English
Related papers

Related papers: Peculiar nulling in PSR J1738-2330

200 papers

Polarized radio emission of RRAT J1854+0306 is investigated with single pulses using Five-hundred-meter-Aperture Spherical Telescope. Its emission is characterized by nulls, narrow and weak pulses, and occasional wide and intense bursts…

High Energy Astrophysical Phenomena · Physics 2024-04-26 Qi Guo , Minzhi Kong , P. F. Wang , Y. Yan , D. J. Zhou

Here we report on observations of the radio magnetar PSR J1622-4950 at frequencies from 1.4 to 17 GHz. We show that although its flux density is varying up to a factor of ~10 within a few days, it has on average decreased by a factor of 2…

PSR J1734-3333 is a radio pulsar rotating with a period P=1.17 s and slowing down with a period derivative Pdot=2.28 x 10^{-12}, the third largest among rotation-powered pulsars. These properties are midway between those of normal…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Cristobal M. Espinoza , Andrew Lyne , Michael Kramer , Richard N. Manchester , Victoria Kaspi

We present new results of timing and single pulse measurements for 18 radio pulsars discovered in 1993 - 1997 by the Penn State/NRL declination-strip survey conducted with the 305-m Arecibo telescope at 430 MHz. Long-term timing…

Astrophysics · Physics 2009-11-10 W. Lewandowski , A. Wolszczan , G. Feiler , M. Konacki , T. Soltysinski

We have detected the rare phenomenon of stable, drifting sub-pulse behaviour in two pulsars discovered in the recent Swinburne intermediate latitude pulsar survey. The pulsars; PSR J1231-47 and PSR J1919+0134, have approximate periods (P)…

Astrophysics · Physics 2009-11-07 S. M. Ord , R. Edwards , M. Bailes

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…

We present the results of a search for transient radio bursts of between 0.125 and 32 millisecond duration in two archival pulsar surveys of intermediate galactic latitudes with the Parkes multibeam receiver. Fourteen new neutron stars have…

Solar and Stellar Astrophysics · Physics 2015-05-14 S. Burke-Spolaor , M. Bailes

We present a phase-coherent timing solution for PSR J1640-4631, a young 206 ms pulsar using X-ray timing observations taken with NuSTAR. Over this timing campaign, we have measured the braking index of PSR J1640-4631 to be n = 3.15+/-0.03.…

We report the discovery and timing measurements of PSR J1208-6238, a young and highly magnetized gamma-ray pulsar, with a spin period of 440 ms. The pulsar was discovered in gamma-ray photon data from the Fermi Large Area Telescope (LAT)…

PSR~J1618$-$3921 is an $11.99$-ms pulsar in a $22.7$-d orbit around a likely low-mass He white dwarf companion, discovered in a survey of the intermediate Galactic latitudes at 1400 MHz conducted with the Parkes radio telescope in the late…

High Energy Astrophysical Phenomena · Physics 2018-05-02 F. Octau , I. Cognard , L. Guillemot , T. M. Tauris , P. C. C. Freire , G. Desvignes , G. Theureau

We report on polarimetric observations of 100 pulsars centered on 774 MHz, made using the Green Bank Telescope, presenting their polarization profiles and polarized flux densities and comparing them with previous observations when possible.…

Solar and Stellar Astrophysics · Physics 2009-03-25 J. L. Han , P. B. Demorest , W. van Straten , A. G. Lyne

We report the emission variations in PSR J1047$-$6709 observed at 1369 MHz using the Parkes 64 m radio telescope. This pulsar shows two distinct emission states: a weak state and a bright emission state. We detected giant pulses (GPs) in…

High Energy Astrophysical Phenomena · Physics 2020-12-23 S. N. Sun , W. M. Yan , N. Wang

We report on X-ray observations of the young, energetic radio pulsar PSR J1105-6107 obtained using the Rossi X-ray Timing Explorer. Our timing analysis of Proportional Counter Array data finds no evidence for X-ray pulsations from this…

Astrophysics · Physics 2007-05-23 Julia K. Steinberger , Victoria M. Kaspi , Eric V. Gotthelf

PSR J1618-3921 is one of five known millisecond pulsars (MSPs) in eccentric orbits (eMPSs) located in the Galactic plane, whose formation is poorly understood. Earlier studies of these objects revealed significant discrepancies between…

PSR J1023+0038 is an exceptional system for understanding how slowly rotating neutron stars are spun up to millisecond rotational periods through accretion from a companion star. Observed as a radio pulsar from 2007-2013, optical data…

High Energy Astrophysical Phenomena · Physics 2015-06-17 A. Patruno , A. M. Archibald , J. W. T. Hessels , S. Bogdanov , B. W. Stappers , C. G. Bassa , G. H. Janssen , V. M. Kaspi , S. Tendulkar , A. G. Lyne

We present periodicity and single-pulse searches at 1250 MHz for 22 radio-quiet gamma-ray pulsars, conducted using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST). For PSR J1813$-$1246, we successfully detected pulsed…

High Energy Astrophysical Phenomena · Physics 2025-06-13 S. Q. Wang , S. Dai , N. Wang , A. Zic , G. Hobbs , D. Li , R. B. Ding , L. Peng , Z. C. Pan , S. B. Zhang

By analysing the data acquired from the Parkes 64-m radio telescope at 1369 MHz, we report on the phase-stationary non-drift amplitude modulation observed in PSR J1048-5832. The high-sensitivity observations revealed that the central and…

High Energy Astrophysical Phenomena · Physics 2020-01-08 W. M. Yan , R. N. Manchester , N. Wang , Z. G. Wen , J. P. Yuan , K. J. Lee , J. L. Chen

The origin of the high-frequency radio emission detected from several magnetars is poorly understood. In this paper, we report the ~40 GHz properties of SGR J1745-29 as measured using Jansky Very Large Array (JVLA) and Robert C. Byrd Green…

We undertake the first targeted search at 1.5 GHz for radio emission from the variable $\gamma$-ray pulsar PSR J2021$+$4026. This radio-quiet pulsar assumes one of two stable $\gamma$-ray emission states, between which it transitions on a…

High Energy Astrophysical Phenomena · Physics 2023-05-24 B. Shaw , B. W. Stappers , P. Weltevrede , C. A. Jordan , M. B. Mickaliger , A. G. Lyne

While pulsars possess exceptional rotational stability, large scale timing studies have revealed at least two distinct types of irregularities in their rotation: red timing noise and glitches. Using modern Bayesian techniques, we…

‹ Prev 1 4 5 6 7 8 10 Next ›