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We report observed and derived timing parameters for three millisecond pulsars (MSPs) from observations collected with the Parkes 64-m telescope, Murriyang. The pulsars were found during re-processing of archival survey data by Mickaliger…

We identified a highly-polarized, steep-spectrum radio source in a deep image with the Australian Square Kilometre Array Pathfinder (ASKAP) telescope at 888 MHz. After considering and rejecting a stellar origin for this source, we…

Using LOFAR, we have performed a very-low-frequency (115-155 MHz) radio survey for millisecond pulsars (MSPs). The survey targeted 52 unidentified Fermi $\gamma$-ray sources. Employing a combination of coherent and incoherent dedispersion,…

We report results of one of the most sensitive pulsar surveys to date targeting the innermost region of the Galactic Center (GC) using the Robert C. Byrd Green Bank Telescope (GBT) at X-band (8--12GHz) using data from the Breakthrough…

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

Using the Parkes radio telescope we have carried out deep observations of eleven unassociated gamma-ray sources. Periodicity searches of these data have discovered two millisecond pulsars, PSR J1103-5403 (1FGL J1103.9-5355) and PSR…

The mysterious Galactic Center Excess of gamma rays could be explained by a large population of millisecond pulsars hiding in the Galactic bulge, too faint to be detected as individual high-energy point sources by the Fermi Large Area…

We performed deep observations to search for radio pulsations in the directions of 375 unassociated Fermi Large Area Telescope (LAT) gamma-ray sources using the Giant Metrewave Radio Telescope (GMRT) at 322 and 607 MHz. In this paper we…

Globular clusters contain a unique pulsar population, with many exotic systems that can form only in their dense stellar environments. The leap in sensitivity of the upgraded Giant Metrewave Radio Telescope (uGMRT) in India, especially at…

High Energy Astrophysical Phenomena · Physics 2022-08-09 T. Gautam , A. Ridolfi , P. C. C. Freire , R. S. Wharton , Y. Gupta , S. M. Ransom , L. S. Oswald , M. Kramer , M. E. DeCesar

We are undertaking a high-frequency survey of the Galactic plane for radio pulsars, using the 13-element multibeam receiver on the 64-m Parkes radio telescope. We describe briefly the survey system and some of the initial results. PSR…

Binary millisecond pulsars (MSPs) provide several opportunities for research of fundamental physics. However, finding them can be challenging. Several subdwarf B (sdB) binary systems with possible neutron star companions have been…

High Energy Astrophysical Phenomena · Physics 2020-01-22 L. C. Oostrum , J. van Leeuwen , Y. Maan , T. Coenen , C. H. Ishwara-Chandra

Millisecond pulsars, old neutron stars spun-up by accreting matter from a companion star, can reach high rotation rates of hundreds of revolutions per second. Until now, all such "recycled" rotation-powered pulsars have been detected by…

