Searching for the Nano-Hertz Stochastic Gravitational Wave Background with the Chinese Pulsar Timing Array Data Release I [PDF]
Research in Astronomy and Astrophysics, 2023 Observing and timing a group of millisecond pulsars with high rotational stability enables the direct detection of gravitational waves (GWs). The GW signals can be identified from the spatial correlations encoded in the times-of-arrival of widely spaced ...
Heng Xu +26 more
semanticscholar +1 more source
The second data release from the European Pulsar Timing Array. III. Search for gravitational wave signals [PDF]
Astronomy & Astrophysics, 2023 We present the results of the search for an isotropic stochastic gravitational wave background (GWB) at nanohertz frequencies using the second data release of the European Pulsar Timing Array (EPTA) for 25 millisecond pulsars and a combination with the ...
J. Antoniadis +97 more
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The second data release from the European Pulsar Timing Array. I. The dataset and timing analysis [PDF]
Astronomy & Astrophysics, 2023 Pulsar timing arrays offer a probe of the low-frequency gravitational wave spectrum (1 - 100 nanohertz), which is intimately connected to a number of markers that can uniquely trace the formation and evolution of the Universe.
J. Antoniadis +68 more
semanticscholar +1 more source
A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy [PDF]
Astrophysical Journal Letters, 2021 We report on Bayesian estimation of the radius, mass, and hot surface regions of the massive millisecond pulsar PSR J0740+6620, conditional on pulse-profile modeling of Neutron Star Interior Composition Explorer X-ray Timing Instrument event data.
T. E. Riley +29 more
semanticscholar +1 more source
The Parkes Pulsar Timing Array third data release [PDF]
Publications Astronomical Society of Australia, 2023 We present the third data release from the Parkes Pulsar Timing Array (PPTA) project. The release contains observations of 32 pulsars obtained using the 64-m Parkes ‘Murriyang’ radio telescope.
A. Zic +33 more
semanticscholar +1 more source
The Gravitational-wave Background Null Hypothesis: Characterizing Noise in Millisecond Pulsar Arrival Times with the Parkes Pulsar Timing Array [PDF]
Astrophysical Journal Letters, 2023 The noise in millisecond pulsar (MSP) timing data can include contributions from observing instruments, the interstellar medium, the solar wind, solar system ephemeris errors, and the pulsars themselves.
D. Reardon +21 more
semanticscholar +1 more source
Scalar induced gravitational waves in light of Pulsar Timing Array data [PDF]
Science China Physics Mechanics and Astronomy, 2023 The power-law parametrization for the energy density spectrum of gravitational wave (GW) background is a useful tool to study its physics and origin. While scalar induced secondary gravitational waves (SIGWs) from some particular models fit the signal ...
Zhu Yi +4 more
semanticscholar +1 more source
Overcoming the Challenges of Transmural Durable Lesions With PFA-Impact of Electrode Design and Contact Assessment. [PDF]
Pacing Clin ElectrophysiolAbstract Electrode design and reliable contact assessment are critical for creating durable pulsed field ablation (PFA) lesions to treat atrial fibrillation while minimizing collateral damage. This review introduces a novel “map‐and‐ablate” PFA catheter featuring flat electrodes, thermal contact assessment, and fully customizable electrode selection ...
Melki L, Moisa S, Reinders D, Boucher S.
europepmc +2 more sources
On the Evidence for a Common-spectrum Process in the Search for the Nanohertz Gravitational-wave Background with the Parkes Pulsar Timing Array [PDF]
, 2021 A nanohertz-frequency stochastic gravitational-wave background can potentially be detected through the precise timing of an array of millisecond pulsars.
B. Goncharov +28 more
semanticscholar +1 more source
Common-red-signal analysis with 24-yr high-precision timing of the European Pulsar Timing Array: Inferences in the stochastic gravitational-wave background search [PDF]
, 2021 We present results from the search for a stochastic gravitational-wave background (GWB) as predicted by the theory of General Relativity using six radio millisecond pulsars from the Data Release 2 (DR2) of the European Pulsar Timing Array (EPTA) covering
S. Chen +51 more
semanticscholar +1 more source