scholarly journals Fine-Tuning the Optical Design of the Advanced Virgo+ Gravitational-Wave Detector Using Binary-Neutron Star Signals

Galaxies ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 86
Author(s):  
Jonathon Baird ◽  
Matteo Barsuglia
Keyword(s):  
Neutron Star ◽  
Gravitational Wave ◽  
Optical Design ◽  
Fine Tuning ◽  
Second Phase ◽  
Gravitational Wave Detector ◽  
Binary Neutron Star ◽  
Wave Detector ◽  
Fine Tune ◽  
Walk Algorithm

Advanced Virgo+ is a major upgrade of the Advanced Virgo gravitational-wave detector aiming to increase sensitivity in terms of binary neutron star (BNS) range by a factor 3–5 in the next few years. In this work, we present an optimization of the mirror transmittances for the second phase of the project (to be implemented for the O5 observation run) using a random walk algorithm implemented with the advGWINC software. In addition to BNS range, a post merger (PM) SNR is also used as a figure of merit to identify configurations that fine-tune the sensitivity curve, as a function of arm-cavity round trip losses.

THE DOUBLE PULSAR SYSTEM J0737–3039

2005 ◽  
Vol 20 (29) ◽  
pp. 7035-7044 ◽  
Author(s):  
D. R. LORIMER
Keyword(s):  
General Relativity ◽  
Neutron Star ◽  
Gravitational Wave ◽  
Detection Rate ◽  
Order Effects ◽  
Gravitational Wave Detector ◽  
High Detection Rate ◽  
Wave Detector ◽  
High Detection ◽  
Order Of Magnitude

The double pulsar system J0737 – 3039 – a 22.7 ms pulsar in a compact 2.4 hr orbit about a 2.7 s pulsar was one of the long-awaited "holy grails" of pulsar astronomy. After only two years of timing, the system is close to surpassing the original Hulse-Taylor binary as a test of general relativity. On-going timing should soon reveal second-order effects in the post-Newtonian parameters. In addition, the observed interactions of the radio beams of the two pulsars provide a unique laboratory for probing neutron star magnetospheres and relativistic winds. Finally, a revised estimate of the cosmic rate of double neutron star mergers including J0737 – 3039 boosts previous estimates by an order of magnitude and suggests a high detection rate for the advanced LIGO gravitational wave detector.

scholarly journals Determination of the neutron star mass-radii relation using narrow-band gravitational wave detector

2009 ◽  
Vol 154 ◽  
pp. 012039 ◽  
Author(s):  
C H Lenzi ◽  
M Malheiro ◽  
R M Marinho ◽  
G F Marranghello ◽  
C Providência
Keyword(s):  
Neutron Star ◽  
Gravitational Wave ◽  
Narrow Band ◽  
Gravitational Wave Detector ◽  
Star Mass ◽  
Wave Detector ◽  
Neutron Star Mass

scholarly journals Waveform systematics in the gravitational-wave inference of tidal parameters and equation of state from binary neutron-star signals

2021 ◽  
Vol 103 (12) ◽  
Author(s):  
Rossella Gamba ◽  
Matteo Breschi ◽  
Sebastiano Bernuzzi ◽  
Michalis Agathos ◽  
Alessandro Nagar
Keyword(s):  
Neutron Star ◽  
Equation Of State ◽  
Gravitational Wave ◽  
Binary Neutron Star
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