scholarly journals Are We There Yet? The Road to Gravitational Wave Detection

2005 ◽  
Vol 22 (3) ◽  
pp. 175-178 ◽  
Author(s):  
David E. McClelland
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Gravity Waves ◽  
Gravitational Wave Detection ◽  
The Road ◽  
Wave Detection ◽  
The Status ◽  
Laser Interferometers

AbstractGiant laser interferometers are currently ‘listening’ for gravitational waves but are they sensitive enough? I briefly review the status of the global effort to detect gravity waves and overview Australia's role.

scholarly journals Cosmology with Gravitational Waves in DES and LSST

2017 ◽  
Vol 13 (S338) ◽  
pp. 65-71
Author(s):  
Kenneth Herner ◽  
Marcelle Soares-Santos ◽  
James Annis
Keyword(s):  
Dark Energy ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Research Program ◽  
Next Generation ◽  
Energy Research ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
The Future ◽  
The Status

AbstractMotivated by the prospect of the wealth of data arising from the inauguration of the era of gravitational wave detection by ground-based interferometers the DES collaboration, in partnership with members of the LIGO collaboration and members of the astronomical community at large, have established a research program to search for their optical counterparts and to explore their use as cosmological probes. In this talk we present the status of our program and discuss prospects for establishing this new probe as part of the portfolio of the Dark Energy research program in the future, in particular for the next generation survey, LSST.

Optomechanics for Gravitational Wave Detection: From Resonant Bars to Next Generation Laser Interferometers

2020 ◽  
pp. 41-104
Author(s):  
David Blair ◽  
Li Ju ◽  
Yiqiu Ma
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Wave Spectrum ◽  
Historical Context ◽  
Next Generation ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Laser Interferometers

This chapter reviews the 40-year history that led to the first detection of gravitational waves, and goes on to outline techniques which will allow the detectors to be substantially improved. Following a review of the gravitational wave spectrum and the early attempts at detection, it emphasizes the theme of optomechanics, and the underlying physics of parametric transducers, which creates a connection between early resonant bar detectors and modern interferometers and techniques for enhancing their sensitivity. Developments are presented in an historical context, while themes and connections between earlier and later work are emphasized.

THE SENSITIVITY OF ANTENNAS FOR GRAVITATIONAL WAVE DETECTION

2002 ◽  
Vol 17 (03) ◽  
pp. 327-334
Author(s):  
GIULIO BRAUTTI ◽  
DOMENICO PICCA
Keyword(s):  
Coherent State ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Stationary State ◽  
Riemann Tensor ◽  
Quantum Calculation ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Term Linear

This work shows that the quantum calculation of the energy exchanged between gravitational waves and resonating antennas contains a term linear in the Riemann tensor if the oscillator is supposed to be in a coherent state, while it contains only quadratic terms if it is in a stationary state. In some cases the latter hypothesis, presently accepted in the literature, underestimates the sensitivity of GW antennas by several orders of magnitude. The authors show the need for the correction of the error, while its origin and consequences are explained.

scholarly journals Gravity’s Reverb: Listening to Space-Time, or Articulating the Sounds of Gravitational-Wave Detection

2016 ◽  
Vol 31 (4) ◽  
pp. 464-492 ◽  
Author(s):  
Stefan Helmreich
Keyword(s):  
Black Holes ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Sound Wave ◽  
Space Time ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Way Of Knowing ◽  
Sound Files ◽  
Bounce Back

In February 2016, U.S.-based astronomers announced that they had detected gravitational waves, vibrations in the substance of space-time. When they made the detection public, they translated the signal into sound, a “chirp,” a sound wave swooping up in frequency, indexing, scientists said, the collision of two black holes 1.3 billion years ago. Drawing on interviews with gravitational-wave scientists at MIT and interpreting popular representations of this cosmic audio, I ask after these scientists’ acoustemology—that is, what the anthropologist of sound Steven Feld would call their “sonic way of knowing and being.” Some scientists suggest that interpreting gravitational-wave sounds requires them to develop a “vocabulary,” a trained judgment about how to listen to the impress of interstellar vibration on the medium of the detector. Gravitational-wave detection sounds, I argue, are thus articulations of theories with models and of models with instrumental captures of the cosmically nonhuman. Such articulations, based on mathematical and technological formalisms—Einstein’s equations, interferometric observatories, and sound files—operate alongside less fully disciplined collections of acoustic, auditory, and even musical metaphors, which I call informalisms. Those informalisms then bounce back on the original articulations, leading to rhetorical reverb, in which articulations—amplified through analogies, similes, and metaphors—become difficult to fully isolate from the rhetorical reflections they generate. Filtering analysis through a number of accompanying sound files, this article contributes to the anthropology of listening, positing that scientific audition often operates by listening through technologies that have been tuned to render theories and their accompanying formalisms both materially explicit and interpretively resonant.

