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Ultra-compact X-ray binaries (UCXBs) are a subclass of low-mass X-ray binaries (LMXBs) characterized by ultra-short orbital periods, typically less than $60-80\,$min. They consist of a compact mass-accretor and a hydrogen-poor mass-donor,…

High Energy Astrophysical Phenomena · Physics 2026-03-17 Bo Wang , Dongdong Liu , Yunlang Guo , Hailiang Chen , Wencong Chen , Zhanwen Han

A recent paper (Burke, Collins & Mann 2000) presents the analysis of the K-band Hubble diagram of 76 brightest cluster galaxies (BCGs) in X-ray clusters and shows that the properties of BCGs depend on the X-ray luminosity (Lx) of their host…

Astrophysics · Physics 2009-11-07 Sarah Brough , Chris Collins , Doug Burke , Bob Mann , Paul Lynam

Building on recent work by Chandar et al. (2020), we construct X-ray luminosity functions (XLFs) for different classes of X-ray binary (XRB) donors in the nearby star-forming galaxy M83 through a novel methodology: rather than classifying…

High Energy Astrophysical Phenomena · Physics 2021-05-12 Qiana Hunt , Elena Gallo , Rupali Chandar , Paula Johns Mulia , Angus Mok , Andrea Prestwich , Shengchen Liu

A low mass X-ray binary (LMXB) contains either a neutron star or a black hole accreting materials from its low mass companion star. It is one of the primary astrophysical sources for studying the stellar size compact objects and the…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Yi Chou

We investigated the optical properties of 7 clusters of galaxies observed in three colors over the range of absolute magnitudes -24 < M < -12. Our aim is to estimate the Luminosity Function and the total cluster luminosity of our sample in…

Astrophysics · Physics 2009-11-10 I. Parolin , E. Molinari , G. Chincarini

We model the present-day number and characteristics of Ultra-compact X-ray binaries (UCXBs) in the Galactic Bulge. The main objective is to compare the results with the forthcoming data from the Galactic Bulge Survey (GBS) in order to learn…

Solar and Stellar Astrophysics · Physics 2013-02-04 Lennart van Haaften , Gijs Nelemans

Low-mass X-ray binaries (LMXBs) are high-energy sources that require multi-wavelength follow up campaigns to be fully characterized. New transients associated to LMXBs are regularly discovered, and previously known systems are often…

High Energy Astrophysical Phenomena · Physics 2024-01-23 Francis Fortin , Anish Kalsi , Federico García , Sylvain Chaty

The magnetic braking (MB) plays an important role in driving the evolution of low-mass X-ray binaries (LMXBs). The modified MB prescription, convection and rotation boosted (CARB) model, is very successful in reproducing the detected…

High Energy Astrophysical Phenomena · Physics 2024-10-29 Yun-Ning Fan , Yong Shao , Wen-Cong Chen

A summary is given of the present state of our knowledge of High-Mass X-ray Binaries (HMXBs), their formation and expected future evolution. Among the HMXB-systems that contain neutron stars, only those that have orbital periods upwards of…

High Energy Astrophysical Phenomena · Physics 2020-02-19 Edward P. J. van den Heuvel

We present the results of a survey of N-body simulations aimed at exploring the evolution of compact binaries in multiple-population globular clusters.We show that as a consequence of the initial differences in the structural properties of…

We developed a new semi-analytic galaxy formation model: Galaxy Assembly with Binary Evolution (GABE). For the first time we introduce binary evolution into semi-analytic models of galaxy formation by using Yunnan-II stellar population…

Astrophysics of Galaxies · Physics 2019-11-06 Zhen Jiang , Jie Wang , Liang Gao , Fenghui Zhang , Qi Guo , Lan Wang , Jun Pan

The galactic population of globular clusters are old, dense star systems, with a typical cluster containing $10^4 - 10^6$ stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense…

Astrophysics · Physics 2016-10-19 Matthew Benacquista

Self-lensing (SL) in binary systems has the potential to provide a unique observational window into the Galactic population of compact objects. Using the $\mathtt{startrack}$ and COSMIC population synthesis codes, we investigate how…

High Energy Astrophysical Phenomena · Physics 2026-02-18 Grzegorz Wiktorowicz , Matthew Middleton , Aleksandra Olejak , Cordelia Dashwood-Brown , Madeleine-Mai Ward , Adam Ingram

[abridged] Aims. We model the number and properties of ultracompact X-ray binaries (UCXBs) in the Galactic Bulge. The objective is to learn about the formation of UCXBs and their evolution, such as the onset of mass transfer and late-time…

Solar and Stellar Astrophysics · Physics 2013-03-27 L. M. van Haaften , G. Nelemans , R. Voss , S. Toonen , S. F. Portegies Zwart , L. R. Yungelson , M. V. van der Sluys

The main goal of this study is to investigate the LF of a sample of 142 X-ray selected clusters, with spectroscopic redshift confirmation and a well defined selection function, spanning a wide redshift and mass range, and to test the LF…

The excess numbers of blue galaxies at faint magnitudes is a subject of much controversy. Recent Hubble Space Telescope results has revealed a plethora of galaxies with peculiar morphologies tentatively identified as the evolving…

The author presented the results on the evolution of NS LMXBs and the formation of UCXBs(Ma & Li 2009 for details), and proposed a scenario for the formation of UCXBs from L/IMXBs with the aid of a CB disk in this work.

High Energy Astrophysical Phenomena · Physics 2010-05-12 Xiang-Dong Li

We present an analysis of the long-term optical/IR behavior of 111 high-mass X-ray binaries (HMXBs) in the Small Magellanic Cloud based on data from the OGLE collaboration. Most systems exhibit variability on a range of time scales. This…

High Energy Astrophysical Phenomena · Physics 2025-01-24 Helena Treiber , Georgios Vasilopoulos , Charles Bailyn , Frank Haberl , Andrzej Udalski

We present a systematic study of the X-ray binaries (XRBs) containing a black hole (BH) and a non-degenerate companion, in which mass transfer takes place via either capturing the companion's wind or Roche lobe overflow (RLO). As shown in…

High Energy Astrophysical Phenomena · Physics 2020-08-12 Yong Shao , Xiang-Dong Li

The statistical properties of the ultra-luminous X-ray source (ULX) populations extracted from the ROSAT HRI survey of X-ray point sources in nearby galaxies in Paper I are studied to reveal connections between the ULX phenomenon and survey…

Astrophysics · Physics 2009-11-10 Ji-Feng Liu , Joel N. Bregman , Jimmy Irwin
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