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Related papers: New Millisecond Pulsars in Globular Clusters

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The first pulsar observations were made at Parkes on March 8, 1968, just 13 days after the publication of the discovery paper by Hewish and Bell. Since then, Parkes has become the world's most successful pulsar search machine, discovering…

Instrumentation and Methods for Astrophysics · Physics 2012-10-04 R. N. Manchester

We explore the enigmatic population of long-period, apparently non-recycled pulsars in globular clusters, building on recent work by Boyles et al (2011). This population is difficult to explain if it formed through typical core collapse…

High Energy Astrophysical Phenomena · Physics 2012-08-24 Ryan S. Lynch , Duncan R. Lorimer , Scott M. Ransom , Jason Boyles

The Parkes multibeam pulsar survey is covering a 10deg-wide strip of the southern Galactic plane from l=260deg to l=50deg. It utilizes a 13-beam receiver operating in the 20-cm band on the Parkes 64-m radio telescope and is much more…

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 investigate the number and type of pulsars that will be discovered with the low-frequency radio telescope LOFAR. We consider different search strategies for the Galaxy, for globular clusters and for other galaxies. We show that a 25-day…

Astrophysics of Galaxies · Physics 2015-05-14 Joeri van Leeuwen , Ben Stappers

First observations for the Parkes Pulsar Timing Array project were carried out in February 2004. The project is ongoing and we currently observe approximately every three weeks. The data have led to numerous scientific results on topics as…

Instrumentation and Methods for Astrophysics · Physics 2012-10-04 G. Hobbs

The launch of several sensitive X-ray and gamma-ray instruments during the last decade heralded a new era in the research of millisecond pulsars. The current number of millisecond pulsars detected in the X-ray spectral window is about 30,…

Astrophysics · Physics 2007-05-23 L. Kuiper , W. Hermsen

We report the results of a survey of the Small Magellanic Cloud (SMC) for radio pulsars conducted with the 20-cm multibeam receiver of the Parkes 64-meter telescope. This survey targeted a more complete region of the SMC than a previous…

Astrophysics · Physics 2008-11-26 F. Crawford , V. M. Kaspi , R. N. Manchester , A. G. Lyne , F. Camilo , N. D'Amico

The majority of Galactic high-energy gamma-ray sources continue to elude identification. Currently, we have a handful of firm pulsar identifications, one of which is radio quiet, and a few marginal detections, including one millisecond…

Astrophysics · Physics 2007-05-23 Mallory S. E. Roberts

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

The most massive globular cluster in our Galaxy, Omega Centauri, is an interesting target for pulsar searches, because of its multiple stellar populations and the intriguing possibility that it was once the nucleus of a galaxy that was…

We report on observations of four southern Anomalous X-ray Pulsars, (1RXS J170849.0-400910, 1E 1048.1-5937, 1E 1841-045 and AX J1845-0258), obtained at 1.4 GHz using the Parkes radio telescope. Radio pulsations from these sources have been…

Astrophysics · Physics 2009-11-11 M. Burgay , N. Rea , G. L. Israel , A. Possenti , L. Burderi , T. Di Salvo , N. D'Amico , L. Stella

Absolute proper motions for six new globular clusters have recently been determined. This motivated us to obtain the Galactic orbits of these six clusters both in an axisymmetric Galactic potential and in a barred potential, such as the one…

Astrophysics · Physics 2009-11-13 Christine Allen , Edmundo Moreno , Barbara Pichardo

We discovered four millisecond pulsars (MSPs) in searches of 80 $\gamma$-ray sources conducted from 2015 to 2017 with the Murriyang radio telescope of the Parkes Observatory. We provide an overview of the survey and focus on the results of…

We present the discovery of eight new radio pulsars located in the Large Magellanic Cloud (LMC). Five of these pulsars were found from reprocessing the Parkes Multibeam Survey of the Magellanic Clouds, while the remaining three were from an…

We present a comprehensive census of X-ray millisecond pulsars (MSPs) in 29 Galactic globular clusters (GCs), including 68 MSPs with confirmed X-ray luminosities and 107 MSPs with X-ray upper limits. We compile previous X-ray studies of GC…

High Energy Astrophysical Phenomena · Physics 2022-03-02 Jiaqi Zhao , Craig O. Heinke

Pulsar timing array projects are carrying out high precision observations of millisecond pulsars with the aim of detecting ultra-low frequency (~ 10^{-9} to 10^{-8} Hz) gravitational waves. We show how unambiguous detections of such waves…

Solar and Stellar Astrophysics · Physics 2015-05-19 George Hobbs

We report the discovery of three new pulsars in the Globular Cluster (GC) NGC6517, namely NGC 6517 E, F, and G, made with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The spin periods of NGC 6517 E, F, and G are…

High Energy Astrophysical Phenomena · Physics 2021-08-18 Zhichen Pan , Xiaoyun Ma , Lei Qian , Lin Wang , Zhen Yan , Jintao Luo , Scott M. Ransom , Duncan R. Lorimer , Peng Jiang

Observations show that globular clusters might be among the best places to find millisecond pulsars. However, the globular cluster Terzan 6 seems to be an exception without any pulsar discovered, although its high stellar encounter rate…

High Energy Astrophysical Phenomena · Physics 2024-10-03 Shi-Jie Gao , Yi-Xuan Shao , Pei Wang , Ping Zhou , Xiang-Dong Li , Lei Zhang , Joseph W. Kania , Duncan R. Lorimer , Di Li

This paper describes the new Globular Clusters GMRT Pulsar Search (GCGPS) survey. This survey aims to find MSPs in the globular clusters (GCs) of the Milky Way using uGMRT. The observations use the uGMRT's Band-4 (550$-$750 MHz) and Band-3…

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