scholarly journals The progress of gravitational wave detection in China and its further physical application

2021 ◽  
Vol 2083 (2) ◽  
pp. 022046
Author(s):  
Zihan Liu ◽  
Hao Shen ◽  
Zeyu Xiao
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Basic Knowledge ◽  
Detection Methods ◽  
Speed Of Light ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wave Models ◽  
The Universe ◽  
Shed Light

Abstract Contemporarily, a gravitational wave is one of the most important approaches to gather information from the enormous universe. In short, a gravitational wave is a wave that carries energy, and it is created by the acceleration of massive celestial body propagation with a speed of light. This paper discusses the recent progress of gravitational wave detection in China and clarifies our own opinion on future development. Specifically, a basic description is first presented about the definition and basic knowledge for gravitational wave models and detection methods. Subsequently, this section contains the plan and achievement of the Chinese gravitational wave observatory. Finally, the usages and applications of the gravitational wave to help to detect more phenomena in the universe are demonstrated. These results shed light on a clearer picture of gravitational waves, which may offer a better understanding of the background, principle of detection, and the uses of gravitational waves, i.e., emphasizes its importance in modern astrophysics scientific researches.

scholarly journals A Spaceborne Multi-Arm Interferometer for VLF Gravitational Wave Detection. (The SMILE Project)

1988 ◽  
Vol 129 ◽  
pp. 321-322
Author(s):  
Allen Joel Anderson
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Low Frequency ◽  
Deep Space ◽  
Detection Capability ◽  
Gravitational Wave Detection ◽  
Very Low Frequency ◽  
Wave Detection ◽  
Designed Experiment ◽  
Spacecraft Tracking

This project would be the next step in our ability to detect very low frequency (VLF) gravitational waves and the first committed spaceborne designed experiment. Present Deep Space spacecraft tracking experiments are severely limited in their detection capability. It is proposed to construct a spaceborne multi-arm microwave interferometer using current elements of design applicable for the detection of VLF gravitational waves. The elements are outlined with particular emphasis placed on the utilization of small inexpensive get away special (GAS) modules currently under development at JPL for launch in the 1990's.

THE VIRGO INTERFEROMETER FOR GRAVITATIONAL WAVE DETECTION

2011 ◽  
Vol 20 (10) ◽  
pp. 2075-2079 ◽  
Author(s):  
T. ACCADIA ◽  
F. ACERNESE ◽  
F. ANTONUCCI ◽  
P. ASTONE ◽  
G. BALLARDIN ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Fused Silica ◽  
Scientific Data ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Fabry Perot ◽  
The Status

The Virgo interferometer for gravitational wave detection is described. During the commissioning phase that followed the first scientific data taking run an unprecedented sensitivity was obtained in the range 10–60 Hz. Since then an upgrade program has begun, with the aim of increasing the sensitivity, mainly through the introduction of fused silica wires to suspend mirrors and by increasing the Finesse of the Fabry–Perot cavities. Plans until the shutdown for the construction of the Advanced Virgo detector are given as well as the status of the upgrade.

scholarly journals Gravitational Waves from Neutron Stars: A Review

2015 ◽  
Vol 32 ◽  
Author(s):  
Paul D. Lasky
Keyword(s):  
Neutron Stars ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Gravitational Radiation ◽  
Superfluid Turbulence ◽  
Physical Processes ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Oscillation Modes ◽  
Stellar Oscillation

AbstractNeutron stars are excellent emitters of gravitational waves. Squeezing matter beyond nuclear densities invites exotic physical processes, many of which violently transfer large amounts of mass at relativistic velocities, disrupting spacetime and generating copious quantities of gravitational radiation. I review mechanisms for generating gravitational waves with neutron stars. This includes gravitational waves from radio and millisecond pulsars, magnetars, accreting systems, and newly born neutron stars, with mechanisms including magnetic and thermoelastic deformations, various stellar oscillation modes, and core superfluid turbulence. I also focus on what physics can be learnt from a gravitational wave detection, and where additional research is required to fully understand the dominant physical processes at play.

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.

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