中文
相关论文

相关论文: A comprehensive population synthesis study of post…

200 篇论文

Common envelope evolution (CEE) occurs in some binary systems involving asymptotic giant branch (AGB) or red giant branch (RGB) stars, and understanding this process is crucial for understanding the origins of various transient phenomena.…

太阳与恒星天体物理 · 物理学 2020-02-19 Luke Chamandy , Adam Frank , Eric G. Blackman , Jonathan Carroll-Nellenback , Baowei Liu , Yisheng Tu , Jason Nordhaus , Zhuo Chen , Bo Peng

Next-generation gravitational-wave observatories will reach farther into the universe than currently possible, revealing black-hole mergers from early stellar binary systems such as Population III stars, whose properties are currently…

广义相对论与量子宇宙学 · 物理学 2025-05-13 Cailin Plunkett , Matthew Mould , Salvatore Vitale

We report the first results of our programme to obtain multi-epoch radial velocity measurements of stars with a strong far-UV excess to identify post common-envelope binaries (PCEBs). The targets have been identified using optical…

太阳与恒星天体物理 · 物理学 2015-05-14 P. F. L. Maxted , B. T. Gaensicke , M. R. Burleigh , J. Southworth , T. R. Marsh , R. Napiwotzki , G. Nelemans , P. L. Wood

Bayesian inference is the workhorse of gravitational-wave astronomy, for example, determining the mass and spins of merging black holes, revealing the neutron star equation of state, and unveiling the population properties of compact…

天体物理仪器与方法 · 物理学 2019-09-04 Colm Talbot , Rory Smith , Eric Thrane , Gregory B. Poole

Population inference in gravitational-wave astronomy allows us to connect individual detections to the astrophysics of compact objects and their environments. Current approaches employed for population inference with LIGO-Virgo-KAGRA data…

We present PopSED, a framework for the population-level inference of galaxy properties from photometric data. Unlike the traditional approach of first analyzing individual galaxies and then combining the results to determine the physical…

天体物理仪器与方法 · 物理学 2023-12-21 Jiaxuan Li , Peter Melchior , ChangHoon Hahn , Song Huang

In the core accretion scenario, a massive core forms first and then accretes an envelope. When discussing how this core forms some divergences appear. First scenarios of planet formation predict the accretion of km-sized bodies, called…

地球与行星天体物理 · 物理学 2020-08-05 Natacha Brügger , Remo Burn , Gavin Coleman , Yann Alibert , Willy Benz

We examine planets orbiting post-common envelope binaries (PCEBs) from the perspective of angular momentum evolution, and conclude that the planets are more likely to be first generation (FG) planets than second generation (SG) planets. FG…

太阳与恒星天体物理 · 物理学 2015-06-19 Ealeal Bear , Noam Soker

Bayesian predictive inference analyzes a dataset to make predictions about new observations. When a model does not match the data, predictive accuracy suffers. We develop population empirical Bayes (POP-EB), a hierarchical framework that…

机器学习 · 统计学 2015-06-10 Alp Kucukelbir , David M. Blei

An update is presented to the software package SeBa for simulating single star and binary evolution in which new stellar evolution tracks have been implemented. SeBa is applied to study the population of close double white dwarf and the…

太阳与恒星天体物理 · 物理学 2015-03-17 Silvia Toonen , Gijs Nelemans , Simon Portegies Zwart

Millisecond pulsars (MSPs) are the oldest but fastest pulsars known to date. In the 1980s, to explain how these pulsars could be formed, a new hypothesis was formulated: the recycling of pulsars, i.e the fact that a pulsar could accrete…

高能天体物理现象 · 物理学 2026-03-16 Mattéo Sautron , Jérôme Pétri , Dipanjan Mitra , Adélie Dupuy--Junet , Marie-Eloïse Pietrin

With its last observing run, the LIGO, Virgo, and KAGRA collaboration has detected almost one hundred gravitational waves from compact binary coalescences. A common approach to studying the population properties of the observed binaries is…

广义相对论与量子宇宙学 · 物理学 2022-10-12 Simone Mastrogiovanni , Astrid Lamberts , Rahul Srinivasan , Tristan Bruel , Nelson Christensen

We present a new method for constraining the mass transfer evolution of low mass X-ray binaries (LMXBs) - a reverse population synthesis technique. This is done using the detailed 1D stellar evolution code MESA (Modules for Experiments in…

高能天体物理现象 · 物理学 2022-11-23 Kenny X. Van , Natalia Ivanova

Binary population synthesis calculations and associated predictions, especially event rates, are known to depend on a significant number of input model parameters with different degrees of sensitivity. At the same time, for systems with…

天体物理学 · 物理学 2008-11-26 R. O'Shaughnessy , V. Kalogera , K. Belczynski

In recent years, observations have shown that multiple-star systems such as hierarchical triple and quadruple-star systems are common, especially among massive stars. They are potential sources of interesting astrophysical phenomena such as…

太阳与恒星天体物理 · 物理学 2021-02-19 Adrian S. Hamers , Antti Rantala , Patrick Neunteufel , Holly Preece , Pavan Vynatheya

The physical properties of galaxies are encoded within their spectral energy distribution and require comparison with models to be extracted. These models must contain a synthetic stellar population and, where infrared data is to be used,…

星系天体物理 · 物理学 2022-06-22 G. T. Jones , E. R. Stanway , A. C. Carnall

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…

Binary population synthesis (BPS) employs prescriptions to predict final fates, explosion or implosion, and remnant masses based on one or two stellar parameters at the evolutionary cutoff imposed by the code, usually at or near central…

高能天体物理现象 · 物理学 2022-01-19 Rachel A. Patton , Tuguldur Sukhbold , J. J. Eldridge

We conduct binary population synthesis to investigate the formation of wind-fed high-mass X-ray binaries containing black holes (BH-HMXBs). We evolve multiple populations of high-mass binary stars and consider BH-HMXB formation rates,…

高能天体物理现象 · 物理学 2023-06-28 Isobel M. Romero-Shaw , Ryosuke Hirai , Arash Bahramian , Reinhold Willcox , Ilya Mandel

We combine pulsar population synthesis with simulation-based inference (SBI) to constrain the magnetorotational properties of isolated Galactic radio pulsars. We first develop a framework to model neutron star birth properties and their…

高能天体物理现象 · 物理学 2024-06-06 Vanessa Graber , Michele Ronchi , Celsa Pardo-Araujo , Nanda Rea