scholarly journals Argon bubble formation in tantalum oxide-based films for gravitational wave interferometer mirrors

2021 ◽  
Vol 11 (3) ◽  
pp. 707
Author(s):  
Rebecca B. Cummings ◽  
Riccardo Bassiri ◽  
Iain W. Martin ◽  
Ian MacLaren
Keyword(s):  
Gravitational Wave ◽  
Bubble Formation ◽  
Tantalum Oxide ◽  
Argon Bubble ◽  
Gravitational Wave Interferometer

scholarly journals Earth as a Gravitational-Wave Interferometr

2019 ◽  
Vol 224 ◽  
pp. 03012
Author(s):  
Vadim Il’chenko
Keyword(s):  
Gravitational Wave ◽  
Upper Mantle ◽  
Oscillatory System ◽  
Average Depth ◽  
Lunar Tide ◽  
Crust And Upper Mantle ◽  
The Earth ◽  
Order Of Magnitude ◽  
Gravitational Wave Interferometer ◽  
Gravitational Influence

Based on the principle of Equivalence of Gravitating Masses (EGM) and tectonostratigraphic model of the Earth outer shell structure (the Earth crust and upper mantle), the average depth of the lunar mass gravitational influence on the Earth was calculated as ~1600 km. The developed model is based on the mechanism of rocks tectonic layering of the Earth crust-mantle shell as an oscillatory system with dynamic conditions of a standing wave, regularly excited by the lunar tide and immediately passing into the damping mode. After comparing the average depth of solid lunar tide impact of ~1600 km with the height of the solid lunar tide “hump” on the Earth surface of 0.5 m, a “tensile strain” was calculated with an amplitude only one order of magnitude larger than the amplitude of the gravitational wave recorded by the Advanced LIGO interferometer: A≈10-18 m (the merger result of a black holes pair ca 1.3 Ga ago). The results of the present study suggest that the crust-mantle shell of the Earth may be used as a gravitational-wave interferometer.

Argon bubble formation in the sputtering of PtSi

1978 ◽  
Vol 32 (11) ◽  
pp. 716-718 ◽  
Author(s):  
Z. L. Liau ◽  
T. T. Sheng
Keyword(s):  
Bubble Formation ◽  
Argon Bubble

Improved sensitivity in a gravitational wave interferometer and implications for LIGO

1996 ◽  
Vol 218 (3-6) ◽  
pp. 157-163 ◽  
Author(s):  
A. Abramovici ◽  
W. Althouse ◽  
J. Camp ◽  
D. Durance ◽  
J.A. Giaime ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Gravitational Wave Interferometer

scholarly journals Probing dark matter clumps, strings and domain walls with gravitational wave detectors

2021 ◽  
Vol 81 (9) ◽  
Author(s):  
Joerg Jaeckel ◽  
Sebastian Schenk ◽  
Michael Spannowsky
Keyword(s):  
Dark Matter ◽  
Gravitational Wave ◽  
Domain Walls ◽  
Matter Power Spectrum ◽  
Pulsar Timing ◽  
Astrophysical Objects ◽  
Gravitational Wave Interferometer ◽  
Moderate Sensitivity ◽  
Gravitational Pull ◽  
Square Kilometer Array

AbstractGravitational wave astronomy has recently emerged as a new way to study our Universe. In this work, we survey the potential of gravitational wave interferometers to detect macroscopic astrophysical objects comprising the dark matter. Starting from the well-known case of clumps we expand to cosmic strings and domain walls. We also consider the sensitivity to measure the dark matter power spectrum on small scales. Our analysis is based on the fact that these objects, when traversing the vicinity of the detector, will exert a gravitational pull on each node of the interferometer, in turn leading to a differential acceleration and corresponding Doppler signal, that can be measured. As a prototypical example of a gravitational wave interferometer, we consider signals induced at LISA. We further extrapolate our results to gravitational wave experiments sensitive in other frequency bands, including ground-based interferometers, such as LIGO, and pulsar timing arrays, e.g. ones based on the Square Kilometer Array. Assuming moderate sensitivity improvements beyond the current designs, clumps, strings and domain walls may be within reach of these experiments.

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