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.

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 Low frequency gravitational wave detection with ground-based atom interferometer arrays

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
W. Chaibi ◽  
R. Geiger ◽  
B. Canuel ◽  
A. Bertoldi ◽  
A. Landragin ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Low Frequency ◽  
Atom Interferometer ◽  
Gravitational Wave Detection ◽  
Wave Detection

First results from the pisa seismic noise super-attenuator for low frequency gravitational wave detection

1988 ◽  
Vol 132 (5) ◽  
pp. 237-240 ◽  
Author(s):  
R. Del Fabbro ◽  
A. Di Virgilio ◽  
A. Giazotto ◽  
H. Kautzky ◽  
V. Montelatici ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Seismic Noise ◽  
Low Frequency ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
First Results

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.

scholarly journals PULSAR TIMING ARRAYS

2013 ◽  
Vol 22 (01) ◽  
pp. 1341008 ◽  
Author(s):  
BHAL CHANDRA JOSHI
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Low Frequency ◽  
Radio Pulsars ◽  
Very Low Frequency ◽  
Pulsar Timing ◽  
Gravitational Wave Background ◽  
Pulsar Timing Array ◽  
Current Operating

In the last decade, the use of an ensemble of radio pulsars to constrain the characteristic strain caused by a stochastic gravitational wave background has advanced the cause of detection of very low frequency gravitational waves (GWs) significantly. This electromagnetic means of GW detection, called Pulsar Timing Array (PTA), is reviewed in this paper. The principle of operation of PTA, the current operating PTAs and their status are presented along with a discussion of the main challenges in the detection of GWs using PTA.

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.

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