THE NANOGRAV NINE-YEAR DATA SET: MASS AND GEOMETRIC MEASUREMENTS OF BINARY MILLISECOND PULSARS [PDF]
, 2016 We analyze 24 binary radio pulsars in the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) nine-year data set. We make 14 significant measurements of the Shapiro delay, including new detections in four pulsar-binary systems (PSRs ...
E. Fonseca +19 more
semanticscholar +1 more source
Monthly Notices of the Royal Astronomical Society, 2010 We investigate the possibilities that pulsars act as the lens in gravitational microlensing events towards the galactic bulge or a spiral arm. Our estimation is based on expectant survey and observations of FAST (Five hundred meter Aperture Spherical Telescope) and SKA (Square Kilometer Array), and two different models of pulsar distribution are used ...
R. X. Xu, S. Dai, A. Esamdin
openaire +3 more sources
Could acceleration of a pulsar affect braking index?
European Physical Journal C: Particles and Fields, 2020 In the coming era of multi-messenger astrophysics, pulsars might be one of the most possible electromagnetic counterparts of the gravitational wave. The braking indices, which are related closely to the electromagnetic radiation of pulsars, are shown to ...
Zhe Chang, Qing-Hua Zhu
doaj +1 more source
Spatial Modulation Search Applied to the Search and Confirmation of Highly Scintillated Pulsars at FAST with A Pulsar Discovered in M3 [PDF]
, 2021 We present a pulsar candidate identification and confirmation procedure based on a position-switch mode during the pulsar search observations. This method enables the simultaneous search and confirmation of a pulsar in a single observation, by utilizing the different spatial features of a pulsar signal and a radio frequency interference (RFI). Based on
arxiv +1 more source
Lessons from HAWC pulsar wind nebulae observations: The diffusion constant is not a constant; pulsars remain the likeliest sources of the anomalous positron fraction; cosmic rays are trapped for long periods of time in pockets of inefficient diffusion [PDF]
Physical Review D, 2018 Author(s): Profumo, Stefano; Reynoso-Cordova, Javier; Kaaz, Nicholas; Silverman, Maya | Abstract: Recent TeV observations of nearby pulsars with the HAWC telescope have been interpreted as evidence that the diffusion of high-energy electrons and ...
S. Profumo +3 more
semanticscholar +1 more source
Bunching Coherent Curvature Radiation in Three-dimensional Magnetic Field Geometry: Application to Pulsars and Fast Radio Bursts [PDF]
Astrophysical Journal, 2017 The extremely high brightness temperatures of pulsars and fast radio bursts (FRBs) require their radiation mechanisms to be coherent. Coherent curvature radiation from bunches has been long discussed as the mechanism for radio pulsars and recently for ...
Yuanpei Yang, Bing Zhang
semanticscholar +1 more source
The Pulsar Wind Nebula of the Geminga Pulsar [PDF]
The Astrophysical Journal, 2006 Revised version: data analysis described in more detail, Figure 2 replaced; 6 pages, 2 color figures; accepted for publication in ApJ (v.643, 2006 June 1)
George G. Pavlov +2 more
openaire +2 more sources
Space Science Reviews, 2015 Almost 50 years after radio pulsars were discovered in 1967, our understanding of these objects remains incomplete. On the one hand, within a few years it became clear that neutron star rotation gives rise to the extremely stable sequence of radio pulses, that the kinetic energy of rotation provides the reservoir of energy, and that electromagnetic ...
Beskin, VS +3 more
openaire +4 more sources
Discovery of Four Pulsars in a Pilot Survey at Intermediate Galactic Latitudes with FAST
The Astrophysical Journal, 2023 We present the discovery and timing results of four pulsars discovered in a pilot survey at intermediate Galactic latitudes with the Five-hundred Aperture Spherical Telescope (FAST). Among these pulsars, two belong to the category of millisecond pulsars (
Q. J. Zhi +23 more
doaj +1 more source
Spectral properties of 441 radio pulsars [PDF]
, 2017 We present a study of the spectral properties of 441 pulsars observed with the Parkes radio telescope near the centre frequencies of 728, 1382 and 3100 MHz.
F. Jankowski +12 more
semanticscholar +1 more source