scholarly journals Opening a new window on the Universe: the future Gravitational Wave detectors

2013 ◽  
Vol 44 (2) ◽  
pp. 16-20 ◽  
Author(s):  
Michele Punturo
Keyword(s):  
Gravitational Wave ◽  
The Future ◽  
Gravitational Wave Detectors ◽  
The Universe

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’.

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 Gravitational-wave astronomy: delivering on the promises

2018 ◽  
Vol 376 (2120) ◽  
pp. 20170279 ◽  
Author(s):  
B. F. Schutz
Keyword(s):  
Black Holes ◽  
Neutron Stars ◽  
Gravitational Wave ◽  
Binary Black Holes ◽  
Frequency Bands ◽  
The Future ◽  
Binary Neutron Stars ◽  
The Universe

Now that LIGO and Virgo have begun to detect gravitational-wave events with regularity, the field of gravitational-wave astronomy is beginning to realize its promise. Binary black holes and, very recently, binary neutron stars have been observed, and we are already learning much from them. The future, with improved sensitivity, more detectors and detectors like LISA in different frequency bands, has even more promise to open a completely hidden side of the Universe to our exploration. This article is part of a discussion meeting issue ‘The promises of gravitational-wave astronomy’.

scholarly journals The Stochastic Gravitational Wave Background from Magnetars

Universe ◽  
2021 ◽  
Vol 7 (10) ◽  
pp. 381
Author(s):  
Sourav Roy Chowdhury ◽  
Maxim Khlopov
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Neutron Stars ◽  
Gravitational Wave ◽  
Rotation Axis ◽  
Potential Candidate ◽  
Gravitational Wave Detectors ◽  
Wave Emission ◽  
Gravitational Wave Background ◽  
The Universe

Magnetars have already been a potential candidate as gravitational wave sources that could be detected by current and future terrestrial as well as ground-based gravitational wave detectors. In this article, we focus on the gravitational wave emission from the distorted rotating neutron stars. The deformation is assumed to be symmetric around an axis that is perpendicular to the rotation axis. The form is applied in the context of a neutron star whose magnetic field has been deformed on its own. By introducing the effects from all magnetars in the Universe, based on various proposed magnetic field configurations, such as poloidal and toroidal, the stochastic gravitational wave background can be generated. We choose to figure out exactly how the observations of the stochastic gravitational wave background should be used to understand much more about physics correlated with the magnetar behavior, based on the restriction on the ellipticity of the magnetar.

A Rapture of the Nerds? A Comparison between Transhumanist Eschatology and Christian Parousia

2019 ◽  
Vol 24 (2) ◽  
pp. 343-367
Author(s):  
Roberto Paura
Keyword(s):  
Human Brain ◽  
Point Theory ◽  
The Body ◽  
Christian Theology ◽  
Human Beings ◽  
Human Species ◽  
The Future ◽  
The Creation ◽  
The Universe

Transhumanism is one of the main “ideologies of the future” that has emerged in recent decades. Its program for the enhancement of the human species during this century pursues the ultimate goal of immortality, through the creation of human brain emulations. Therefore, transhumanism offers its fol- lowers an explicit eschatology, a vision of the ultimate future of our civilization that in some cases coincides with the ultimate future of the universe, as in Frank Tipler’s Omega Point theory. The essay aims to analyze the points of comparison and opposition between transhumanist and Christian eschatologies, in particular considering the “incarnationist” view of Parousia. After an introduction concern- ing the problems posed by new scientific and cosmological theories to traditional Christian eschatology, causing the debate between “incarnationists” and “escha- tologists,” the article analyzes the transhumanist idea of mind-uploading through the possibility of making emulations of the human brain and perfect simulations of the reality we live in. In the last section the problems raised by these theories are analyzed from the point of Christian theology, in particular the proposal of a transhuman species through the emulation of the body and mind of human beings. The possibility of a transhumanist eschatology in line with the incarnationist view of Parousia is refused.

Sign in / Sign up

Export Citation Format

Share Document