Exploring Pulsar Timing Precision: A Comparative Study of Polarization Calibration Methods for NANOGrav Data from the Green Bank Telescope [PDF]
The Astrophysical JournalPulsar timing array experiments have recently uncovered evidence for a nanohertz gravitational wave background by precisely timing an ensemble of millisecond pulsars.
Lankeswar Dey +34 more
doaj +4 more sources
A coherent method for the detection and estimation of continuous gravitational wave signals using a pulsar timing array [PDF]
, 2014 The use of a high precision pulsar timing array is a promising approach to detecting gravitational waves in the very low frequency regime ($10^{-6} -10^{-9}$ Hz) that is complementary to the ground-based efforts (e.g., LIGO, Virgo) at high frequencies ($\
Jenet, Fredrick A. +2 more
core +6 more sources
Practical Methods for Continuous Gravitational Wave Detection using Pulsar Timing Data [PDF]
, 2012 Gravitational Waves (GWs) are tiny ripples in the fabric of space-time predicted by Einstein's General Relativity. Pulsar timing arrays (PTAs) are well poised to detect low frequency ($10^{-9}$ -- $10^{-7}$ Hz) GWs in the near future.
Corbin +16 more
core +6 more sources
Hyper-efficient model-independent Bayesian method for the analysis of pulsar timing data [PDF]
, 2013 A new model independent method is presented for the analysis of pulsar timing data and the estimation of the spectral properties of an isotropic gravitational wave background (GWB).
Alexander, Paul +6 more
core +4 more sources
Wide-band Timing of the Parkes Pulsar Timing Array UWL Data
The Astrophysical Journal, 2023 In 2018 an ultra–wide-bandwidth low-frequency (UWL) receiver was installed on the 64 m Parkes Radio Telescope, enabling observations with an instantaneous frequency coverage from 704 to 4032 MHz.
Małgorzata Curyło +17 more
doaj +1 more source
Multi-Messenger Astrophysics of a Millisecond Pulsar Orbiting around a Massive Black Hole
Universe, 2022 Extreme-mass-ratio and intermediate-mass-ratio binaries with a millisecond pulsar are gravitational-wave sources that emit also electromagnetic radiation.
Kinwah Wu
doaj +1 more source
The Green Bank North Celestial Cap Survey. VIII. 21 New Pulsar Timing Solutions
The Astrophysical Journal, 2023 We present timing solutions for 21 pulsars discovered in 350 MHz surveys using the Green Bank Telescope (GBT). All were discovered in the Green Bank North Celestial Cap pulsar survey, with the exception of PSR J0957−0619, which was found in the GBT 350 ...
W. Fiore +28 more
doaj +1 more source
A Pilot Study of Nulling in 22 Pulsars Using Mixture Modeling
The Astrophysical Journal, 2023 The phenomenon of pulsar nulling, observed as the temporary inactivity of a pulsar, remains poorly understood both observationally and theoretically.
Akash Anumarlapudi +3 more
doaj +1 more source
Decade-long Timing Study of the Black Widow Millisecond Pulsar J1544+4937
The 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
The 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