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Related papers: Millisecond Pulsar Velocities

200 papers

We use astrometric, distance and spindown data on pulsars to: (1) estimate three-dimensional velocity components, birth distances from the galactic plane, and ages of individual objects; (2) determine the distribution of space velocities…

Astrophysics · Physics 2016-08-30 J. M. Cordes , David F. Chernoff

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…

High Energy Astrophysical Phenomena · Physics 2025-05-23 Thomas Donlon , Sukanya Chakrabarti , Sophia Vanderwaal , Lawrence M. Widrow , Scott Ransom , Enrico Ramirez-Ruiz

Spin period distribution provides important clues to understand the formation of millisecond pulsars (MSPs). To uncover the intrinsic period distribution, we analyze three samples of radio MSPs in the Galactic field and in globular…

High Energy Astrophysical Phenomena · Physics 2025-03-31 Xiao-Jin Liu , Zhi-Qiang You , Zu-Cheng Chen , Shen-Shi Du , Ang Li , Xing-Jiang Zhu

High cadence, multi-wavelength observations and simulations are employed for the analysis of solar photospheric magnetic bright points (MBPs) in the quiet Sun. The observations were obtained with the Rapid Oscillations in the Solar…

Solar and Stellar Astrophysics · Physics 2015-06-11 P. H. Keys , M. Mathioudakis , D. B. Jess , S. Shelyag , D. J. Christian , F. P. Keenan

We revisit the population of normal pulsars in the Galactic field in an `evolutionary' approach. By comparing the distributions of various parameters of synthetic pulsars detectable by the Parkes Multibeam Pulsar Survey, the Pulsar Arecibo…

High Energy Astrophysical Phenomena · Physics 2020-12-25 Anirban Chakraborty , Manjari Bagchi

We report on the follow-up observations of circularly polarized sources identified in the MeerKAT image-based survey of the Galactic bulge. Using the Parkes radio telescope, we observed sixteen circularly polarized sources with the UWL…

High Energy Astrophysical Phenomena · Physics 2026-03-17 Rahul Sengar , Akash Anumarlapudi , David L. Kaplan , Dale A. Frail , Scott D. Hyman , Emil Polisensky

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…

Using the nine-year radio-pulsar timing data set from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), collected at Arecibo Observatory and the Green Bank Telescope, we have measured the positions, proper…

This paper presents an investigation of spectral properties of 10 millisecond pulsars (MSPs) discovered by the uGMRT, observed from 2017-2023 using band 3 (300-500 MHz) and 4 (550-750 MHz) of uGMRT. For these MSPs, we have reported a range…

High Energy Astrophysical Phenomena · Physics 2024-08-15 Rahul Sharan , Bhaswati Bhattacharyya , Sangita Kumari , Jayanta Roy , Ankita Ghosh

In this paper we review the recent discovery of several millisecond pulsars (MSPs) in eccentric binary systems. Timing these MSPs we were able to estimate (and in one case precisely measure) their masses. These results suggest that, as a…

Solar and Stellar Astrophysics · Physics 2009-07-21 Paulo C. C. Freire

We investigate the birth and evolution of isolated radio pulsars using a population synthesis method, modeling the birth properties of the pulsars, their time evolution, and their detection in the Parkes and Swinburne Multibeam (MB)…

Astrophysics · Physics 2007-10-25 C. -A. Faucher-Giguere , V. M. Kaspi

In this paper we present the first observations of a large sample of millisecond pulsars at frequencies of 2.7 GHz and 4.9 GHz. Our new flux measurements extend the known spectra for millisecond pulsars to the highest frequencies to date.…

Astrophysics · Physics 2009-10-31 M. Kramer , C. Lange , D. R. Lorimer , D. C. Backer , K. M. Xilouris , A. Jessner , R. Wielebinski

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

We have performed a systematic study of the rotational, orbital and X-ray properties of millisecond pulsars (MSPs) in globular clusters (GCs) and compared their nature with those of the MSPs in the Galactic field (GF). We found that GC MSPs…

High Energy Astrophysical Phenomena · Physics 2023-03-08 Jongsu Lee , C. Y. Hui , J. Takata , A. K. H. Kong , Pak-Hin Thomas Tam , Kwan-Lok Li , K. S. Cheng

(Abridged) We infer the velocity distribution of radio pulsars by modelling their birth, evolution, and detection in large-scale 0.4 GHz pulsar surveys, and by comparing model distributions of measurable pulsar properties with survey data…

Astrophysics · Physics 2009-11-06 Z. Arzoumanian , D. F. Chernoff , J. M. Cordes

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

Radio pulsars are often used as clocks in a wide variety of experiments. Imperfections in the clock, known as timing noise, have the potential to reduce the significance of, or even thwart e.g. the attempt to find a stochastic gravitational…

High Energy Astrophysical Phenomena · Physics 2019-06-26 Nakornping Namkham , Phrudth Jaroenjittichai , Simon Johnston

We have timed four millisecond pulses, PSRs J1721-2457, J1745-0952, J1810-2005, and J1918-0642, for up to a total of 10.5 years each using multiple telescopes in the European Pulsar Timing Array network: the Westerbork Synthesis Radio…

High Energy Astrophysical Phenomena · Physics 2015-05-18 G. H. Janssen , B. W. Stappers , C. G. Bassa , I. Cognard , M. Kramer , G. Theureau

Searches for millisecond pulsars (which we here loosely define as those with periods $<$ 20 ms) in the Galactic field have undergone a renaissance in the past five years. New or recently refurbished radio telescopes utilizing cooled…

Astrophysics of Galaxies · Physics 2015-06-16 K. Stovall , D. R. Lorimer , R. S Lynch

The recent discovery of a population of eccentric (e ~ 0.1) millisecond pulsar (MSP) binaries with low-mass white dwarf companions in the Galactic field represents a challenge to evolutionary models that explain MSP formation as recycling:…

High Energy Astrophysical Phenomena · Physics 2016-12-21 E. D. Barr , P. C. C. Freire , M. Kramer , D. J. Champion , M. Berezina , C. G. Bassa , A. G. Lyne , B. W. Stappers