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[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

Population synthesis studies constitute a powerful method to reconstruct the birth distribution of periods and magnetic fields of the pulsar population. When this method is applied to populations in different wavelengths, it can break the…

High Energy Astrophysical Phenomena · Physics 2015-09-30 M. Gullón , J. A. Pons , J. A. Miralles , D. Viganò , N. Rea , R. Perna

Interacting binaries are of general interest as laboratories for investigating the physics of accretion, which gives rise to the bulk of high-energy radiation in the Galaxy. They allow us to probe stellar evolution processes that cannot be…

High Energy Astrophysical Phenomena · Physics 2021-07-22 Sophie Lund Schrøder , Morgan MacLeod , Enrico Ramirez-Ruiz , Ilya Mandel , Tassos Fragos , Abraham Loeb , Rosa Wallace Everson

Photoevaporation of planet forming discs by high energy radiation from the central star is potentially a crucial mechanism for disc evolution and it may play an important role in the formation and evolution of planetary system. We present…

Earth and Planetary Astrophysics · Physics 2019-10-25 Giovanni Picogna , Barbara Ercolano , James E. Owen , Michael L. Weber

Different accretion regimes onto magnetized NSs in HMXBs are considered: wind-fed supersonic (Bondi) regime at high accretion rates $\dot M\gtrsim 4\times 10^{16}$~[g s$^{-1}$] , subsonic settling regime at lower $\dot M$ and supercritical…

High Energy Astrophysical Phenomena · Physics 2020-01-20 Konstantin Postnov , Aleksandre Kuranov , Lev Yungelson

Chandra's high angular resolution can resolve emission from stellar X-ray binaries out of the diffuse X-ray emission from gaseous atmospheres within elliptical galaxies. Variations in the X-ray binary populations (per unit galaxian optical…

Astrophysics · Physics 2007-05-23 Raymond E. White

It has been proposed multiple times to use the neutron star (NS) in high-mass X-ray binaries (HMXBs) as an orbiting X-ray probe embedded in the wind-fed of its supergiant (SG) companion in order to constrain the stellar line-driven wind…

High Energy Astrophysical Phenomena · Physics 2023-03-01 Ali Taani

Recent RXTE and Chandra discoveries of low mass X-ray binaries with ultra-short orbital periods have initiated theoretical work on the origins of these peculiar systems. Using the StarTrack population synthesis code the formation and…

Astrophysics · Physics 2009-11-10 Krzysztof Belczynski , Ronald E. Taam

The formation of low-mass X-ray binaries (LMXBs) is an ongoing challenge in stellar evolution. The important subset of LMXBs are the binary systems with a neutron star (NS) accretor. In NS LMXBs with non-degenerate donors, the mass transfer…

Solar and Stellar Astrophysics · Physics 2023-10-18 K. X. Van , N. Ivanova

I review the evolutionary connection between low-mass X-ray binaries (LMXBs) and pulsars with binary companions (bPSRs) from a stellar binary evolution perspective. I focus on the evolution of stellar binaries with end-states consisting of…

Astrophysics · Physics 2009-06-23 Christopher J. Deloye

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

The population of compact binaries in dense stellar systems is affected strongly by frequent dynamical interactions between stars and their interplay with the stellar evolution. In this contribution, we consider these effects on binaries…

Astrophysics · Physics 2007-05-23 N. Ivanova , F. A. Rasio

Using the population synthesis code StarTrack we construct the first synthetic X-ray binary populations for direct comparison with the X-ray luminosity function (XLF) of NGC 1569 observed with Chandra. Our main goal is to examine whether it…

Astrophysics · Physics 2016-08-30 K. Belczynski , V. Kalogera , A. Zezas , G. Fabbiano

We present a systematic study of the evolution of intermediate- and low-mass X-ray binaries consisting of an accreting neutron star of mass $1.0-1.8 M_{\odot}$ and a donor star of mass $1.0-6.0 M_{\odot}$. In our calculations we take into…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Yong Shao , Xiang-Dong Li

Be/X-ray binaries are the most numerous group of high-mass X-ray binaries. Their long-term optical and infrared variability reflects the evolution of the circumstellar disk around the luminous companion. This variability manifests…

Solar and Stellar Astrophysics · Physics 2026-04-15 P. Reig , D. Blinov , A. Tzouvanou

This is a catalogue of approximately 70 X-ray emitting binary systems in the Small Magellanic Cloud (SMC) that contain a Be star as the mass donor in the system and a clear X-ray pulse signature from a neutron star. The systems are…

High Energy Astrophysical Phenomena · Physics 2015-08-06 M. J. Coe , J. Kirk

In wind-powered X-ray binaries, the radiatively driven stellar wind from the primary may be inhibited by the X-ray irradiation. This creates the feedback that limits the X-ray luminosity of the compact secondary. Wind inhibition might be…

Solar and Stellar Astrophysics · Physics 2018-12-12 Jiri Krticka , Jiri Kubat , Iva Krtickova

We use simple energetic arguments to estimate the contribution of massive X-ray binaries and supernova remnants to the cosmic X-ray background (XRB) at energies in excess of 2 keV. Recent surveys have shown that AGN probably account for…

Astrophysics · Physics 2009-10-31 Priyamvada Natarajan , Omar Almaini

Recent discoveries have confirmed the existence of a large population of X-ray sources fuelled by accretion from the stellar wind of an OB supergiant. Such systems are powerful laboratories to study many aspects of astrophysics. Over the…

High Energy Astrophysical Phenomena · Physics 2011-03-25 Ignacio Negueruela

X-rays from binaries in small, metal-deficient galaxies may have contributed significantly to the heating and reionization of the early universe. We investigate this claim by studying blue compact dwarfs (BCDs) as local analogues to these…

Astrophysics of Galaxies · Physics 2015-06-19 Matthew Brorby , Philip Kaaret , Andrea Prestwich