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We analyzed 186 binary pulsars (BPSRs) in the magnetic field versus spin period (B-P) diagram, where their relations to the millisecond pulsars (MSPs) can be clearly shown. Generally, both BPSRs and MSPs are believed to be recycled and…

高能天体物理现象 · 物理学 2013-04-10 Pan Yuanyue , Wang Na , Zhang Chengmin

We study the process of dynamical capture of a millisecond pulsar (MSP) by a single or binary IMBH, simulating various types of single-binary and binary-binary encounters. It is found that [IMBH,MSP] binaries form over cosmic time in a…

天体物理学 · 物理学 2009-11-13 B. Devecchi , M. Colpi , M. Mapelli , A. Possenti

We summarize the channels formation of neutron stars (NS) in single or binary evolution and the classic recycling scenario by which mass accretion by a donor companion accelerates old NS to millisecond pulsars (MSP). We consider the…

高能天体物理现象 · 物理学 2020-11-24 Francesca D'Antona , Marco Tailo

We present a general method for determining the masses and orbital parameters of binary millisecond pulsars with long orbital periods (P_orb >> 1 yr), using timing data in the form of pulse frequency derivatives. We apply our method to…

天体物理学 · 物理学 2009-10-28 K. J. Joshi , F. A. Rasio

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

We present a novel method that enables us to estimate the acceleration of individual millisecond pulsars (MSPs) using only their spin period and its time derivative. For our binary MSP sample, we show that one can obtain an empirical…

高能天体物理现象 · 物理学 2025-05-23 Thomas Donlon , Sukanya Chakrabarti , Sophia Vanderwaal , Lawrence M. Widrow , Scott Ransom , Enrico Ramirez-Ruiz

According to the recycling model, neutron stars in low-mass X-ray binaries were spun up to millisecond pulsars (MSPs), which indicates that all MSPs in the Galactic plane ought to be harbored in binaries. However, about $20\%$ Galactic…

高能天体物理现象 · 物理学 2020-01-15 Long Jiang , Na Wang , Wen-Cong Chen , Xiang-Dong Li , Wei-Min Liu , Zhi-Fu Gao

During the motion of a binary pulsar around the Galactic center, the pulsar and its companion experience a wind of dark-matter particles that can affect the orbital motion through dynamical friction. We show that this effect produces a…

高能天体物理现象 · 物理学 2015-12-31 Paolo Pani

A very recent and meticulous timing effort suggests that an eccentric millisecond pulsar (eMSP) binary, namely PSR J1618-3921, is likely to be a part of a hierarchical triple (HT) system with a $0.6M_{\odot}$ companion in a $\sim 300$yr…

星系天体物理 · 物理学 2025-12-03 Adya Shukla , A. Gopakumar , Paramasivan Arumugam

Compact binary millisecond pulsars (MSPs) with orbital periods $\lesssim1$d are key to understanding binary evolution involving massive neutron stars (NSs). Due to the ablation of the companion by the rapidly spinning pulsar, these systems…

高能天体物理现象 · 物理学 2025-01-31 Devina Misra , Manuel Linares , Claire S. Ye

We model millisecond pulsars winds colliding with radiatively-driven companion winds in black widow and redback systems. For the redbacks, the geometry of this intrabinary shock (IBS) is quite sensitive to the expected equatorial…

高能天体物理现象 · 物理学 2019-07-17 D. Kandel , Roger W. Romani , Hongjun An

We have made polarimetric monitoring observations of millisecond pulsars visible from the northern hemisphere at 1410 MHz. Their emission properties are compared with those of normal pulsars. Although we demonstrated in paper I that…

We present 2.5D radiation-hydrodynamics simulations of the accretion-induced collapse (AIC) of white dwarfs, starting from 2D rotational equilibrium configurations of a 1.46-Msun and a 1.92-Msun model. Electron capture leads to the collapse…

天体物理学 · 物理学 2009-11-11 Luc Dessart , Adam Burrows , Christian Ott , Eli Livne , Sung-Chul Yoon , Norbert Langer

Millisecond pulsars (MSPs) are laboratories for stellar evolution, strong gravity, and ultra-dense matter. Although MSPs are thought to originate in low-mass X-ray binaries (LMXBs), approximately 27% lack a binary companion, and others are…

高能天体物理现象 · 物理学 2025-03-12 S. Chanlaridis , D. Ohse , D. E. Alvarez-Castillo , J. Antoniadis , D. Blaschke , V. Danchev , N. Langer , D. Misra

Short-period binary star systems dissipate orbital energy through tidal interactions that lead to tighter, more circular orbits. When at least one star in a binary has evolved off of the main sequence, orbital circularization occurs for…

太阳与恒星天体物理 · 物理学 2018-10-31 Adrian M. Price-Whelan , Jeremy Goodman

This second paper in our series investigates the evolutionary mechanisms that shape pulsars and millisecond pulsars (MSPs) across different astrophysical environments. We focus on the physical processes that govern spin evolution, magnetic…

高能天体物理现象 · 物理学 2026-02-10 Maria Rah , Rainer Spurzem , Francesco Flammini Dotti , Areg Mickaelian

Binary millisecond pulsars with a massive white dwarf (WD) companion are intermediate-mass binary pulsars (IMBPs). They are formed via the Case BB Roche-lobe overflow evolution channel if they are in compact orbits with an orbital period of…

高能天体物理现象 · 物理学 2025-02-03 Z. L. Yang , J. L. Han , T. Wang , P. F. Wang , W. Q. Su , W. C. Chen , C. Wang , D. J. Zhou , Y. Yan , W. C. Jing , N. N. Cai , L. Xie , J. Xu , H. G. Wang , R. X. Xu

Four evolutionary channels leading to the formation of wide binary millisecond pulsars are investigated. The majority of binary millisecond pulsars are found to descend from systems in which the most massive component undergoes a…

天体物理学 · 物理学 2009-11-07 B. Willems , U. Kolb

Rotation-powered millisecond radio pulsars have been spun up to their present spin period by a $10^8$ - $10^9$ yr long X-ray-bright phase of accretion of matter and angular momentum in a low-to-intermediate mass binary system. Recently, the…

高能天体物理现象 · 物理学 2015-06-19 A. Papitto , D. F. Torres , N. Rea , T. Tauris

In this work, we investigate the dynamical effects of a sequence of close encounters over 200 Myr varying in the interval of 10000 -- 100000 au between a binary star system and passing stars with masses ranging from 0.1$M_{\odot}$ to…

地球与行星天体物理 · 物理学 2023-06-14 David Bancelin , Thomas Nordlander , Elke Pilat-Lohinger , Birgit Loibnegger