scholarly journals Quasi-monolithic mirror suspensions in ground-based gravitational-wave detectors: an overview and look to the future

2018 ◽  
Vol 376 (2120) ◽  
pp. 20170281 ◽  
Author(s):  
Anna-Maria A. van Veggel
Keyword(s):  
Gravitational Wave ◽  
Seismic Isolation ◽  
Thermal Noise ◽  
Fused Silica ◽  
New Era ◽  
The Future ◽  
Gravitational Wave Detectors ◽  
The Status ◽  
History Of ◽  
The Universe

At the commencement of a new era in astrophysics, with added information from direct detections of gravitational-wave (GW) signals, this paper is a testament to the quasi-monolithic suspensions of the test masses of the GW detectors that have enabled the opening of a new window on the universe. The quasi-monolithic suspensions are the final stages in the seismic isolation of the test masses in GW detectors, and are specifically designed to introduce as little thermal noise as possible. The history of the development of the fused-silica quasi-monolithic suspensions, which have been so essential for the first detections of GWs, is outlined and a glimpse into the status of research towards quasi-monolithic suspensions made of sapphire and silicon is given. This article is part of a discussion meeting issue ‘The promises of gravitational-wave astronomy’.

scholarly journals Thermal noise from optical coatings in gravitational wave detectors

2006 ◽  
Vol 45 (7) ◽  
pp. 1569 ◽  
Author(s):  
Gregory M. Harry ◽  
Helena Armandula ◽  
Eric Black ◽  
D. R. M. Crooks ◽  
Gianpietro Cagnoli ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Thermal Noise ◽  
Optical Coatings ◽  
Gravitational Wave Detectors

The Predicament of Europe’s ‘Last Dictator’

2021 ◽  
pp. 223386592110183
Author(s):  
Yuliya Brel-Fournier ◽  
Minion K.C. Morrison
Keyword(s):  
Social Contract ◽  
Presidential Election ◽  
Status Quo ◽  
Political Crisis ◽  
Modern History ◽  
Electoral Fraud ◽  
The Future ◽  
The Status ◽  
History Of

Belarusian citizens elected their first president in 1994. More than 20 years later, in October 2015, the same person triumphantly won the fifth consecutive presidential election. In August 2020, President Lukashenko’s attempt to get re-elected for the sixth time ended in months’ long mass protests against the electoral fraud, unspeakable violence used by the riot police against peaceful protesters and the deepest political crisis in the modern history of Belarus. This article analyzes how and why the first democratically elected Belarusian president attained this long-serving status. It suggests that his political longevity was conditioned by a specific social contract with the society that was sustained for many years. In light of the recent events, it is obvious that the contract is breached with the regime no longer living up to the bargain with the Belarusian people. As a result, the citizens seem unwilling to maintain their obligation for loyalty. We analyze the escalating daily price for maintaining the status quo and conclude considering the possible implications of this broken pact for the future of Belarus.

scholarly journals The status of laser interferometer gravitational-wave detectors

2006 ◽  
Vol 39 ◽  
pp. 25-31 ◽  
Author(s):  
F J Raab ◽  
the Ligo Scientific collaboration
Keyword(s):  
Gravitational Wave ◽  
Laser Interferometer ◽  
Gravitational Wave Detectors ◽  
The Status

scholarly journals Challenges in thermal noise for 3rd generation of gravitational wave detectors

2010 ◽  
Vol 43 (2) ◽  
pp. 593-622 ◽  
Author(s):  
Ronny Nawrodt ◽  
Sheila Rowan ◽  
Jim Hough ◽  
Michele Punturo ◽  
Fulvio Ricci ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Thermal Noise ◽  
Gravitational Wave Detectors

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.

Sub-Millisecond Absolute Timing: Toward an Actual Gravitational Observatory

1997 ◽  
Vol 12 (30) ◽  
pp. 2261-2264 ◽  
Author(s):  
M. Cerdonio ◽  
V. Crivelli Visconti ◽  
A. Ortolan ◽  
G. Prodi ◽  
L. Taffarello ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Global Network ◽  
Necessary Condition ◽  
The Future ◽  
Gravitational Wave Detectors

In this letter we report the results we obtained experimentally demonstrating the feasibility of absolute timing of impulsive gravitational wave signals by means of a resonant bar detector. We reached a resolution of less than 20 μs for SNR ≥ 10. We also discuss the important prospects this result opens for the present and for the future, as a necessary condition for the implementation of a global network of gravitational wave detectors.

scholarly journals Current and future status of gravitational wave astronomy - gravitational wave facilities

2006 ◽  
Vol 2 (14) ◽  
pp. 526-527
Author(s):  
Sheila Rowan
Keyword(s):  
Gravitational Wave ◽  
Gravitational Radiation ◽  
Direct Detection ◽  
Current Status ◽  
Gravitational Wave Detector ◽  
Paper Briefly ◽  
Wave Detector ◽  
Gravitational Wave Detectors ◽  
The Status ◽  
Future Status

AbstractCurrently a network of interferometric gravitational wave detectors is in operation around the globe, in parallel with existing acoustic bar-type detectors. Searches are underway aimed at the first direct detection of gravitational radiation from astrophysical sources. This paper briefly summarizes the current status of operating gravitational wave facilities, plans for future detector upgrades, and the status of the planned space-based gravitational wave detector LISA.

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