Orateur
Mme
Serena Vinciguerra
(University of Birmingham)
Description
Coalescences of compact binaries play a fundamental role in astronomy.
They are not only considered the most promising sources of gravitational
waves for ground-based detectors such as LIGO and Virgo, but also the
central engine of short gamma ray bursts (SGRBs).
In the last decade, multi-wavelength observations of SGRBs and their
afterglow showed a variety of unexpected features, posing new theoretical
challenges. A growing theoretical effort is being devoted to explain these
new observations and, at the same time, to predict the possible
electromagnetic (EM) counterparts to the gravitational wave signals from
compact binary mergers. In order to validate the different theoretical
scenarios, we recently started a project aimed at constraining models by
using archived data from past and present missions. The core of the
project consists in developing two parallel codes, one dedicated to
predict the number of events present in a survey for a given event rate
and emission model, and one dedicated to analyse the actual data and then
to constrain either the event rates or the models. The talk will present
our first case study focused on the X-ray emission from long-lived binary
neutron star merger remnants, as predicted by the recent model proposed in
Siegel & Ciolfi (2016). Currently, we refer to data collected by
XMM-Newton during its several years of operations. Although the project is
at a preliminary stage, our first predictions suggest that few events
should already be present in XMM-Netwon archived data.
Auteur principal
Mme
Serena Vinciguerra
(University of Birmingham)