High Energy Astrophysical Phenomena · Physics 2012-11-27 H. J. Pletsch , L. Guillemot , H. Fehrmann , B. Allen , M. Kramer , C. Aulbert , M. Ackermann , M. Ajello , A. de Angelis , W. B. Atwood , L. Baldini , J. Ballet , G. Barbiellini , D. Bastieri , K. Bechtol , R. Bellazzini , A. W. Borgland , E. Bottacini , T. J. Brandt , J. Bregeon , M. Brigida , P. Bruel , R. Buehler , S. Buson , G. A. Caliandro , R. A. Cameron , P. A. Caraveo , J. M. Casandjian , C. Cecchi , Ö. Celik , E. Charles , R. C. G. Chaves , C. C. Cheung , J. Chiang , S. Ciprini , R. Claus , J. Cohen-Tanugi , J. Conrad , S. Cutini , F. D'Ammando , C. D. Dermer , S. W. Digel , P. S. Drell , A. Drlica-Wagner , R. Dubois , D. Dumora , C. Favuzzi , E. C. Ferrara , A. Franckowiak , Y. Fukazawa , P. Fusco , F. Gargano , N. Gehrels , S. Germani , N. Giglietto , F. Giordano , M. Giroletti , G. Godfrey , I. A. Grenier , M. -H. Grondin , J. E. Grove , S. Guiriec , D. Hadasch , Y. Hanabata , A. K. Harding , P. R. den Hartog , M. Hayashida , E. Hays , A. B. Hill , X. Hou , R. E. Hughes , G. Johannesson , M. S. Jackson , T. Jogler , A. S. Johnson , W. N. Johnson , J. Kataoka , M. Kerr , J. Knödlseder , M. Kuss , J. Lande , S. Larsson , L. Latronico , M. Lemoine-Goumard , F. Longo , F. Loparco , M. N. Lovellette , P. Lubrano , F. Massaro , M. Mayer , M. N. Mazziotta , J. E. McEnery , J. Mehault , P. F. Michelson , W. Mitthumsiri , T. Mizuno , M. E. Monzani , A. Morselli , I. V. Moskalenko , S. Murgia , T. Nakamori , R. Nemmen , E. Nuss , M. Ohno , T. Ohsugi , N. Omodei , M. Orienti , E. Orlando , F. de Palma , D. Paneque , J. S. Perkins , F. Piron , G. Pivato , T. A. Porter , S. Raino , R. Rando , P. S. Ray , M. Razzano , A. Reimer , O. Reimer , T. Reposeur , S. Ritz , R. W. Romani , C. Romoli , D. A. Sanchez , P. M. Saz Parkinson , A. Schulz , C. Sgro , E. do Couto e Silva , E. J. Siskind , D. A. Smith , G. Spandre , P. Spinelli , D. J. Suson , H. Takahashi , T. Tanaka , J. B. Thayer , J. G. Thayer , D. J. Thompson , L. Tibaldo , M. Tinivella , E. Troja , T. L. Usher , J. Vandenbroucke , V. Vasileiou , G. Vianello , V. Vitale , A. P. Waite , B. L. Winer , K. S. Wood , M. Wood , Z. Yang , S. Zimmer

We present timing observations of four millisecond pulsars discovered in the Parkes 20-cm multibeam pulsar survey of the Galactic plane. PSRs J1552-4937 and J1843-1448 are isolated objects with spin periods of 6.28 and 5.47 ms respectively.…

We report the discovery of two highly dispersed pulsars in the direction of the Galactic Centre made during a survey at 3.1 GHz with the Parkes radio telescope. Both PSRs J1745-2912 and J1746-2856 have an angular separation from the…

The supernova remnant G0.9+0.1 has long been inferred to contain a central energetic pulsar. In observations with the NRAO Green Bank Telescope at 2 GHz, we have detected radio pulsations from PSR J1747-2809. The pulsar has a rotation…

Astrophysics of Galaxies · Physics 2009-08-05 F. Camilo , S. M. Ransom , B. M. Gaensler , D. R. Lorimer

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

We report the results of a blind pulsar survey carried out with the Giant Metrewave Radio Telescope (GMRT) at 325 MHz. The survey covered about 10\% of the region between Galactic longitude 45$^{\circ} < l <$ 135$^{\circ}$ and Galactic…

High Energy Astrophysical Phenomena · Physics 2018-05-23 Mayuresh P. Surnis , Bhal Chandra Joshi , Maura A. McLaughlin , Duncan R. Lorimer , Krishnakumar M. A. , P. K. Manoharan , Arun Naidu

High sensitivity radio searches of unassociated $\gamma$-ray sources have proven to be an effective way of finding new pulsars. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) during its commissioning phase, we have…

We present the discovery of a binary millisecond pulsar (MSP), PSR J2322$-$2650, found in the Southern section of the High Time Resolution Universe survey. This system contains a 3.5-ms pulsar with a $\sim10^{-3}$ M$_{\odot}$ companion in a…

NGC 6316 is a poorly studied, distant, and massive globular cluster (GC) with prominent gamma-ray emission detected via the \textit{Fermi} Large Area Telescope (LAT). Based on gamma-ray spectral studies, NGC 6316 is expected to host tens of…

High Energy Astrophysical Phenomena · Physics 2026-03-09 Deven Bhakta , Scott M. Ransom , Megan DeCesar , Shi Dai
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