scholarly journals The third and a half-post-Newtonian gravitational wave quadrupole mode for quasi-circular inspiralling compact binaries

2012 ◽  
Vol 29 (17) ◽  
pp. 175004 ◽  
Author(s):  
Guillaume Faye ◽  
Sylvain Marsat ◽  
Luc Blanchet ◽  
Bala R Iyer
Keyword(s):  
Gravitational Wave ◽  
Quadrupole Mode ◽  
Compact Binaries ◽  
The Third

scholarly journals Virgo and Gravitational-Wave Computing in Europe

2020 ◽  
Vol 245 ◽  
pp. 07050
Author(s):  
Stefano Bagnasco
Keyword(s):  
Gravitational Wave ◽  
Current Status ◽  
Low Latency ◽  
Observational Period ◽  
Compact Binaries ◽  
The Third ◽  
Compact Binary ◽  
Continuous Waves ◽  
The Us ◽  
Wave Event

Advanced Virgo is an interferometer for the detection of gravitational waves at the European Gravitational Observatory in Italy. Along with the two Advanced LIGO interferometers in the US, Advanced Virgo is being used to collect data from astrophysical sources such as compact binary coalescences and is currently running the third observational period, collecting gravitational wave event candidates at a rate of more than once per week. Data from the interferometer are processed by running search pipelines for several expected signals, from coalescing compact binaries to continuous waves and burst events. Furthermore, detector characterisation studies are run. Some of the processing needs to be done with low latency, to be able to provide triggers for other observatories and make multi-messenger observations possible. Deep searches are run offline on external computing centres. Thus, data needs also to be reliably and promptly distributed from the EGO site to computer centres in Europe and the US for further analysis and archival storage. Two of the defining characteristics of Virgo computing are the heterogeneity of the activities and the need to interoperate with LIGO. A very wide array of analysis pipelines differing in scientific target, implementation details and running environment assumptions have to be allowed to run ubiquitously and uniformly on dedicated resources and, in perspective, on heterogeneous infrastructures. The current status, possible strategies and outlook of Virgo computing are discussed.

scholarly journals Gravitational-wave amplitudes for compact binaries in eccentric orbits at the third post-Newtonian order: Tail contributions and postadiabatic corrections

2019 ◽  
Vol 100 (4) ◽  
Author(s):  
Yannick Boetzel ◽  
Chandra Kant Mishra ◽  
Guillaume Faye ◽  
Achamveedu Gopakumar ◽  
Bala R. Iyer
Keyword(s):  
Gravitational Wave ◽  
Compact Binaries ◽  
The Third ◽  
Eccentric Orbits

scholarly journals Gravitational-wave amplitudes for compact binaries in eccentric orbits at the third post-Newtonian order: Memory contributions

2019 ◽  
Vol 100 (8) ◽  
Author(s):  
Michael Ebersold ◽  
Yannick Boetzel ◽  
Guillaume Faye ◽  
Chandra Kant Mishra ◽  
Bala R. Iyer ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Compact Binaries ◽  
The Third ◽  
Eccentric Orbits

scholarly journals A Gravitational-Wave Perspective on Neutron-Star Seismology

Universe ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 97
Author(s):  
Nils Andersson
Keyword(s):  
Neutron Star ◽  
Neutron Stars ◽  
Gravitational Wave ◽  
Fundamental Mode ◽  
Compact Binaries

We provide a bird’s-eye view of neutron-star seismology, which aims to probe the extreme physics associated with these objects, in the context of gravitational-wave astronomy. Focussing on the fundamental mode of oscillation, which is an efficient gravitational-wave emitter, we consider the seismology aspects of a number of astrophysically relevant scenarios, ranging from transients (like pulsar glitches and magnetar flares), to the dynamics of tides in inspiralling compact binaries and the eventual merged object and instabilities acting in isolated, rapidly rotating, neutron stars. The aim is not to provide a thorough review, but rather to introduce (some of) the key ideas and highlight issues that need further attention.

scholarly journals Eccentricity evolution of compact binaries and applications to gravitational-wave physics

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
Vitor Cardoso ◽  
Caio F. B. Macedo ◽  
Rodrigo Vicente
Keyword(s):  
Gravitational Wave ◽  
Compact Binaries

scholarly journals Biases in parameter estimation from overlapping gravitational-wave signals in the third-generation detector era

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
Anuradha Samajdar ◽  
Justin Janquart ◽  
Chris Van Den Broeck ◽  
Tim Dietrich
Keyword(s):  
Parameter Estimation ◽  
Gravitational Wave ◽  
Third Generation ◽  
The Third
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