Results 11 to 20 of about 13,579 (182)

Hyper-efficient model-independent Bayesian method for the analysis of pulsar timing data [PDF]

open access: yesPhysical Review D, 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). We show that by rephrasing the likelihood we are able to eliminate the most costly aspects of computation normally associated with this type of data analysis.
Lentati, L.   +6 more
openaire   +6 more sources

A COHERENT METHOD FOR THE DETECTION AND PARAMETER ESTIMATION OF CONTINUOUS GRAVITATIONAL WAVE SIGNALS USING A PULSAR TIMING ARRAY [PDF]

open access: yesThe Astrophysical Journal, 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 ($\sim 10 -10^3$ Hz) and space-based ones (e.g., LISA) at low frequencies ($10^{-4} -10^{-1}$ Hz). One
Yan Wang   +2 more
openaire   +4 more sources

Exploring Pulsar Timing Precision: A Comparative Study of Polarization Calibration Methods for NANOGrav Data from the Green Bank Telescope

open access: yesThe Astrophysical Journal
Pulsar 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   +3 more sources

Applying clock comparison methods to pulsar timing observations [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2021
ABSTRACT Frequency metrology outperforms any other branch of metrology in accuracy (parts in 10−16) and small fluctuations (<10−17). In turn, among celestial bodies, the rotation speed of millisecond pulsars is by far the most stable (<10−18). Therefore, the precise measurement of the time of arrival (TOA) of pulsar signals
Siyuan Chen   +2 more
openaire   +4 more sources

Augmentation Method for X-Ray Pulsar Navigation Using Time Difference of Arrival and Range Measurement, Based on Polarization Encoded Pulse Position Modulation

open access: yesAerospace
This 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.
Rong Jiao, Hua Zhang
doaj   +2 more sources

Wide-band Timing of the Parkes Pulsar Timing Array UWL Data

open access: yesThe 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

Iterative time-domain method for resolving multiple gravitational wave sources in pulsar timing array data

open access: yesPhysical Review D, 2022
18 pages, 8 figures, appendix A was changed to further clarify AvPhase, submitted to ...
Yi-Qian Qian   +2 more
openaire   +2 more sources

Multi-Messenger Astrophysics of a Millisecond Pulsar Orbiting around a Massive Black Hole

open access: yesUniverse, 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

open access: yesThe 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

Home - About - Disclaimer - Privacy