Noise in pulsar timing arrays

@article{Wang2015NoiseIP,
  title={Noise in pulsar timing arrays},
  author={Yan Wang},
  journal={arXiv: Instrumentation and Methods for Astrophysics},
  year={2015}
}
  • Y. Wang
  • Published 3 May 2015
  • Physics
  • arXiv: Instrumentation and Methods for Astrophysics
To successfully detect gravitational waves with pulsar timing arrays, we need to have a comprehensive understanding of the physical origins and statistical characteristics of the noise in pulse arrival times and identify mitigation methods to reduce the noise. In this paper we will review radiometer noise, phase jitter noise and timing noise in the noise budget of pulsar timing and show various efforts used to reduce them. We will briefly discuss the results of an overall assessment of the… 

Tables from this paper

Prospects for gravitational wave astronomy with next generation large-scale pulsar timing arrays
Next generation radio telescopes, namely the Five-hundred-meter Aperture Spherical Telescope (FAST) and the Square Kilometer Array (SKA), will revolutionize the pulsar timing arrays (PTAs) based
Radio Pulsars: Testing Gravity and Detecting Gravitational Waves
Pulsars are the most stable macroscopic clocks found in nature. Spinning with periods as short as a few milliseconds, their stability can supersede that of the best atomic clocks on Earth over
Statistical analyses for NANOGrav 5-year timing residuals
In pulsar timing, timing residuals are the differences between the observed times of arrival and the predictions from the timing model. A comprehensive timing model will produce featureless
Coherent network analysis for continuous gravitational wave signals in a pulsar timing array: Pulsar phases as extrinsic parameters
Supermassive black hole binaries are one of the primary targets for gravitational wave searches using pulsar timing arrays. Gravitational wave signals from such systems are well represented by
Fundamental physics with the Square Kilometre Array
Abstract The Square Kilometre Array (SKA) is a planned large radio interferometer designed to operate over a wide range of frequencies, and with an order of magnitude greater sensitivity and survey
Iterative time-domain method for resolving multiple gravitational wave sources in Pulsar Timing Array data
Yi-Qian Qian, Soumya D. Mohanty, and Yan Wang MOE Key Laboratory of Fundamental Physical Quantities Measurements, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF, Department of
Wave number selection in the presence of noise: Experimental results.
TLDR
The role of noise as well as the behaviour of the amplitudes of the competing modes in their stages of damping and growth were determined.
Observability of dark matter substructure with pulsar timing correlations
Dark matter substructure on small scales is currently weakly constrained, and its study may shed light on the nature of the dark matter. In this work we study the gravitational effects of dark matter

References

SHOWING 1-10 OF 34 REFERENCES
Detecting the Stochastic Gravitational Wave Background Using Pulsar Timing
The direct detection of gravitational waves is a major goal of current astrophysics. We provide details of a new method for detecting a stochastic background of gravitational waves using pulsar
ASSESSING THE ROLE OF SPIN NOISE IN THE PRECISION TIMING OF MILLISECOND PULSARS
We investigate rotational spin noise (referred to as timing noise) in non-accreting pulsars: millisecond pulsars, canonical pulsars, and magnetars. Particular attention is placed on quantifying the
Limitations in timing precision due to single-pulse shape variability in millisecond pulsars
High-sensitivity radio-frequency observations of millisecond pulsars usually show stochastic, broad-band, pulse-shape variations intrinsic to the pulsar emission process. These variations induce
The International Pulsar Timing Array project: using pulsars as a gravitational wave detector
The International Pulsar Timing Array project combines observations of pulsars from both northern and southern hemisphere observatories with the main aim of detecting ultra-low frequency (similar to
The European Pulsar Timing Array: current efforts and a LEAP toward the future
The European Pulsar Timing Array (EPTA) is a multi-institutional, multi-telescope collaboration, with the goal of using high-precision pulsar timing to directly detect gravitational waves. In this
Limits on the Stochastic Gravitational Wave Background from the North American Nanohertz Observatory for Gravitational Waves
We present an analysis of high-precision pulsar timing data taken as part of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) project. We have observed 17 pulsars for a
The stochastic background: scaling laws and time to detection for pulsar timing arrays
We derive scaling laws for the signal-to-noise ratio of the optimal cross-correlation statistic, and show that the large power-law increase of the signal-to-noise ratio as a function of the the
The Parkes Pulsar Timing Array Project
Abstract A ‘pulsar timing array’ (PTA), in which observations of a large sample of pulsars spread across the celestial sphere are combined, allows investigation of ‘global’ phenomena such as a
An analysis of the timing irregularities for 366 pulsars
We provide an analysis of timing irregularities observed for 366 pulsars. Observations were obtained using the 76-m Lovell radio telescope at the Jodrell Bank Observatory over the past 36 years.
tempo2, a new pulsar timing package ¿ II. The timing model and precision estimates
Tempo2 is a new software package for the analysis of pulsar pulse times of arrival. In this paper we describe in detail the timing model used by tempo2, and discuss limitations on the attainable
...
1
2
3
4
...