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Detection of gravitational waves from astronomical sources

The search for gravitational waves has seen a fundamental change in recent years, with the start of the operational phase of the first generation interferometers, LIGO and Virgo, that having reached their nominal sensitivity, began their first scientific runs searching for high frequency gravitational waves in 2009.

From the point of view of astronomical observations, it is fundamental, once an event that may result in gravitational wave emission is detected with telescopes or astronomical satellites, that the search for an associated (if not strictly simultaneous) gravitational wave signal be initiated, possibly making use of positional information for the event. It is also necessary to accurately predict the expected gravitational wave signal. For this reason the development of a detailed theoretical model is aimed at increasing the probability of detection and also gaining a physical understanding of the sources, laying the foundations for gravitational wave astronomy.

The Italian scientific community active is this area is not especially numerous, but carries out an expert role in many areas: many of the most astrophysically significant gravitational wave studies are carried out through INAF. Of relevance to the forthcoming runs of LIGO and Virgo are the recent studies of the possible connection between high energy, paroxysmal events and gravitational waves. Theoretical activity is also very developed. Oscillations of neutron stars are the subject of advanced research. Binary systems made up of massive black holes will be of great importance to the LISA mission. LISA will be able to detect the gravitational waves from these systems to great distances (redshifts z~10-15) and may detect up to a hundred events per year. Detailed numerical simulations are being developed by some groups, to investigate both the astrophysics of binary black hole systems and the possible cosmological impact of these systems. Currently, the large facilities Virgo and LIGO are being used, and in the future, as well as advancements in these structures, the Einstein Telescope and LISA will also be important.

INAF hosts the preliminary round to set up the Cherenkov Telescope Array Observatory-ERIC

Feb 14, 2018

INAF hosts the preliminary round to set up  the Cherenkov Telescope Array Observatory-ERIC At Headquarters of the Italian National Institute for Astrophysics INAF, the kick-off round of the multilateral negotiations to establish an ERIC organization to the manage the Cherenkov Telescope Array project as part of the EU’s ESFRI infrastructure roadmap had take place

Extrasolar planets: Italy to lead the construction of the SHARK instruments on the LBT

Jan 24, 2018

Extrasolar planets: Italy to lead the construction of the SHARK instruments on the LBT The Italian institutes involved in the construction of SHARK are the INAF Observatories of Padua and Rome, responsible for the two channels, together with the Observatories of Arcetri, Milan and Trieste and the Department of Physics and Astronomy of the University of Padua

INAF researcher wins a Consolidator Grant 2017

Dec 20, 2017

INAF researcher wins a Consolidator Grant 2017 Two black hole systems are the investigational topic of DEMOBLACK: one of the projects that have been granted the European Consolidator Grant, which was submitted by Michela Mapelli, a researcher of the National Institute for Astrophysics-INAF and Professor at the University of Innsbruck in Austria