XXIV SIGRAV Conference on General Relativity and Gravitation

Session

Gravitational Waves

5

Sep 8, 2021, 2:30 PM

Urbino/Palazzo Battiferri

Conveners

Gravitational Waves

• Bernard Schutz
• Gianluca Guidi (FI)

30. GW networks of Advanced Detectors

Francesco Piergiovanni (Istituto Nazionale di Fisica Nucleare)

9/8/21, 2:30 PM

In 2015, the two LIGO detectors revealed for the first time a gravitational wave from the coalescence of two black holes. Two years later Virgo joined LIGO in a worldwide network of advanced gravitational wave detectors, and the detection of a gravitational wave from the coalescence of a neutron binary star in 2017 opened the era of multi-messenger astronomy. Today, the LIGO-Virgo...

31. LISA and the origins of supermassive black holes

Prof. Monica Colpi

9/8/21, 3:15 PM

Massive black holes (MBHs) inhabit galactic centres, and power luminous quasars as those observed when the Universe was less than a billion of years old.
Their origins are a mystery, and the recent detection by LIGO/Virgo of a black hole of about 150 solar masses has revitalized the questions of as to whether there is
a continuum between ‘stellar’ and ‘massive’ black holes, and what the...

59. GRMHD Simulations of Compact Object Binaries

Bruno Giacomazzo (Milano-Bicocca)

9/8/21, 3:45 PM

I will present the results of numerical relativity simulations of compact object binaries. I will focus in particular on the effects that magnetic fields can have in two different scenarios: binary neutron stars and supermassive black hole binaries. In the first one, magnetic fields can affect the post-merger evolution of the remnant and in particular its gravitational and electromagnetic...

40. Broadband quantum noise reduction in Advanced Virgo Plus

Eleonora Polini (LAPP)

9/8/21, 4:45 PM

Experimental Gravitation

Quantum noise is limiting the sensitivity of ground based gravitational wave detectors both at high and low frequency. Carlton Caves in 1980s proposed to introduce particular quantum states of lights, called vacuum squeezed states, from the output port of the detector to reduce this noise. In O3, the injection of frequency independent squeezing improved Virgo and LIGO sensitivities at high...

43. Bayesian parameter estimation of stellar-mass black-hole binaries with LISA

Dr Riccardo Buscicchio (University of Birmingham)

9/8/21, 5:15 PM

Experimental Gravitation

In this talk I will present a fully Bayesian parameter-estimation pipeline to measure the properties of inspiralling stellar-mass black hole binaries with LISA.
Our strategy (i) is based on the coherent analysis of the three noise-orthogonal LISA data streams, (ii) employs accurate and computationally efficient post-Newtonian waveforms –accounting for both spin-precession and orbital...