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Rotating Radio Transients (RRATs) are a relatively new subclass of pulsars that emit detectable radio bursts sporadically. We conducted an analysis of 10 RRATs observed using the Parkes telescope, with 8 of these observed via the…

High Energy Astrophysical Phenomena · Physics 2024-02-29 Xinhui Ren , Jingbo Wang , Wenming Yan , Jintao Xie , Shuangqiang Wang , Yirong Wen , Yong Xia

We have observed PSR~B1534+12 (J1537+1155), a pulsar with a neutron star companion, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We found that this pulsar shows two distinct emission states: a weak state with a…

High Energy Astrophysical Phenomena · Physics 2020-10-14 S. Q. Wang , G. Hobbs , J. B. Wang , R. Manchester , N. Wang , S. B. Zhang , Y. Feng , W. -Y. Wang , D. Li , S. Dai , K. J. Lee , S. J. Dang , L. Zhang

We have carried out high frequency radio observations of the high magnetic field pulsar PSR J1119-6127 following its recent X-ray outburst. While initial observations showed no evidence of significant radio emission, subsequent observations…

High Energy Astrophysical Phenomena · Physics 2017-01-04 Walid A. Majid , Aaron B. Pearlman , Tatyana Dobreva , Shinji Horiuchi , Jonathon Kocz , Jonas Lippuner , Thomas A. Prince

We have been conducting the GMRT High Resolution Southern Sky (GHRSS) survey for the last four years and have discovered 18 pulsars to date. The GHRSS survey is an off-Galactic-plane survey at 322 MHz in a region of the sky (declination…

Rotating Radio Transients (RRATs) represent a relatively new class of pulsar, primarily characterised by their sporadic bursting emission of single pulses on time scales of minutes to hours. In addition to the difficulty involved in…

High Energy Astrophysical Phenomena · Physics 2019-09-11 B. W. Meyers , S. E. Tremblay , N. D. R. Bhat , R. M. Shannon , S. M. Ord , C. Sobey , M. Johnston-Hollitt , M. Walker , R. B. Wayth

We have analyzed single pulses from PSR J0737-3039B, the 2.8-s pulsar in the recently discovered double pulsar system, using data taken with the Green Bank Telescope at 820 and 1400 MHz. We report the detection of features similar to…

PSR J1846-0258 is an object which straddles the boundary between magnetars and rotation powered pulsars. Though behaving for many years as a rotation-powered pulsar, in 2006, it exhibited distinctly magnetar-like behavior - emitting several…

High Energy Astrophysical Phenomena · Physics 2015-09-16 R. F. Archibald , V. M. Kaspi , A. P. Beardmore , N. Gehrels , J. A. Kennea

We present an investigation of the morphology and arrival times of integrated radio pulses from the binary millisecond pulsar PSR J1022+1001. This pulsar is renowned for its poor timing properties, which have been postulated to originate…

Astrophysics · Physics 2016-08-30 A. W. Hotan , M. Bailes , S. M. Ord

We have analyzed 5.5 years of timing observations of 7 'slowly' rotating radio pulsars, made with the Westerbork Synthesis Radio Telescope. We present improved timing solutions and 30, mostly small, new glitches. Particularly interesting…

Astrophysics · Physics 2009-11-11 G. H. Janssen , B. W. Stappers

We report the independent discovery of PSR J0027-1956 with the Murchison Widefield Array (MWA) in the ongoing Southern-sky MWA Rapid Two-meter (SMART) pulsar survey. J0027-1956 has a period of ~1.306 s, a dispersion measure (DM) of ~20.869…

We present five recycled pulsars discovered during a 21-cm survey of approximately 4,150 deg^2 between 15 deg and 30 deg from the galactic plane using the Parkes radio telescope. One new pulsar, PSR J1528-3146, has a 61 ms spin period and a…

Astrophysics · Physics 2008-11-26 B. A. Jacoby , M. Bailes , S. M. Ord , H. S. Knight , A. W. Hotan

New radio (MeerKAT and Parkes) and X-ray (XMM-Newton, Swift, Chandra, and NuSTAR) observations of PSR J1622-4950 indicate that the magnetar, in a quiescent state since at least early 2015, reactivated between 2017 March 19 and April 5. The…

