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Related papers: A 1.4-GHz Arecibo Survey for Pulsars in Globular C…

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We have used the Effelsberg 100-m radio telescope to conduct a 1400-MHz ($\lambda$ 21-cm) search for young and rapidly rotating radio pulsars along a 2 deg$^2$ strip of the northern Galactic plane defined by $28^{\circ} \leq l \leq…

Astrophysics · Physics 2007-05-23 D. R. Lorimer , M. Kramer , P. Mueller , N. Wex , A. Jessner , C. Lange , R. Wielebinski

We present the polarization pulse profiles for 28 pulsars observed with the Arecibo Observatory by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) timing project at 2.1 GHz, 1.4 GHz, and 430 MHz. These profiles…

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

The search for pulsars in a sample of pulsar candidates found based on a multi-year survey conducted with low (6 channels; sampling 0.1s) time-frequency resolution on declinations -9^o < \delta < +42^o was carried out. A Large Phased Array…

High Energy Astrophysical Phenomena · Physics 2022-10-26 S. A. Tyul'bashev , M. A. Kitaeva , G. E. Tyul'basheva

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…

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) is the most sensitive telescope at the $L$-band (1.0-1.5 GHz) and has been used to carry out the FAST Galactic Plane Pulsar Snapshot (GPPS) survey in the last 5 yr. Up to now,…

High Energy Astrophysical Phenomena · Physics 2025-02-03 J. L. Han , D. J. Zhou , C. Wang , W. Q. Su , Yi Yan , W. C. Jing , Z. L. Yang , P. F. Wang , T. Wang , J. Xu , N. N. Cai , J. H. Sun , Q. L. Yang , R. X. Xu , H. G. Wang , X. P. You

This thesis work is focused on the study of millisecond pulsars in globular cluster by using multi-wavelength observations obtained with radio and optical telescopes. Radio observations have been used to search for and timing the pulsars.…

High Energy Astrophysical Phenomena · Physics 2019-01-15 M. Cadelano

We have used the central 44 antennas of the new 64-dish MeerKAT radio telescope array to conduct a deep search for new pulsars in the core of nine globular clusters. This has led to the discovery of eight new millisecond pulsars in six…

More than 100 radio pulsars have been detected in 24 globular clusters. The largest observed samples are in Terzan 5 and 47 Tucanae, which together contain 45 pulsars. Accurate timing solutions, including positions in the cluster, are known…

Astrophysics · Physics 2007-05-23 Fernando Camilo , Frederic A. Rasio

We present the timing parameters of nine pulsars discovered in a survey of intermediate Galactic latitudes at 1400 MHz with the Parkes radio telescope. Eight of these pulsars possess small pulse periods and period derivatives thought to be…

Astrophysics · Physics 2009-11-06 R. T. Edwards , M. Bailes

In this dissertation, we estimate the population of different classes of BNS systems that are visible to gravitational-wave observatories. Given that no ultra-compact BNS systems have been discovered in pulsar radio surveys, we place a 95\%…

High Energy Astrophysical Phenomena · Physics 2020-08-12 Nihan Pol

We employed the Fast Folding Algorithm (FFA) on L-Band Globular Cluster (GC) observations taken with Five-hundred-meter Aperture Spherical radio Telescope (FAST) to search for new pulsars, especially those with a long rotational period. We…

We have conducted a GPU accelerated reprocessing of $\sim 87\%$ of the archival data from the High Time Resolution Universe South Low Latitude (HTRU-S LowLat) pulsar survey by implementing a pulsar search pipeline that was previously used…

We have searched 75 unidentified radio sources selected from the NRAO VLA Sky Survey (NVSS) catalog for the presence of rapidly spinning pulsars and short, dispersed radio bursts. The sources are radio bright, have no identifications or…

Solar and Stellar Astrophysics · Physics 2015-06-15 Deborah Schmidt , Fronefield Crawford , Glen Langston , Claire Gilpin

Globular clusters are highly efficient radio pulsar factories. These pulsars can be used as precision probes of the clusters' structure, gas content, magnetic field, and formation history; some of them are also highly interesting in their…

High Energy Astrophysical Phenomena · Physics 2015-01-05 J. W. T. Hessels , A. Possenti , M. Bailes , C. G. Bassa , P. C. C. Freire , D. R. Lorimer , R. Lynch , S. M. Ransom , I. H. Stairs

The Parkes Multibeam Pulsar Survey is the most successful survey of the Galactic plane ever performed, finding over 600 pulsars in the initial processing. We report on reprocessing of all 40,000 beams with a number of algorithms, including…

We conducted a drift-scan observation campaign using the 305-m Arecibo telescope in January and March 2020 when the observatory was temporarily closed during the intense earthquakes and the initial outbreak of the COVID-19 pandemic,…

Recent observations of the globular cluster 47 Tuc, made with the Parkes telescope at a wavelength of 20 cm, have resulted in the discovery of nine new millisecond pulsars, all in binary systems. The number of timing solutions available has…

In this work, we report the discovery and characterization of PSR J1411+2551, a new binary pulsar discovered in the Arecibo 327 MHz Drift Pulsar Survey. Our timing observations of the radio pulsar in the system span a period of about 2.5…

High Energy Astrophysical Phenomena · Physics 2018-04-03 J. G. Martinez , K. Stovall , P. C. C. Freire , J. S. Deneva , T. M. Tauris , A. Ridolfi , N. Wex , F. A. Jenet , M. A. McLaughlin , M. Bagchi