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Type Ia supernovae (SNe Ia) are successful cosmological distance indicators and important element factories in the chemical evolution of galaxies. They are generally thought to originate from thermonuclear explosions of carbon-oxygen white…

高能天体物理现象 · 物理学 2023-08-25 Yun-Lang Guo , Bo Wang , Cheng-Yuan Wu , Wen-Cong Chen , Long Jiang , Zhan-Wen Han

Although supernovae is a well-known endpoint of an accreting white dwarf, alternative theoretical possibilities has been discussing broadly, such as the accretion-induced collapse (AIC) event as the endpoint of oxygen-neon (ONe) white…

The role and implication of binding energy through the accretion-induced collapse (AIC) of accreting white dwarfs (WDs) for the production of millisecond pulsars (MSPs) are investigated. I examine the binding energy model due to the…

高能天体物理现象 · 物理学 2023-03-15 Ali Taani

Millisecond pulsars (MSPs) are mainly characterised by their spin periods, B-fields and masses - quantities which are largely affected by previous interactions with a companion star in a binary system. In this paper, we investigate the…

太阳与恒星天体物理 · 物理学 2012-08-30 Thomas M. Tauris , Norbert Langer , Michael Kramer

We investigate the evolution of star clusters containing intermediate-mass black hole (IMBH) of $300$ to $5000\ \mathrm{M}_\odot$, focusing on the formation and evolution of IMBH-stellar mass black holes (SBHs; $M_{\rm BH} \lesssim 10^2\…

星系天体物理 · 物理学 2025-03-31 Seungjae Lee , Hyung Mok Lee , Ji-hoon Kim , Rainer Spurzem , Jongsuk Hong , Eunwoo Chung

This paper uses population synthesis to investigate the possible origin of isolated millisecond pulsars (IMSPs) as born from the coalescence of a neutron star (NS) and a white dwarf (WD). Results show that the galactic birth - rate of IMSPs…

高能天体物理现象 · 物理学 2019-02-27 Shengnan Sun , Lin Li , Helei Liu , Guoliang Lü , Zhaojun Wang , Chunhua Zhu

We present a systematic study of the evolution of low- and intermediate-mass X-ray binaries (L/IMXBs) consisting of a $1.4\,M_{\odot}$ neutron star (NS) and a donor star of mass $1-8\,M_{\odot}$. Using grids of detailed MESA simulations, we…

高能天体物理现象 · 物理学 2026-01-09 Yu-Dong Nie , Yong Shao , Jian-Guo He , Ze-Lin Wei , Shi-Jie Gao , Xiao-Jie Xu , Xiang-Dong Li

The bright subdwarf-O star (sdO), HD 49798, is in a 1.55 day orbit with a compact companion that is spinning at 13.2 seconds. Using the measurements of the effective temperature ($T_{\rm eff}$), surface gravity ($\log g$), and surface…

太阳与恒星天体物理 · 物理学 2017-10-04 Jared Brooks , Thomas Kupfer , Lars Bildsten

Helium accretion induced explosions in CO white dwarfs (WDs) are considered promising candidates for a number of observed types of stellar transients, including supernovae (SNe) of Type Ia and Type Iax. However, a clear favorite outcome has…

太阳与恒星天体物理 · 物理学 2019-06-26 P. Neunteufel , S. -C. Yoon , N. Langer

The most frequently seen binary companions to millisecond pulsars (MSPs) are helium white dwarfs (He WDs). The standard rejuvenation mechanism, in which a low- to intermediate-mass companion to a neutron star fills its Roche lobe between…

太阳与恒星天体物理 · 物理学 2017-10-04 Sarah L. Smedley , Christopher A. Tout , Lilia Ferrario , Dayal T. Wickramasinghe

Millisecond pulsars (MSPs) are believed to be old neutron stars, formed via Type Ib/c core-collapse supernovae, which have subsequently been spun up to high rotation rates via accretion from a companion star in a highly circularised…

太阳与恒星天体物理 · 物理学 2015-06-17 Paulo C. C. Freire , Thomas M. Tauris

We investigate some physical characteristics of Millisecond Pulsar (MSP) such as magnetic fields, spin periods and masses, that are produced by Accretion Induced Collapse (AIC) of an accreting white dwarf (WD) in stellar binary systems. We…

高能天体物理现象 · 物理学 2015-06-03 Ali Taani , ChengMin Zhang , Mashhoor Al-Wardat , YongHeng Zhao

PSR J1640+2224 is a binary millisecond pulsar (BMSP) with a white dwarf (WD) companion. Recent observations indicate that the WD is very likely to be a $\sim 0.7\,M_{\odot}$ CO WD. Thus the BMSP should have evolved from an intermediate-mass…

高能天体物理现象 · 物理学 2020-03-25 Zhu-Ling Deng , Zhi-Fu Gao , Xiang-Dong Li , Yong Shao

Magnetic braking (MB) mechanism plays a vital role throughout the evolution of low-mass X-ray binaries (LMXBs). Considering the standard MB prescription, the initial orbital periods of LMXBs that can evolve into binary millisecond pulsar…

高能天体物理现象 · 物理学 2025-11-11 Xing-Peng Yang , Wen-Cong Chen

We investigate the evolutionary properties of AM~CVn stars with massive white dwarf donors and accretors. As a representative of them we consider a binary initially composed by a 0.30 M$_\odot$, He WD and a 1.02 M$_\odot$, CO WD. We…

太阳与恒星天体物理 · 物理学 2019-01-16 L. Piersanti , L. R. Yungelson , S. Cristallo , A. Tornambé

The evolution of binaries consisting of evolved main sequence stars (1 < M_d/Msun < 3.5) with white dwarf companions (0.7 < M_wd/Msun < 1.2) is investigated through the thermal mass transfer phase. Taking into account the stabilizing effect…

天体物理学 · 物理学 2016-08-30 Natalia Ivanova , Ronald E. Taam

We have performed detailed numerical calculations of the non-conservative evolution of close binary systems with low-mass (1.0-2.0 M_sun) donor stars and a 1.3 M_sun accreting neutron star. Rather than using analytical expressions for…

天体物理学 · 物理学 2007-05-23 T. M. Tauris , G. J. Savonije

PSR J$1946+3417$ is a millisecond pulsar (MSP) with a spin period $P\simeq3.17\rm~ms$. Harbored in a binary with an orbital period $P_{\rm b}\simeq27$ days, the MSP is accompanied by a white dwarf (WD). The masses of the MSP and the WD were…

高能天体物理现象 · 物理学 2021-11-17 L. Jiang , Na Wang , Wen-Cong Chen , Wei-Min Liu , Chun-wei Leng , Jian-Ping Yuan , Xiang-Li Qian

We present a possible evolutionary pathway to form planetary nebulae (PNe) with close neutron star (NS)-white dwarf (WD) binary central stars. By employing a comprehensive binary population synthesis technique we find that the evolution…

高能天体物理现象 · 物理学 2023-10-11 Iminhaji Ablimit , Noam Soker

We examine the growing class of binary millisecond pulsars known as redbacks. In these systems the pulsar's companion has a mass between 0.1 and about 0.5 solar masses in an orbital period of less than 1.5 days. All show extended radio…

太阳与恒星天体物理 · 物理学 2015-06-23 Sarah L. Smedley , Christopher A. Tout , Lilia Ferrario , Dayal T. Wickramasinghe