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Millisecond pulsars (MSPs) are generally agreed to originate in low-mass X-ray binaries (LMXBs), in which mass transfer onto the neutron stars spins them up to their observed, fast rotation. The lack of MSPs and LMXBs rotating near break-up…

Astrophysics · Physics 2009-11-07 Andreas Reisenegger , Axel Bonacic

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

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

We study the statistics of 61 measured masses of neutron stars (NSs) in binary pulsar systems, including 18 double NS (DNS) systems, 26 radio pulsars (10 in our Galaxy) with white dwarf (WD) companions, 3 NSs with main-sequence companions,…

High Energy Astrophysical Phenomena · Physics 2015-05-20 C. M. Zhang , J. Wang , Y. H. Zhao , H. X. Yin , L. M. Song , D. P. Menezes , D. T. Wickramasinghe , L. Ferrario , P. Chardonnet

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…

Astrophysics · Physics 2007-05-23 T. M. Tauris , G. J. Savonije

Millisecond pulsars (MSPs) are thought to originate from low-mass X-ray binaries (LMXBs). The discovery of eclipsing radio MSPs including redbacks and black widows indicates that evaporation of the donor star by the MSP's irradiation takes…

High Energy Astrophysical Phenomena · Physics 2016-10-26 Kun Jia , Xiang-Dong Li

NGC 5024 (M53) is the most distant globular cluster (GC) with known pulsars. In this study, we report the discovery of a new binary millisecond pulsar PSR J1312+1810E (M53E) and present the new timing solutions for M53B to M53E, based on 22…

High Energy Astrophysical Phenomena · Physics 2023-07-19 Yujie Lian , Zhichen Pan , Haiyan Zhang , Paulo C. C. Freire , Shuo Cao , Lei Qian

The energetic, eclipsing millisecond pulsar J1816+4510 was recently discovered in a low-frequency radio survey with the Green Bank Telescope. With an orbital period of 8.7 hr and minimum companion mass of 0.16 Msun it appears to belong to…

A spinning neutron star (NS) that is asymmetric with respect to its spin axis can emit continuous gravitational wave (GW) signals. The spin frequencies and their distribution of radio millisecond pulsars (MSPs) and accreting MSPs provide…

High Energy Astrophysical Phenomena · Physics 2021-01-25 Wen-Cong Chen

PSR J1518+4904 is a recently discovered 40.9~ms pulsar in an 8.6 day, moderately eccentric orbit. We have measured pulse arrival times for this pulsar over 1.4~yr at several radio frequencies, from which we have derived high precision…

Astrophysics · Physics 2009-10-28 D. J. Nice , R. W. Sayer , J. H. Taylor

We have used the Green Bank Telescope to observe the millisecond pulsar PSR J0514-4002A on 43 occasions spread over 2 years. This 5-ms pulsar is located in the globular cluster NGC 1851; it belongs to a binary system and has a highly…

Astrophysics · Physics 2011-02-11 Paulo C. Freire , Scott M. Ransom , Yashwant Gupta

We review the main properties, demographics and applications of binary and millisecond radio pulsars. Our knowledge of these exciting objects has greatly increased in recent years, mainly due to successful surveys which have brought the…

Astrophysics · Physics 2015-05-13 D. R. Lorimer

We present timing observations of four millisecond pulsars, using data obtained over three years at the ATNF Parkes and NRAL Jodrell Bank radio telescopes. Astrometric, spin, and binary parameters are updated, and substantially improved for…

Astrophysics · Physics 2015-06-24 J. F. Bell , M. Bailes , R. N. Manchester , A. G. Lyne , F. Camilo , J. S. Sandhu

We present a scenario for the spin-up and evolution of binary millisecond pulsars. This can explain the observational properties of the recently discovered binary millisecond pulsar PSR J1740-5340, with orbital period 32.5 hrs, in the…

Astrophysics · Physics 2007-05-23 Luciano Burderi , Francesca D'Antona , Tiziana Di Salvo , Marta Burgay

Millisecond pulsars (MSPs) are observed to emit multi-wavelength radiation, from radio to GeV. Spider MSPs, which interact with their low-mass companion in close orbit (orbital periods $< 1$ day), may lead to strong intrabinary shocks that…

The standard formation theory of binary millisecond pulsars (BMSPs) predicts efficient orbital circularization due to tidal interaction during the previous mass transfer phase. Therefore, BMSPs are expected to have a circular orbit.…

High Energy Astrophysical Phenomena · Physics 2023-01-18 Wen-Shi Tang , Shi-Jie Gao , Xiang-Dong Li

High sensitivity radio searches of unassociated $\gamma$-ray sources have proven to be an effective way of finding new pulsars. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) during its commissioning phase, we have…

The monotonic increase of the radius of low mass stars during their ascent on the red giant branch halts when they suffer a temporary contraction. This occurs when the hydrogen burning shell reaches the discontinuity in hydrogen content…

Astrophysics · Physics 2009-11-13 F. D'Antona , P. Ventura , L. Burderi , T. Di Salvo , G. Lavagetto , A. Possenti , A. Teodorescu

PSR J1740-3052 is a young pulsar in orbit around a companion that is most likely a B-type main-sequence star. Since its discovery more than a decade ago, data have been taken at several frequencies with instruments at the Green Bank,…

High Energy Astrophysical Phenomena · Physics 2015-06-05 E. C. Madsen , I. H. Stairs , M. Kramer , F. Camilo , G. B. Hobbs , G. H. Janssen , A. G. Lyne , R. N. Manchester , A. Possenti , B. W. Stappers

Transitional millisecond pulsars (tMSPs) are old neutron stars spun up by accretion from a low-mass companion. These objects can switch between two emission regimes: rotation-powered radio pulsar and accreting X-ray pulsar. The origin of…

High Energy Astrophysical Phenomena · Physics 2026-04-22 Silvia Conforti , Luca Zampieri , Michele Fiori , Alessia Spolon , Giampiero Naletto , Aleksandr Burtovoi
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