Gravitation

Searches for long-duration transient signals in ground-based gravitational-wave detectors

Over the past 8 years, Advanced LIGO and Advanced Virgo have detected about 90 gravitational-wave (GW) events, all of them produced by the coalescence of a compact binary system (CBC). In addition to CBCs, new types of GW signals are expected to be observed in the near future, as the sensitivity and observing time of GW detectors increase. Among them, we refer to long-duration transients as GW signals whose duration in the frequency band of the detectors ranges from few seconds to hours.

Galaxies, binaries and gravitational waves

Abstract
========
We are now routinely detecting gravitational waves (GW) emitted by
merging black holes and neutron stars. Those are the afterlives of
massive stars that formed all across the Universe - at different times
and with different metallicities.
Birth metallicity plays an important role in the evolution of massive
stars.
Consequently, the population properties of mergers are sensitive to the
metallicity dependent cosmic star formation history (fSFR(Z,z)).

Gravitation group Seminar: Rachel Gray - Cosmology with Dark Sirens and Galaxy Catalogues

Dear all,

On Monday, October 17 at 10.00 we will be welcoming Rachel Gray (Queen Mary University of London) for the gravitation group seminar. The seminar will take place online - the zoom link can be found below.

Rachel will talk about cosmological constraints from gravitational wave dark sirens and galaxy catalogs. 

Title: 
Cosmology with Dark Sirens and Galaxy Catalogues

Abstract: 

Gravitation Group Seminar: Nicola Franchini: Constraining modifications of black hole perturbation potentials near the light ring with quasinormal modes

On Monday, October 3 at 10.00 we will be welcoming Nicola Franchini (APC) for the gravitation group seminar. The seminar will take place in room 631B, (a zoom link can be found below).
Nicola will talk about the constraints from quasinormal modes on black hole perturbation potentials. 

Constraining modifications of black hole perturbation potentials near the light ring with quasinormal modes

Abstract

Gravitation Group Seminar: Jakub Klencki on: From massive stars through X-ray binaries to gravitational-wave sources

On Monday, September 19 at 14.00 we will be welcoming Jakub Klencki (ESO Garching and Max Planck Institute for Astrophysics Garching) for the gravitation group seminar. The seminar will take place online, (the zoom link can be found below). 

Title: From massive stars through X-ray binaries to gravitational-wave sources

Abstract: 

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