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Many of the characteristic properties of the millisecond pulsars found in globular clusters are markedly different from those in the Galactic disc. We find that one such physical parameter is the surface magnetic field strength. Even though…

Solar and Stellar Astrophysics · Physics 2015-05-19 Sushan Konar

The cumulative luminosity distribution functions (CLFs) of radio millisecond pulsars (MSPs) in globular clusters (GCs) and in the Galactic field at a frequency of 1.4 GHz have been examined. Assuming a functional form, $N \propto L^q$ where…

High Energy Astrophysical Phenomena · Physics 2015-05-18 C. Y. Hui , K. S. Cheng , Ronald E. Taam

Globular clusters (GCs) are evolved stellar systems containing entire populations of millisecond pulsars (MSPs), which are efficient gamma-ray emitters. Observations of this emission can be used as a powerful tool to explore the dynamical…

High Energy Astrophysical Phenomena · Physics 2019-04-10 Raniere de Menezes , Fabio Cafardo , Rodrigo Nemmen

Millisecond pulsars (MSPs) are neutron stars with spin periods as short as a few milliseconds, formed through mass accretion from companion stars. In the dense environments of globular clusters (GCs), MSPs are likely to originate through…

High Energy Astrophysical Phenomena · Physics 2025-11-13 Yuzhe Song , Debatri Chattopadhyay , Jarrod Hurley , Rainer Spurzem , Francesco Flammini Dotti , Kai Wu

Over a hundred millisecond radio pulsars (MSPs) have been observed in globular clusters (GCs), motivating theoretical studies of the formation and evolution of these sources through stellar evolution coupled to stellar dynamics. Here we…

High Energy Astrophysical Phenomena · Physics 2019-06-12 Claire S. Ye , Kyle Kremer , Sourav Chatterjee , Carl L. Rodriguez , Frederic A. Rasio

In this paper, I review some of the basic properties of the pulsar population in globular clusters (GCs) and compare it with the the Galactic disk population. The neutron stars (NSs) in GCs were likely formed - and appear to continue…

Astrophysics of Galaxies · Physics 2015-06-11 Paulo C. C. Freire

The high resolution X-ray imaging and broad-band moderate resolution spectra enabled by the ACIS cameras on the Chandra X-ray Observatory have opened a new window in our study of millisecond pulsars (MSPs). Given the large excess of MSPs in…

Astrophysics · Physics 2007-05-23 Jonathan E. Grindlay

Millisecond pulsars (MSPs) are abundant in globular clusters (GCs), which offer favorable environments for their creation. While the advent of recent, powerful facilities led to a rapid increase in MSP discoveries in GCs through pulsation…

High Energy Astrophysical Phenomena · Physics 2024-05-27 Joanna Berteaud , Christopher Eckner , Francesca Calore , Maïca Clavel , Daryl Haggard

We present a statistical study of pulsars and millisecond pulsars (MSPs) based on multiwavelength observations in the Galactic Field and Globular Clusters. We examine their emission properties, timing behavior, and spatial distributions,…

High Energy Astrophysical Phenomena · Physics 2026-02-10 Maria Rah , Areg Mickaelian , Francesco Flammini Dotti , Rainer Spurzem

Millisecond pulsars (MSPs) are faint X-ray sources commonly observed in Galactic globular clusters (GCs). In this work, we investigate 18 MSPs newly found in the GC Omega Centauri ($\omega$ Cen) and search for their X-ray counterparts using…

High Energy Astrophysical Phenomena · Physics 2023-09-26 Jiaqi Zhao , Craig O. Heinke

Millisecond pulsars (MSPs) are short-period pulsars that are distinguished from "normal" pulsars, not only by their short period, but also by their very small spin-down rates and high probability of being in a binary system. These…

High Energy Astrophysical Phenomena · Physics 2017-10-04 R. N. Manchester

We use data from the MeerTime project on the MeerKAT telescope to ask whether the radio emission properties of millisecond pulsars (MSPs) and slowly rotating, younger pulsars (SPs) are similar or different. We show that the flux density…

High Energy Astrophysical Phenomena · Physics 2024-07-10 A. Karastergiou , S. Johnston , B. Posselt , L. S. Oswald , M. Kramer , P. Weltevrede

Globular clusters with their large populations of millisecond pulsars (MSPs) are believed to be potential emitters of high-energy gamma-ray emission. Our goal is to constrain the millisecond pulsar populations in globular clusters from…

Astrophysics of Galaxies · Physics 2015-05-18 The Fermi LAT collaboration

In this study, we investigate the contribution of millisecond pulsars (MSPs) to the gamma-ray excess observed in the Galactic Center by analyzing data from high-resolution direct N-body simulations of six globular clusters (GCs) that…

High Energy Astrophysical Phenomena · Physics 2024-10-22 Dana Kuvatova , Taras Panamarev , Maryna Ishchenko , Anton Gluchshenko , Peter Berczik

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

Using archival {\it Fermi}-LAT data with a time span of $\sim12$ years, we study the population of Millisecond Pulsars (MSPs) in Globular Clusters (GlCs) and investigate their dependence on cluster dynamical evolution in the Milky Way…

Astrophysics of Galaxies · Physics 2024-01-30 Li Feng , Zhongqun Cheng , Wei Wang , Zhiyuan Li , Yang Chen

Understanding the physics of rotation-powered millisecond pulsars (MSPs) presents a number of challenges compared to that of the non-recycled pulsar population. Even though their fast rotation rates can produce high spin-down power and…

High Energy Astrophysical Phenomena · Physics 2022-04-06 Alice K. Harding

We study the gamma-ray spectra of 30 globular clusters (GCs) thus far detected with the Fermi Gamma-ray Space Telescope. Presuming that gamma-ray emission of a GC comes from millisecond pulsars (MSPs) contained in, a model that generates…

High Energy Astrophysical Phenomena · Physics 2022-03-14 Wei Wu , Zhongxiang Wang , Yi Xing , Pengfei Zhang

To track the formation and evolution links of the millisecond pulsars (MSPs) powered by accretion and rotation in the Galactic field, we investigate the spin period (P) and spin-down power (Edot) distributions of the MSPs observed at the…

High Energy Astrophysical Phenomena · Physics 2019-10-21 De-Hua Wang , Cheng-Min Zhang , Shuang-Qiang Wang

The lack of detected pulsars at the Galactic Center (GC) region is a long-standing mystery. We argue that the high stellar density in the central parsec around the GC is likely to result in a pulsar population dominated by millisecond…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Jean-Pierre Macquart , Nissim Kanekar
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