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Related papers: Radio Pulsars in Terzan 5

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IGR J17480$-$2446 is an accreting X-ray pulsar in a low-mass X-ray binary harbored in the Galactic globular cluster Terzan 5. Compared with other accreting millisecond pulsars, IGR J17480$-$2446 is peculiar in its low spin frequency (11…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Long Jiang , Xiang-Dong Li

In this paper we study a set of twelve pulsars that previously had not been characterized. Our timing shows that eleven of them are "normal" isolated pulsars, with rotation periods between 0.22 and 2.65 s, characteristic ages between 0.25…

High Energy Astrophysical Phenomena · Physics 2017-12-27 Casey Brinkman , Paulo Freire , Joanna Rankin , Kevin Stovall

We present timing observations of four millisecond pulsars, using data obtained over three years at the ATNF Parkes and NRAL Jodrell Bank radio telescopes. Astrometric, spin, and binary parameters are updated, and substantially improved for…

Astrophysics · Physics 2015-06-24 J. F. Bell , M. Bailes , R. N. Manchester , A. G. Lyne , F. Camilo , J. S. Sandhu

Here we report on a new survey for pulsars and transients in the 10 pc region around Sgr A* using the Effelsberg radio telescope at frequencies between 4 to 8 GHz. Our calibrated full-Stokes data were searched for pulsars and transients…

High Energy Astrophysical Phenomena · Physics 2026-02-11 G. Desvignes , R. P. Eatough , Y. Men , F. Abbate , R. Karuppusamy , M. Kramer , K. Liu , L. Shao , P. Torne , R. S. Wharton

Some globular clusters in our Galaxy are noticeably rich in low-mass X-ray binaries. Terzan 5 has the richest population among globular clusters of X- and radio-pulsars and low-mass X-ray binaries. The detection and study of optical/IR…

Solar and Stellar Astrophysics · Physics 2012-11-01 V. Testa , T. di Salvo , F. D'Antona , M. T. Menna , P. Ventura , L. Burderi , A. Riggio , R. Iaria , A. D'Ai' , A. Papitto , N. Robba

We have conducted a search of 19 southern Galactic globular clusters for sub-millisecond pulsars at 660 MHz with the Parkes 64-m radio telescope. To minimize dispersion smearing we used the CPSR baseband recorder, which samples the 20 MHz…

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

We propose a pulsar candidate cross matching algorithm to sift radio pulsar search candidates from repeated observations of the same sky location such as globular clusters, high energy sources, or supernova remnants. Our method uses both…

High Energy Astrophysical Phenomena · Physics 2026-03-12 Qiuyu Yu , Yujie Wang , Zhichen Pan , Zhongli Zhang , Lei Qian , Zhongzu Wu , Ralph P. Eatough , Dejiang Yin , Baoda Li , Yujie Chen , Yinfeng Dai , Yifeng Li

We report the discovery of a new 5.78 ms-period millisecond pulsar (MSP), PSR J1740-5340B (NGC 6397B), in an eclipsing binary system discovered with the Parkes radio telescope (now also known as Murriyang), Australia, and confirmed with the…

We present phase-connected timing ephemerides, polarization pulse profiles and Faraday rotation measurements of 12 pulsars discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in the Commensal Radio Astronomy FAST…

We describe an ongoing search for pulsars and dispersed pulses of radio emission, such as those from rotating radio transients (RRATs) and fast radio bursts (FRBs), at 350 MHz using the Green Bank Telescope. With the Green Bank Ultimate…

We report the discovery of a new pulsar PSR J1839+15, having a period of 549 ms and a DM of 68 pc-cm^-3. We also present its timing solution and report the intermittent behaviour of its radio emission.

Solar and Stellar Astrophysics · Physics 2016-05-30 M. P. Surnis , B. C. Joshi , M. A. McLaughlin , V. Gajjar

PSR J1518+4904 is a recently discovered 40.9~ms pulsar in an 8.6 day, moderately eccentric orbit. We have measured pulse arrival times for this pulsar over 1.4~yr at several radio frequencies, from which we have derived high precision…

Astrophysics · Physics 2009-10-28 D. J. Nice , R. W. Sayer , J. H. Taylor

Terzan 5 is a Galactic globular cluster exhibiting prominent X-ray and gamma-ray emission. Following the discovery of extended X- ray emission in this object, we explore here archival data at several wavelengths for other unexpected…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Andre-Claude Clapson , Wilfried Domainko , Marek Jamrozy , Michal Dyrda , Peter Eger

Terzan 5 is the only Galactic globular cluster that has plausibly been detected at very-high energies by the High Energy Stereoscopic System. It has an unexpectedly asymmetric very-high-energy morphology that is offset from the cluster…

High Energy Astrophysical Phenomena · Physics 2019-07-31 Hambeleleni Ndiyavala , Christo Venter , Tyrel J. Johnson , Alice K. Harding , David A. Smith , Peter Eger , Andreas Kopp , Johan van Der walt

PSR J1024$-$0719 is a millisecond pulsar that was long thought to be isolated. However, puzzling results concerning its velocity, distance, and low rotational period derivative have led to reexamination of its properties. We present updated…

A large number of pulsars and X-rays sources are detected in globular clusters. To understand the structure and content of these clusters, accurate distances are required. We derive the distances of Terzan 5, Liller 1 and UKS 1 using as a…

Astrophysics · Physics 2009-11-13 S. Ortolani , B. Barbuy , E. Bica , M. Zoccali , A. Renzini

We report the discovery of PSR J1747-2958, a radio pulsar with period P = 98 ms and dispersion measure DM = 101 pc/cc, in a deep observation with the Parkes telescope of the axially-symmetric "Mouse" radio nebula (G359.23-0.82). Timing…

Astrophysics · Physics 2009-11-07 F. Camilo , R. N. Manchester , B. M. Gaensler , D. R. Lorimer

We present long-term observations of two intermittent pulsars, PSRs~J1832+0029 and J1841$-$0500 using the Parkes 64\,m radio telescope. The radio emission for these pulsars switches "off" for year-long durations. Our new observations have…

High Energy Astrophysical Phenomena · Physics 2020-07-08 S. Q. Wang , J. B. Wang , G. Hobbs , S. B. Zhang , R. M. Shannon , S. Dai , R. Hollow , M. Kerr , V. Ravi , N. Wang , L. Zhang

We report the serendipitous discovery of an extremely intermittent radio pulsar, PSR J1710-3452, with a relatively long spin period of 10.4 s. The object was discovered through the detection of 97 bright radio pulses in only one out of 66…

We present timing solutions and analyses of 11 pulsars discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST). These pulsars were discovered using an ultra-wide bandwidth receiver in drift-scan observations made…

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