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Related papers: Millisecond Pulsar Ages: Implications of Binary Ev…

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Pulsars have long been studied in the electromagnetic spectrum. Their environments are rich in high-energy cosmic-ray electrons and positrons likely enriching the interstellar medium with such particles. In this work we use recent…

High Energy Astrophysical Phenomena · Physics 2022-01-26 Ilias Cholis , Iason Krommydas

There is observational evidence of a dearth in core-collapse supernova (ccSN) explosions from stars with zero age main sequence (ZAMS) mass M_0~17-30 Msol, referred to as the 'red supergiant problem'. However, simulations now predict that…

Solar and Stellar Astrophysics · Physics 2019-12-19 P. Schady , J. J. Eldridge , J. Anderson , T. -W. Chen , L. Galbany , H. Kuncarayakti , L. Xiao

For about half a century the radio pulsar population was observed to spin in the ~0.002-12s range, with different pulsar classes having a spin-period evolution that differs substantially depending on their magnetic fields or past accretion…

High Energy Astrophysical Phenomena · Physics 2022-08-17 Michele Ronchi , Nanda Rea , Vanessa Graber , Natasha Hurley-Walker

Basic ideas about the torques on the neutron star and the existence of an equilibrium rotation period followed from the recognition that most X-ray binaries contain accretion powered neutron stars. The evolution of binaries through a phase…

Astrophysics · Physics 2009-11-13 M. Ali Alpar

A unified strategy is developed that can be used to search for millisecond pulsars (MSPs) with ~solar mass companions (including neutron star companions in double neutron star binaries [DNSBs]) belonging to both very short period binaries,…

Astrophysics · Physics 2007-05-23 John Middleditch

The number of millisecond pulsars (MSPs) observed in Milky Way globular clusters has increased explosively in recent years, but the underlying population is still uncertain due to observational biases. We use state-of-the-art $N$-body…

High Energy Astrophysical Phenomena · Physics 2022-12-07 Claire S. Ye , Giacomo Fragione

Age is a fundamental stellar property, yet for many stars it is difficult to reliably determine. For M dwarfs it has been notoriously so. Due to their lower masses, core hydrogen fusion proceeds at a much slower rate in M dwarfs than it…

Solar and Stellar Astrophysics · Physics 2023-08-31 Scott G. Engle , Edward F. Guinan

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…

High Energy Astrophysical Phenomena · Physics 2020-01-15 Long Jiang , Na Wang , Wen-Cong Chen , Xiang-Dong Li , Wei-Min Liu , Zhi-Fu Gao

In this third paper of a series on the precision of obtaining ages of stellar populations using the full spectrum fitting technique, we examine the precision of this technique in deriving possible age spreads within a star cluster. We test…

Astrophysics of Galaxies · Physics 2021-05-12 Randa Asa'd , Paul Goudfrooij , A. M. As'ad , H. G. El-Mir , L. Begum , A. Aljasmi , O. Almatroushi

Millisecond pulsars (MSPs) are thought to born in low-mass X-ray binaries when the neutron star has gained enough angular momentum from the accreting materials of its companion star. It is generally believed that a radio MSP is born when…

High Energy Astrophysical Phenomena · Physics 2014-12-17 P. H. T. Tam , K. L. Li , A. K. H. Kong , J. Takata , G. C. K. Leung , K. S. Cheng , C. Y. Hui

Transitional millisecond pulsars (tMSPs) switch, on roughly multi-year timescales, between rotation-powered radio millisecond pulsar (RMSP) and accretion-powered low-mass X-ray binary (LMXB) states. The tMSPs have raised several questions…

Observations of millisecond pulsars (MSPs) at low radio frequencies play an important role in understanding the Galactic pulsar population and characterising both their emission properties and the effects of the ionised interstellar medium…

High Energy Astrophysical Phenomena · Physics 2025-08-15 C. P. Lee , N. D. R. Bhat , B. W. Meyers , S. J. McSweeney , W. van Straten , C. M. Tan , M. Xue , N. A. Swainston , S. M. Ord , G. Sleap , S. E. Tremblay , A. Williams

According to the recycling scenario, millisecond pulsars (MSPs) have evolved from low-mass X-ray binaries (LMXBs). Their orbits are expected to be circular due to tidal interactions during the binary evolution, as observed in most of the…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Long Jiang , Xiang-Dong Li , Jishnu Dey , Mira Dey

We present a large sample of high-precision, coherently-dedispersed polarization profiles of millisecond pulsars (MSPs) at frequencies between 410 and 1414 MHz. These data include the first polarimetric observations of several of the…

Astrophysics · Physics 2009-10-31 I. H. Stairs , S. E. Thorsett , F. Camilo

Millisecond pulsar + helium white dwarf (MSP+He WD) binaries are thought to have descended from neutron star (NS) low-mass X-ray binaries (LMXBs). The NSs accreted from the progenitors of the WDs and their spin periods were accordingly…

High Energy Astrophysical Phenomena · Physics 2024-08-30 Zhe Cui , Xiang-Dong Li

We present a grid of evolutionary tracks for low-mass white dwarfs with helium cores in the mass range from 0.179 to 0.414 M_sun. The lower mass limit is well suited for comparison with white dwarf companions of millisecond pulsars (MSP).…

Astrophysics · Physics 2007-05-23 T. Driebe , T. Bloecker , D. Schoenberner

Accurate stellar ages are essential for our understanding of the star formation history of the Milky Way, Galactic chemical evolution, and to constrain exoplanet formation models. Gyrochronology, a relationship between stellar rotation and…

Solar and Stellar Astrophysics · Physics 2022-05-11 Tomomi Otani , Ted von Hippel , Derek Buzasi , T. D. Oswalt , Alexander Stone-Martinez , Patrice Majewski

Spider pulsars are systems in which a millisecond pulsar (MSP) tightly orbits (Pb $\lesssim$ 1 day) a low mass (mc $\lesssim$ 0.5 M$_\odot$) semi-degenerate star. Spider often display eclipses around superior conjunction. This eclipse…

High Energy Astrophysical Phenomena · Physics 2025-06-18 Clara Blanchard , Lucas Guillemot , Guillaume Voisin , Ismaël Cognard , Gilles Theureau

Millisecond pulsars (MSPs) are generally believed to be old neutron stars (NSs) which have been spun up to high rotation rates via accretion of matter from a companion star in a low-mass X-ray binary (LMXB). However, many details of this…

Solar and Stellar Astrophysics · Physics 2014-11-11 Alina Istrate , Thomas Tauris , Norbert Langer

Eccentric millisecond pulsar + helium white dwarf (MSP + He WD) systems have attracted increasing attention, with the rotationally delayed accretion-induced collapse (RD-AIC) scenario proposed as a possible formation channel. Given the…

High Energy Astrophysical Phenomena · Physics 2026-04-08 Xiangcun Meng
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