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We report the discovery with the Parkes radio telescope of a pulsar associated with the ~ 1700 yr-old oxygen-rich composite supernova remnant G292.0+1.8. PSR J1124-5916 has period 135 ms and period derivative 7.4e-13, implying…

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

Targeted searches for pulsars based on their counterparts in radio images have resulted in the discovery of interesting pulsars including the first ever discovered millisecond pulsar (MSP). We are conducting an image-based pulsar survey,…

High Energy Astrophysical Phenomena · Physics 2026-04-01 Yogesh Maan , Apurba Bera , Dharam Vir Lal , Yash Bhusare , Preeti Kharb , Banshi Lal , Pikky Atri

In this paper we present the first observations of a large sample of millisecond pulsars at frequencies of 2.7 GHz and 4.9 GHz. Our new flux measurements extend the known spectra for millisecond pulsars to the highest frequencies to date.…

Astrophysics · Physics 2009-10-31 M. Kramer , C. Lange , D. R. Lorimer , D. C. Backer , K. M. Xilouris , A. Jessner , R. Wielebinski

Searches for millisecond pulsars (which we here loosely define as those with periods $<$ 20 ms) in the Galactic field have undergone a renaissance in the past five years. New or recently refurbished radio telescopes utilizing cooled…

Astrophysics of Galaxies · Physics 2015-06-16 K. Stovall , D. R. Lorimer , R. S Lynch

We report the discovery of PSR J1757$-$1854, a 21.5-ms pulsar in a highly-eccentric, 4.4-h orbit around a neutron star (NS) companion. PSR J1757$-$1854 exhibits some of the most extreme relativistic parameters of any known pulsar, including…

We present the discovery of 528.6 Hz pulsations in the new X-ray transient MAXI J1816-195. Using NICER, we observed the first recorded transient outburst from the neutron star low-mass X-ray binary MAXI J1816-195 over a period of 28 days.…

We present a study of PSR J1723-2837, an eclipsing, 1.86 ms millisecond binary radio pulsar discovered in the Parkes Multibeam survey. Radio timing indicates that the pulsar has a circular orbit with a 15 hr orbital period, a low-mass…

Neutron stars in close binary systems have the potential to spin up to millisecond periods due to the accretion of matter and angular momentum from their low-mass companions. In later stages of this process, they sometimes start to swing…

High Energy Astrophysical Phenomena · Physics 2026-05-22 S. V. Karpov , Artyom S. Tanashkin , G. M. Beskin , V. L. Plokhotnichenko , Y. A. Shibanov , D. A. Zyuzin

We present an analysis of 4 nulling pulsars with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). For PSR J1649+2533, our results suggest mode changing rather than subpulse drifting as previously reported at lower…

High Energy Astrophysical Phenomena · Physics 2025-11-07 Jingbo Wang , Jintao Xie , Jing Zou , Jianfei Tang

Since 2013 round-the-clock monitoring of the sky is carried out simultaneously in 96 space beams using the high-sensitivity radio telescope of LPA (Large Phased Array) at the frequency 110.25 MHz. These observations are made under the…

High Energy Astrophysical Phenomena · Physics 2018-08-15 V. M. Malofeev , S. A. Tyul'bashev

We report the discovery of a highly circularly polarized, variable, steep-spectrum pulsar in the Australian Square Kilometre Array Pathfinder (ASKAP) Variables and Slow Transients (VAST) survey. The pulsar is located about $1^\circ$ from…

Pulsars in the Galactic centre promise to enable unparalleled tests of gravity theories and black hole physics and to serve as probes of the stellar formation history and evolution and the interstellar medium in the complex central region…

The number of known millisecond pulsars has dramatically increased in the last few years. Regular observations of these pulsars may allow gravitational waves with frequencies ~10^-9 Hz to be detected. A ``pulsar timing array'' is therefore…

Astrophysics · Physics 2009-11-10 George Hobbs

In this paper the anomalous intense pulse of the PSR J0953+0755 was studied in decametre wavelength range. For this pulse two scales of fine structure were discovered. The long-scale structure consists of four components, where the visible…

High Energy Astrophysical Phenomena · Physics 2015-11-11 O. M. Ulyanov , A. O. Skoryk , A. I. Shevtsova , M. S. Plakhov , O. O. Ulyanova

Understanding the jitter noise resulting from single-pulse phase and shape variations is important for the detection of gravitational waves using pulsar timing array. We presented measurements of jitter noise and single-pulse variability of…

High Energy Astrophysical Phenomena · Physics 2024-01-24 S. Q. Wang , N. Wang , J. B. Wang , G. Hobbs , H. Xu , B. J. Wang , S. Dai , S. J. Dang , D. Li , Y. Feng , C. M. Zhang

The SUrvey for Pulsars and Extragalactic Radio Bursts ran from 2014 April to 2019 August, covering a large fraction of the southern hemisphere at mid- to high-galactic latitudes, and consisting of 9-minute pointings taken with the 20-cm…

High Energy Astrophysical Phenomena · Physics 2020-07-08 R. Spiewak , C. Flynn , S. Johnston , E. F. Keane , M. Bailes , E. D. Barr , S. Bhandari , M. Burgay , F. Jankowski , M. Kramer , V. Morello , A. Possenti , V. Venkatraman Krishnan

We report the discovery by the RXTE PCA of a second transient accreting millisecond pulsar, XTE J1751-305, during regular monitoring observations of the galactic bulge region. The pulsar has a spin frequency of 435 Hz, making it one of the…

We have used the Arecibo Radio Telescope to search for millisecond pulsars in two intermediate Galactic latitude regions (7 deg < | b | < 20 deg) accessible to this telescope. For these latitudes the useful millisecond pulsar search volume…

Astrophysics · Physics 2008-11-26 Jose Navarro , Stuart Anderson , Paulo C. Freire

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
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