High Energy Astrophysical Phenomena · Physics 2018-04-06 F. Camilo , P. Scholz , M. Serylak , S. Buchner , M. Merryfield , V. M. Kaspi , R. F. Archibald , M. Bailes , A. Jameson , W. van Straten , J. Sarkissian , J. E. Reynolds , S. Johnston , G. Hobbs , T. D. Abbott , R. M. Adam , G. B. Adams , T. Alberts , R. Andreas , K. M. B. Asad , D. E. Baker , T. Baloyi , E. F. Bauermeister , T. Baxana , T. G. H. Bennett , G. Bernardi , D. Booisen , R. S. Booth , D. H. Botha , L. Boyana , L. R. S. Brederode , J. P. Burger , T. Cheetham , J. Conradie , J. P. Conradie , D. B. Davidson , G. de Bruin , B. de Swardt , C. de Villiers , D. I. L. de Villiers , M. S. de Villiers , W. de Villiers , C. de Waal , M. A. Dikgale , G. du Toit , L. J. du Toit , S. W. P. Esterhuyse , B. Fanaroff , S. Fataar , A. R. Foley , G. Foster , D. Fourie , R. Gamatham , T. Gatsi , R. Geschke , S. Goedhart , T. L. Grobler , S. C. Gumede , M. J. Hlakola , A. Hokwana , D. H. Hoorn , D. Horn , J. Horrell , B. Hugo , A. Isaacson , O. Jacobs , J. P. Jansen van Rensburg , J. L. Jonas , B. Jordaan , A. Joubert , F. Joubert , G. I. G. Jozsa , R. Julie , C. C. Julius , F. Kapp , A. Karastergiou , F. Karels , M. Kariseb , R. Karuppusamy , V. Kasper , E. C. Knox-Davies , D. Koch , P. P. A. Kotze , A. Krebs , N. Kriek , H. Kriel , T. Kusel , S. Lamoor , R. Lehmensiek , D. Liebenberg , I. Liebenberg , R. T. Lord , B. Lunsky , N. Mabombo , T. Macdonald , P. Macfarlane , K. Madisa , L. Mafhungo , L. G. Magnus , C. Magozore , O. Mahgoub , J. P. L. Main , S. Makhathini , J. A. Malan , P. Malgas , J. R. Manley , M. Manzini , L. Marais , N. Marais , S. J. Marais , M. Maree , A. Martens , S. D. Matshawule , N. Matthysen , T. Mauch , L. D. Mc Nally , B. Merry , R. P. Millenaar , C. Mjikelo , N. Mkhabela , N. Mnyandu , I. T. Moeng , O. J. Mokone , T. E. Monama , K. Montshiwa , V. Moss , M. Mphego , W. New , B. Ngcebetsha , K. Ngoasheng , H. Niehaus , P. Ntuli , A. Nzama , F. Obies , M. Obrocka , M. T. Ockards , C. Olyn , N. Oozeer , A. J. Otto , Y. Padayachee , S. Passmoor , A. A. Patel , S. Paula , A. Peens-Hough , B. Pholoholo , P. Prozesky , S. Rakoma , A. J. T. Ramaila , I. Rammala , Z. R. Ramudzuli , M. Rasivhaga , S. Ratcliffe , H. C. Reader , R. Renil , L. Richter , A. Robyntjies , D. Rosekrans , A. Rust , S. Salie , N. Sambu , C. T. G. Schollar , L. Schwardt , S. Seranyane , G. Sethosa , C. Sharpe , R. Siebrits , S. K. Sirothia , M. J. Slabber , O. Smirnov , S. Smith , L. Sofeya , N. Songqumase , R. Spann , B. Stappers , D. Steyn , T. J. Steyn , R. Strong , A. Struthers , C. Stuart , P. Sunnylall , P. S. Swart , B. Taljaard , C. Tasse , G. Taylor , I. P. Theron , V. Thondikulam , K. Thorat , A. Tiplady , O. Toruvanda , J. van Aardt , T. van Balla , L. van den Heever , A. van der Byl , C. van der Merwe , P. van der Merwe , P. C. van Niekerk , R. van Rooyen , J. P. van Staden , V. van Tonder , R. van Wyk , I. Wait , A. L. Walker , B. Wallace , M. Welz , L. P. Williams , B. Xaia , N. Young , S. Zitha

IGR J16320-4751 is a highly obscured HMXB source containing a very slow neutron star ($P_{spin}\sim1300$ sec) orbiting its supergiant companion star with a period of $\sim$9 days. It shows high column density ($N_{H}\sim2-5\times10^{23}$…

High Energy Astrophysical Phenomena · Physics 2022-10-07 Varun , Nirmal Iyer , Biswajit Paul

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…

The rotation-powered pulsar PSR J1846-0258 in the supernova remnant Kes 75 was recently shown to have exhibited magnetar-like X-ray bursts in mid-2006. Radio emission has not yet been observed from this source, but other magnetar-like…

We report 21-yr timing of one of the most precise pulsars: PSR J1713+0747. Its pulse times of arrival are well modeled by a comprehensive pulsar binary model including its three-dimensional orbit and a noise model that incorporates…

We present new X-ray timing and spectral observations of PSR J1930+1852, the young energetic pulsar at the center of the non-thermal supernova remnant G54.1+0.3. Using data obtained with the Rossi X-ray Timing Explorer and Chandra X-ray…

Astrophysics · Physics 2009-06-23 Fangjun Lu , Q. Daniel Wang , E. V. Gotthelf , Jinlu Qu

Over the summer of 2007, we obtained 1191 hours of `drift-scan' pulsar search observations with the Green Bank Telescope at a radio frequency of 350 MHz. Here we describe the survey setup, search procedure, and the discovery and follow-up…

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

We present timing models for 20 millisecond pulsars in the Parkes Pulsar Timing Array. The precision of the parameter measurements in these models has been improved over earlier results by using longer data sets and modelling the…