Results 81 to 90 of about 613 (180)
Challenges in Binary Pulsar Timing Detection of Dark Matter Subhalos
The Astrophysical Journal LettersRecently, binary pulsar timing has been proposed as a viable probe of dark matter subhalos with masses of ∼10 ^7 M _⊙ in the solar neighborhood.
Zheng-Long Wang +3 more
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AerospaceThis paper addresses the use of the position difference between the reference satellite and the target spacecraft to improve X-ray pulsar navigation (XPNAV) for Earth orbit spacecraft. This is achieved by first installing an X-ray detector on the reference satellite whose position is accurately known.
Rong Jiao, Hua Zhang
openaire +2 more sources
The Astrophysical JournalIn this work, we propose a graph-based method implemented on the pulsar timing residuals for stochastic gravitational-wave background (SGWB) detection within the nanohertz frequency regime and examining uncertainties of its parameters.
M. Alakhras, S. M. S. Movahed
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Investigation of Accuracy of TOA and SNR of Radio Pulsar Signals for Vehicles Navigation. [PDF]
Sensors (Basel), 2023 Kabakchiev H +4 more
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Improving Pulsar Timing Precision with Single Pulse Fluence Clustering
The Astrophysical JournalTraditional pulsar timing techniques involve averaging large numbers of single pulses to obtain a high signal-to-noise ratio (S/N) profile, which is cross-correlated with a template to measure a time of arrival (TOA).
Sofia V. Sosa Fiscella +2 more
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Algorithmic Pulsar Timer for Binaries
The Astrophysical JournalPulsar timing is a powerful tool that, by accounting for every rotation of a pulsar, precisely measures the spin frequency, spin frequency derivatives, astrometric position, binary parameters when applicable, properties of the interstellar medium, and ...
Jackson Taylor +2 more
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The Astrophysical JournalPulsar timing arrays (PTAs) have recently entered the detection era, quickly moving beyond the goal of simply improving sensitivity at the lowest frequencies for the sake of observing the stochastic gravitational wave background (GWB), and focusing on ...
Jeffrey S. Hazboun +66 more
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Optimising gravitational-wave sky maps for pulsar timing arrays
Astronomy & AstrophysicsContext. Pulsar timing arrays (PTAs) have recently reported compelling evidence for the presence of a gravitational-wave background signal. Mapping the gravitational-wave background is key to understanding how it is formed, since anisotropy is a tracer ...
Grunthal Kathrin +5 more
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Future Space-based γ-Ray Pulsar Timing Arrays
The Astrophysical Journal LettersRadio pulsar timing arrays (PTAs) of millisecond pulsars (MSPs) are beginning to detect nHz gravitational waves (GWs). MSPs are bright γ -ray emitters, and all-sky monitoring of ∼100 MSPs with the Fermi Large Area Telescope enables the γ -ray PTA (GPTA).
M. Kerr +5 more
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