figure 16 of the COMPAS Paper (Team COMPAS et al. 2021). The file contains the output of 10,000,000 binaries evolved using COMPAS v02.21.00, using adaptive importance sampling (STROOPWAFEL) , sampling from …
View article: Dataset from: Rapid stellar and binary population synthesis with COMPAS
Dataset from: Rapid stellar and binary population synthesis with COMPAS Open
This data set is used to produce Figure 16 of the COMPAS Paper (Team COMPAS et al. 2021). The file contains the output of 10,000,000 binaries evolved using COMPAS v02.21.00, using adaptive importance sampling (STROOPWAFEL) , sampling from …
View article: Rapid stellar and binary population synthesis with COMPAS
Rapid stellar and binary population synthesis with COMPAS Open
Compact Object Mergers: Population Astrophysics and Statistics (COMPAS; https://compas.science) is a public rapid binary population synthesis code. COMPAS generates populations of isolated stellar binaries under a set of parameterized assu…
View article: Rapid stellar and binary population synthesis with COMPAS
Rapid stellar and binary population synthesis with COMPAS Open
Compact Object Mergers: Population Astrophysics and Statistics (COMPAS; https://compas.science) is a public rapid binary population synthesis code. COMPAS generates populations of isolated stellar binaries under a set of parametrized assum…
View article: Dataset from: Binary population synthesis with probabilistic remnant mass and kick prescriptions
Dataset from: Binary population synthesis with probabilistic remnant mass and kick prescriptions Open
This contains the data behind the paper "Binary population synthesis with probabilistic remnant mass and kick prescriptions" See https://github.com/TeamCOMPAS/COMPAS for code information and instructions on parsing the data.
View article: Dataset from: Binary population synthesis with probabilistic remnant mass and kick prescriptions
Dataset from: Binary population synthesis with probabilistic remnant mass and kick prescriptions Open
This contains the data behind the paper "Binary population synthesis with probabilistic remnant mass and kick prescriptions" See https://github.com/TeamCOMPAS/COMPAS for code information and instructions on parsing the data.
View article: Chemically Homogeneous Evolution: A rapid population synthesis approach
Chemically Homogeneous Evolution: A rapid population synthesis approach Open
This contains the data behind the paper Chemically Homogeneous Evolution: A rapid population synthesis approach See https://github.com/TeamCOMPAS/COMPAS for code information and instructions on parsing the data. Both files are zipped HDF5…
View article: Chemically Homogeneous Evolution: A rapid population synthesis approach
Chemically Homogeneous Evolution: A rapid population synthesis approach Open
This contains the data behind the paper Chemically Homogeneous Evolution: A rapid population synthesis approach See https://github.com/TeamCOMPAS/COMPAS for code information and instructions on parsing the data. Both files are zipped HDF5…
View article: Will machines ever think like humans?
Will machines ever think like humans? Open
What is "human intelligence?" What is thinking? What does it mean to "think like a human?" Is it possible for machines to display human intelligence, to think like humans? This article explores these questions, and gives a brief overview o…
View article: Chemically homogeneous evolution: a rapid population synthesis approach
Chemically homogeneous evolution: a rapid population synthesis approach Open
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 Astro…
View article: The elusive promise of AI
The elusive promise of AI Open
A 2006 Ubiquity article titled "The Elusive Promise of AI" contended that the field of artificial intelligence (AI) promised much but had not yet delivered on its promises. This follow-up article reviews some of the more significant events…
View article: Massive Stellar Triples Leading to Sequential Binary Black Hole Mergers in the Field
Massive Stellar Triples Leading to Sequential Binary Black Hole Mergers in the Field Open
Stellar triples with massive stellar components are common and can lead to sequential binary black hole mergers. Here we outline the evolution toward these sequential mergers and explore these events in the context of gravitational-wave as…
View article: Binary population synthesis with probabilistic remnant mass and kick prescriptions
Binary population synthesis with probabilistic remnant mass and kick prescriptions Open
We report on the impact of a probabilistic prescription for compact remnant masses and kicks on massive binary population synthesis. We find that this prescription populates the putative mass gap between neutron stars and black holes with …
View article: Massive Stellar Triples Leading to Sequential Binary Black-Hole Mergers\n in the Field
Massive Stellar Triples Leading to Sequential Binary Black-Hole Mergers\n in the Field Open
Stellar triples with massive stellar components are common, and can lead to\nsequential binary black-hole mergers. Here, we outline the evolution towards\nthese sequential mergers, and explore these events in the context of\ngravitational-…
View article: Will post COVID-19 education be digital?
Will post COVID-19 education be digital? Open
The world is experiencing large-scale social and behavioral changes in response to the COVID-19 pandemic. These changes have the potential to cause a fundamental and profound shift in the way we conduct our lives, which could have both pos…