scholarly journals Pulsars and Gravitational Wave Detection

2005 ◽  
Vol 22 (3) ◽  
pp. 179-183 ◽  
Author(s):  
George Hobbs
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Radio Telescope ◽  
Gravitational Wave Detector ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wave Detector ◽  
Stochastic Background ◽  
Pulsar Timing ◽  
Pulsar Timing Array

AbstractThe number of known millisecond pulsars has dramatically increased in the last few years. Regular observations of these pulsars may allow gravitational waves with frequencies ∼10−9 Hz to be detected. A ‘pulsar timing array’ is therefore complimentary to other searches for gravitational waves using ground-based or space-based interferometers that are sensitive to much higher frequencies. In this review we describe (1) the basic methods for using an array of pulsars as a gravitational wave detector, (2) the sources of the potentially detectable waves, (3) current limits on individual sources and a stochastic background, and (4) the new project recently started using the Parkes radio telescope.

scholarly journals Gravitational-Wave Detection Using Pulsars: Status of the Parkes Pulsar Timing Array Project

2009 ◽  
Vol 26 (2) ◽  
pp. 103-109 ◽  
Author(s):  
G. B. Hobbs ◽  
M. Bailes ◽  
N. D. R. Bhat ◽  
S. Burke-Spolaor ◽  
D. J. Champion ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Direct Detection ◽  
Low Frequency ◽  
Current Status ◽  
Binary Black Holes ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Pulsar Timing ◽  
Pulsar Timing Array

AbstractThe first direct detection of gravitational waves may be made through observations of pulsars. The principal aim of pulsar timing-array projects being carried out worldwide is to detect ultra-low frequency gravitational waves (f ∼ 10−9–10−8 Hz). Such waves are expected to be caused by coalescing supermassive binary black holes in the cores of merged galaxies. It is also possible that a detectable signal could have been produced in the inflationary era or by cosmic strings. In this paper, we review the current status of the Parkes Pulsar Timing Array project (the only such project in the Southern hemisphere) and compare the pulsar timing technique with other forms of gravitational-wave detection such as ground- and space-based interferometer systems.

scholarly journals China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Keyword(s):  
Gravitational Wave ◽  
Hubble Constant ◽  
Gravitational Wave Detector ◽  
Expanding Universe ◽  
Satellite Mission ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wave Detector ◽  
Wave Antenna ◽  
Gravitational Wave Antenna

AbstractIn this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based gravitational wave detectors which can measure the Hubble constant within a 2% uncertainty in the next five years by the standard siren method. Taiji is a Chinese space borne gravitational wave detection mission planned for launch in the early 2030 s. The pilot satellite mission Taiji-1 has been launched in August 2019 to verify the feasibility of Taiji. The results of a few technologies tested on Taiji-1 are presented in this paper.

scholarly journals Astrophysics Milestones for Pulsar Timing Array Gravitational-wave Detection

2021 ◽  
Vol 911 (2) ◽  
pp. L34
Author(s):  
Nihan S. Pol ◽  
Stephen R. Taylor ◽  
Luke Zoltan Kelley ◽  
Sarah J. Vigeland ◽  
Joseph Simon ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Pulsar Timing ◽  
Pulsar Timing Array

scholarly journals The International Pulsar Timing Array project: using pulsars as a gravitational wave detector

2010 ◽  
Vol 27 (8) ◽  
pp. 084013 ◽  
Author(s):  
G Hobbs ◽  
A Archibald ◽  
Z Arzoumanian ◽  
D Backer ◽  
M Bailes ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Gravitational Wave Detector ◽  
Wave Detector ◽  
Pulsar Timing ◽  
Pulsar Timing Array

scholarly journals Pulsar science at the Sardinia Radio Telescope

2017 ◽  
Vol 13 (S337) ◽  
pp. 392-393
Author(s):  
D. Perrodin ◽  
M. Burgay ◽  
A. Corongiu ◽  
M. Pilia ◽  
A. Possenti ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Radio Telescope ◽  
Galactic Center ◽  
Active Surface ◽  
Radio Bursts ◽  
Extraterrestrial Intelligence ◽  
Wave Detection ◽  
Pulsar Timing ◽  
Wide Range ◽  
Pulsar Timing Array

AbstractThe Sardinia Radio Telescope (SRT) is a modern, fully-steerable 64-m dish located in San Basilio, Sardinia (Italy). It is characterized by an active surface that allows it to cover a wide range of radio frequencies (300 MHz to 100 GHz). During SRT’s commissioning phase, we installed the hardware and software needed for pulsar observations. Since then, SRT has taken part in Large European Array for Pulsars and European Pulsar Timing Array observations for the purpose of gravitational wave detection. We have installed a new S-band receiver that will allow us to search for pulsars in the Galactic Center. We also plan to combine our efforts to search for Extraterrestrial Intelligence (SETI) with the search for pulsars and Fast Radio Bursts.

scholarly journals Implication of pulsar timing array experiments on cosmological gravitational wave detection

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Jun’ichi Yokoyama
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Electromagnetic Waves ◽  
Precision Measurements ◽  
Observational Result ◽  
Wave Detection ◽  
Pulsar Timing ◽  
Gravitational Wave Background ◽  
Pulsar Timing Array ◽  
The Universe

AbstractGravitational waves provide a new probe of the Universe which can reveal a number of cosmological and astrophysical phenomena that cannot be observed by electromagnetic waves. Different frequencies of gravitational waves are detected by different means. Among them, precision measurements of pulsar timing provides a natural detector for gravitational waves with light-year scale wavelengths. In this review, first a basic framework to detect a stochastic gravitational wave background using pulsar timing array is introduced, and then possible interpretations of the latest observational result of 12.5-year NANOGrav data are described.

scholarly journals Pulsar Timing Arrays

2015 ◽  
Vol 11 (A29B) ◽  
pp. 321-328
Author(s):  
Maura McLaughlin
Keyword(s):  
Gravitational Wave ◽  
High Precision ◽  
Source Characterization ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Pulsar Timing ◽  
Noise Characterization ◽  
Pulsar Timing Array ◽  
Future Growth ◽  
Broad Overview

AbstractI describe the concept of a pulsar timing array and give broad overview of the construction of a pulsar timing array, methods for high-precision timing and noise characterization, and algorithms for gravitational wave detection and source characterization. I then provide an overview of worldwide pulsar timing programs and the scale and sensitivity of the pulsar timing array efforts, with particular attention to the International Pulsar Timing Array (IPTA). I discuss the most recent results from pulsar timing arrays, emphasizing the gravitational wave detection efforts in particular. Finally, I describe the anticipated future growth in participants, telescopes, pulsars, and sensitivity of the IPTA, highlighting the transformational advances that it will enable over the next decade.

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