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Orbital parameters of binary radio pulsars reveal the history of the pulsars' formation and evolution including dynamic interactions with other objects. Advanced technology has enabled us to determine these orbital parameters accurately in…

太阳与恒星天体物理 · 物理学 2015-03-14 Manjari Bagchi

Millisecond pulsars are rapidly rotating neutron stars, and it is now widely accepted that their extremely short rotation periods result from the accretion of material from a companion star. Binary evolution theory predicts that millisecond…

太阳与恒星天体物理 · 物理学 2025-06-03 Shunyi Lan , Xiangcun Meng

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…

高能天体物理现象 · 物理学 2015-06-05 Yong Shao , Xiang-Dong Li

A millisecond pulsar (MSP) is an old neutron star (NS) that has accreted material from its companion star, causing it to spin up, which is known as the recycling scenario. During the mass transfer phase, the system manifests itself as an…

高能天体物理现象 · 物理学 2023-10-16 Shunyi Lan , Xiangcun Meng

Nearby companions alter the evolution of massive stars in binary systems. Using a sample of Galactic massive stars in nearby young clusters, we simultaneously measure all intrinsic binary characteristics relevant to quantify the frequency…

太阳与恒星天体物理 · 物理学 2012-11-21 H. Sana , S. E. de Mink , A. de Koter , N. Langer , C. J. Evans , M. Gieles , E. Gosset , R. G. Izzard , J. -B. Le Bouquin , F. R. N. Schneider

Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+0327, a radio pulsar with a rotational period of 2.15 ms in a…

The existence of millisecond pulsars with planet-mass companions (Bailes et al., 2011) in close orbits is challenging from the stellar evolution point of view. We calculate in detail the evolution of binary systems self-consistently,…

太阳与恒星天体物理 · 物理学 2015-06-05 O. G. Benvenuto , M. A. De Vito , J. E. Horvath

Millisecond pulsars are old neutron stars that have been spun up to high rotational frequencies via accretion of mass from a binary companion star. An important issue for understanding the physics of the early spin evolution of millisecond…

太阳与恒星天体物理 · 物理学 2012-02-21 Thomas M. Tauris

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

It is believed that the radio pulsars rotating at spin periods of about 30 millisecond or even lower got such high spins through the transfer of angular momentum by accreting matter from their binary companions (or past companions) in the…

高能天体物理现象 · 物理学 2025-07-28 Arpita Choudhary

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 examine the growing data set of binary millisecond pulsars that are thought to have a helium white dwarf companion. These systems are believed to form when a low- to intermediate-mass companion to a neutron star fills its Roche lobe…

太阳与恒星天体物理 · 物理学 2015-06-17 Sarah L. Smedley , Christopher A. Tout , Lilia Ferrario , Dayal T. Wickramasinghe

The statistical properties of planets in binaries were investigated. Any difference to planets orbiting single stars can shed light on the formation and evolution of planetary systems. As planets were found around components of binaries…

天体物理学 · 物理学 2009-11-11 S. Desidera , M. Barbieri

It is difficult to discover pulsars via their gamma-ray emission because current instruments typically detect fewer than one photon per million rotations. This creates a significant computing challenge for isolated pulsars, where the…

高能天体物理现象 · 物理学 2020-10-23 L. Nieder , B. Allen , C. J. Clark , H. J. Pletsch

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…

天体物理学 · 物理学 2009-06-23 Christopher J. Deloye

We have monitored a large sample of millisecond pulsars using the 100-m Effelsberg radio telescope in order to compare their radio emission properties to the slowly rotating population. With some notable exceptions, our findings suggest…

天体物理学 · 物理学 2009-10-30 M. Kramer , K. M. Xilouris , D. Lorimer , O. Doroshenko , A. Jessner , R. Wielebinski , A. Wolszczan , F. Camilo

In this paper we give the first attempt to model the evolution of the spectrum of PSR B1259$-$63 radio emission while the pulsar orbits the companion Be star. As suggested by Kijak et al. (Mon. Not. R. Astron. Soc. 418:L114, 2011a) this…

星系天体物理 · 物理学 2016-08-24 M. Dembska , J. Kijak , O. Koralewska , W. Lewandowski , G. Melikidze , K. Rożko

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

We present a model for pulsar radio eclipses in some binary systems, and test this model for PSRs B1957+20 and J2051-0827. We suggest that in these binaries the companion stars are degenerate dwarfs with strong surface magnetic fields. The…

天体物理学 · 物理学 2009-10-31 David Khechinashvili , George Melikidze , Janusz Gil

Aims. The mass discrepancy between the observed population of double neutron star binaries by radio pulsar observations and gravitational-wave observation requires an explanation. Methods. Binary population synthesis calculations are…

太阳与恒星天体物理 · 物理学 2020-07-22 Matthias U. Kruckow
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