Results 11 to 20 of about 613 (180)

Decade-long Timing Study of the Black Widow Millisecond Pulsar J1544+4937

open access: yesThe Astrophysical Journal, 2023
Results from 11 yr of radio timing for the eclipsing black widow millisecond pulsar (MSP) binary J1544+4937 is presented in this paper. We report a phase-connected timing model for this MSP, using observations with the Giant Metrewave Radio Telescope ...
Sangita Kumari   +3 more
doaj   +1 more source

Scattering Delay Mitigation in High-accuracy Pulsar Timing: Cyclic Spectroscopy Techniques

open access: yesThe Astrophysical Journal, 2023
We simulate scattering delays from the interstellar medium to examine the effectiveness of three estimators in recovering these delays in pulsar timing data. Two of these estimators use the more traditional process of fitting autocorrelation functions to
Jacob E. Turner   +5 more
doaj   +1 more source

PRACTICAL METHODS FOR CONTINUOUS GRAVITATIONAL WAVE DETECTION USING PULSAR TIMING DATA

open access: yesThe Astrophysical Journal, 2012
submitted to ...
Ellis, J. A.   +2 more
openaire   +3 more sources

Mapping gravitational-wave backgrounds using methods from CMB analysis: Application to pulsar timing arrays [PDF]

open access: yesPhysical Review D, 2014
48 pages, 16 figures, to appear in Phys. Rev.
Gair, Jonathan R.   +3 more
openaire   +4 more sources

Pulsar timing methods for evaluating dispersion measure time series

open access: yesAstronomy & Astrophysics
Context. Radio pulsars can be used for many studies, including the investigation of the ionized interstellar medium and the solar wind via their dispersive effects. These phenomena affect the high-precision timing of pulsars and are among the main sources of noise in experiments searching for low-frequency gravitational waves in pulsar data. Aims.
F. Iraci   +11 more
openaire   +4 more sources

PSR J1838−0655: X-Ray Observations with NICER and NuSTAR

open access: yesThe Astrophysical Journal
We report on the timing and spectral properties of PSR J1838-0655 using joint observations from the Neutron Star Interior Composition Explorer (NICER) and the Nuclear Spectroscopic Telescope Array (NuSTAR). By disentangling the pulsar’s emission from its
Xian-Ao Wang   +7 more
doaj   +1 more source

Timing gamma-ray pulsars using Gibbs sampling

open access: yesAstronomy & Astrophysics
Timing analyses of gamma-ray pulsars in the Fermi Large Area Telescope (LAT) dataset can provide sensitive probes of many astrophysical processes, including timing noise in young pulsars, orbital period variations in redback binaries, and the stochastic ...
Clark C. J.   +3 more
doaj   +1 more source

An evidence based time-frequency search method for gravitational waves from pulsar glitches

open access: yesJournal of Physics: Conference Series, 2008
We review and expand on a Bayesian model selection technique for the detection of gravitational waves from neutron star ring-downs associated with pulsar glitches. The algorithm works with power spectral densities constructed from overlapping time segments of gravitational wave data.
Clark, J.   +3 more
openaire   +2 more sources

Machine Learning‐Assisted Design and Performance Prediction of a Compact Dual‐Band Polarization‐Insensitive THz Metamaterial Absorber for Skin‐Cancer‐Related Refractive‐Index Sensing

open access: yesAdvanced Electronic Materials, EarlyView.
A compact QASRR‐based THz metamaterial absorber enables polarization‐insensitive dual‐band absorption and skin‐cancer‐related refractive‐index sensing through measurable resonance shifts. Field, surface‐current, and circuit analyses clarify the dual‐resonance mechanism, while StackNet‐assisted prediction accurately estimates the simulated absorption ...
Md. Murad Kabir Nipun   +5 more
wiley   +1 more source

Interventional therapies for chronic heart failure: An overview of recent developments

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1081-1094, April 2025.
Abstract Heart failure (HF), the final manifestation of most cardiovascular diseases, has become a major global health concern, affecting millions of individuals. Despite basic drug treatments, patients present with high morbidity and mortality rates. However, recent advancements in interventional therapy have shown promising results in improving the ...
Bingchen Guo   +7 more
wiley   +1 more source

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