Could the low-braking-index pulsar PSR J1734-3333 evolve into a magnetar?: GAO et al.
Sign Up to like & getrecommendations! Published in 2017 at "Astronomische Nachrichten"
DOI: 10.1002/asna.201713436
Abstract: The low braking-index pulsar PSR J1734$-$3333 could be born with superhigh internal magnetic fields $B_{\rm in}\sim10^{15}-10^{16}$ G, and undergo a supercritical accretion soon after its formation in a supernova explosion. The buried multipole magnetic fields… read more here.
Keywords: index; index pulsar; pulsar; field ... See more keywords
Building X-ray pulsar timing model without the use of radio parameters
Sign Up to like & getrecommendations! Published in 2018 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2017.11.014
Abstract: Abstract This paper develops a timing solution for the X-ray pulsar timing model without the use of the initial radio model parameters. First, we address the problem of phase ambiguities for the pre-fit residuals in… read more here.
Keywords: pulsar; radio; model; ray pulsar ... See more keywords
Fast simulation of X-ray pulsar signals at a spacecraft
Sign Up to like & getrecommendations! Published in 2020 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2019.10.016
Abstract: Abstract Existing methods for simulating pulsar signals at a spacecraft are inapplicable for large flux or high frequency because of their low efficiency, hindering research on X-ray pulsar-based navigation. To solve the problem, we propose… read more here.
Keywords: pulsar; pulsar signals; fast simulation; ray pulsar ... See more keywords
The Southern-sky MWA Rapid Two-metre (SMART) pulsar survey—II. Survey status, pulsar census, and first pulsar discoveries
Sign Up to like & getrecommendations! Published in 2023 at "Publications of the Astronomical Society of Australia"
DOI: 10.1017/pasa.2023.18
Abstract: Abstract In Paper I, we presented an overview of the Southern-sky MWA Rapid Two-metre (SMART) survey, including the survey design and search pipeline. While the combination of MWA’s large field-of-view and the voltage capture system… read more here.
Keywords: pulsar discoveries; sky mwa; survey; pulsar ... See more keywords
First detection of X-ray pulsations and spectrum of the high Galactic latitude pulsar PSR J0837–2454 and direct Urca cooling implications
Sign Up to like & getrecommendations! Published in 2024 at "Publications of the Astronomical Society of Australia"
DOI: 10.1017/pasa.2024.64
Abstract: Abstract PSR J0837 $-$ 2454 is a young 629 ms radio pulsar whose uncertain distance has important implications. A large distance would place the pulsar far out of the Galactic plane and suggest it is… read more here.
Keywords: pulsar; direct urca; psr j0837; j0837 2454 ... See more keywords
The ORT and the uGMRT pulsar monitoring program: Pulsar timing irregularities & the Gaussian process realisation
Sign Up to like & getrecommendations! Published in 2024 at "Publications of the Astronomical Society of Australia"
DOI: 10.1017/pasa.2024.96
Abstract: Abstract The spin-down law of pulsars is generally perturbed by two types of timing irregularities: glitches and timing noise. Glitches are sudden changes in the rotational frequency of pulsars, while timing noise is a discernible… read more here.
Keywords: glitch; pulsar; analysis; timing noise ... See more keywords
Optical pulsations from a transitional millisecond pulsar
Sign Up to like & getrecommendations! Published in 2017 at "Nature Astronomy"
DOI: 10.1038/s41550-017-0266-2
Abstract: Millisecond pulsars are neutron stars that attain their very fast rotation during a 108–109-yr-long phase of disk accretion of matter from a low-mass companion star1,2. They can be detected as accretion-powered millisecond X-ray pulsars if… read more here.
Keywords: pulsar; accretion; millisecond; optical pulsations ... See more keywords
Bow shock and Local Bubble plasma unveiled by the scintillating millisecond pulsar J0437−4715
Sign Up to like & getrecommendations! Published in 2024 at "Nature Astronomy"
DOI: 10.1038/s41550-025-02534-6
Abstract: The ionized interstellar medium contains astronomical-unit-scale (and below) structures that scatter radio waves from pulsars, resulting in scintillation. Power spectral analysis of scintillation often shows parabolic arcs, with curvatures that encode the locations and kinematics… read more here.
Keywords: pulsar; local bubble; millisecond pulsar; j0437 4715 ... See more keywords
Two-dimensional positioning of the crab pulsar with avoidance of non-sensitive direction
Sign Up to like & getrecommendations! Published in 2025 at "Scientific Reports"
DOI: 10.1038/s41598-025-25591-3
Abstract: In the surrounding orbits, the position error of the spacecraft causes the distortion of the accumulative pulsar profile. Through theoretical analysis, a non-sensitive direction exists in three-dimensional space. Specifically, the initial position error in the… read more here.
Keywords: pulsar; non sensitive; dimensional positioning; two dimensional ... See more keywords
Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201936525
Abstract: Context. The Argentine Institute of Radio astronomy (IAR) is equipped with two single-dish 30 m radio antennas capable of performing daily observations of pulsars and radio transients in the southern hemisphere at 1.4 GHz. Aims:… read more here.
Keywords: radio astronomy; institute radio; argentine institute; pulsar ... See more keywords
A deep X-ray spectral imaging of the bow-shock pulsar wind nebula associated with PSR B1929+10
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202037873
Abstract: In this work, we study the X-ray bow-shock nebula powered by the mature pulsar PSR B1929+10 using data from XMM-Newton, with an effective exposure of $\sim$ 300 ks, offering the deepest investigation of this system… read more here.
Keywords: nebula; bow shock; psr b1929; pulsar ... See more keywords