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相关论文: Population synthesis of ultracompact X-ray binarie…

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Emission from X-ray binaries (XRBs) is a major component of the total X-ray luminosity of normal galaxies, so X-ray studies of high redshift galaxies allow us to probe the formation and evolution of X-ray binaries on very long timescales.…

宇宙学与河外天体物理 · 物理学 2015-06-11 M. Tremmel , T. Fragos , B. D. Lehmer , P. Tzanavaris , K. Belczynski , V. Kalogera , A. R. Basu-Zych , W. M. Farr , A. Hornschemeier , L. Jenkins , A. Ptak , A. Zezas

A binary in which a slightly evolved star starts mass transfer to a neutron star can evolve towards ultra-short orbital periods under the influence of magnetic braking. This is called magnetic capture. We investigate in detail for which…

天体物理学 · 物理学 2009-11-10 M. V. van der Sluys , F. Verbunt , O. R. Pols

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 present the largest-scale comparison to date between observed extragalactic X-ray binary (XRB) populations and theoretical models of their production. We construct observational X-ray luminosity functions (oXLFs) using Chandra…

宇宙学与河外天体物理 · 物理学 2015-06-16 P. Tzanavaris , T. Fragos , M. Tremmel , L. Jenkins , A. Zezas , B. D. Lehmer , A. Hornschemeier , V. Kalogera , A. Ptak , A. R. Basu-Zych

X-ray binaries with black hole (BH) accretors and massive star donors at short orbital periods of a few days can evolve into close binary BH systems (BBH) that merge within the Hubble time through stable mass transfer evolution. From…

高能天体物理现象 · 物理学 2020-02-19 Jakub Klencki , Gijs Nelemans

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…

高能天体物理现象 · 物理学 2020-08-12 Yong Shao , Xiang-Dong Li

Ultracompact Galactic binary systems (UCBs) emit low-frequency gravitational waves (GWs). The emission of GWs is causing these systems to lose angular momentum, which is detectable by observing an orbital period decay.…

We report the discovery of OGLE-UCXB-01, a 12.8 minute variable object located in the central field of Galactic bulge globular cluster Djorg 2. The presence of frequent, short-duration brightenings at such an ultrashort period in long-term…

太阳与恒星天体物理 · 物理学 2019-08-23 P. Pietrukowicz , P. Mroz , A. Udalski , I. Soszynski , J. Skowron

The recent discovery of M31 UCXB-1, the first extragalactic ultracompact X-ray binary (UCXB) with an orbital period of $T_{\rm orb} \sim 465$ s, presents a unique laboratory for studying close binary evolution and an unprecedented target…

高能天体物理现象 · 物理学 2026-01-13 Xiao Guo , Zhoujian Cao , Zhiwei Chen

We conduct one of the largest systematic investigations of bright X-ray binaries (XRBs) in both young star clusters and ancient globular clusters (GCs) using a sample of six nearby, star-forming galaxies. Combining complete CXO X-ray source…

高能天体物理现象 · 物理学 2023-08-16 Qiana Hunt , Rupali Chandar , Elena Gallo , Matthew Floyd , Thomas J. Maccarone , David A. Thilker

We consider evolutionary models for the population of short-period (<10 hr) low-mass black-hole binaries (LMBHBs) and compare them with observations of soft X-ray transients (SXTs). We show that assuming strongly reduced magnetic braking…

天体物理学 · 物理学 2009-11-13 L. Yungelson , J. -P. Lasota

We explore a Boltzmann scheme for studying the evolution of compact binary populations of globular clusters. We include processes of compact-binary formation by tidal capture and exchange encounters, binary destruction by dissociation and…

天体物理学 · 物理学 2009-11-13 Sambaran Banerjee , Pranab Ghosh

High redshift galaxies permit the study of the formation and evolution of X-ray binary populations on cosmological timescales, probing a wide range of metallicities and star-formation rates. In this paper, we present results from a large…

Stellar companions of accreting neutron stars in ultra compact X-ray binaries (UCXBs) are hydrogen-deficient. Their helium or C/O accretion discs are strongly X-ray irradiated. Both the chemical composition and irradiation determine the…

天体物理学 · 物理学 2009-11-13 Jean-Pierre Lasota , Guillaume Dubus , Katarzyna Kruk

Using an updated population synthesis code initially developed by Hurley et al. we modeled the synthetic X-ray binary (XRB) populations for direct comparison with the universal, featureless X-ray luminosity function (XLF) of high mass X-ray…

高能天体物理现象 · 物理学 2015-06-17 Zhao-Yu Zuo , Xiang-Dong Li , Qiu-Sheng Gu

We present deep Hubble Space Telescope Advanced Camera for Surveys / High Resolution Channel U, narrow-V, and I images of nine "ultracompact" blue dwarf galaxies (UCBDs) selected from the Sloan Digital Sky Survey. We define UCBDs as local…

Magnetic braking (MB) plays an important role in the evolution of close low-mass X-ray binaries (LMXBs). It is also essential to the formation of ultracompact X-ray binaries (UCXBs). There have been lively investigations on the MB…

高能天体物理现象 · 物理学 2024-07-16 Zhuling Deng , Xiangdong Li

X-ray binary population at the Galactic center is proposed here to form as a result of a starburst, which is synthesized by using the ``Scenario Machine'' code of binary star evolution. For the currently assumed starburst age of 4-7…

天体物理学 · 物理学 2008-02-03 S. B. Popov , V. M. Lipunov , L. M. Ozernoy , K. A. Postnov , M. E. Prokhorov

Luminous X-ray binaries (>1E34 erg/s, LMXBs) have a neutron star or black hole primary, and in globular clusters, most of these close binaries are expected to be have evolved from wider binaries through dynamical interactions with other…

天体物理学 · 物理学 2009-11-11 Joel N. Bregman

We model the multiwavelength properties of binaries accreting at super-critical rates with the aim to better understand the observational properties of Ultra-luminous X-ray Sources (ULXs). We calculate an extended grid of binary systems…

高能天体物理现象 · 物理学 2021-11-17 Elena Ambrosi , Luca Zampieri , Fabio Pintore , Anna Wolter