The Laser Interferometer Space Antenna (LISA) - a gigameter scale space-based gravitational wave observatory - will explore the gravitational wave universe in the band from below 0.1 mHz to above 0.1 Hz. LISA will grant us access to a huge cosmological volume with unprecedented reach deep into space, detecting signals up to redshifts 20-30 and even beyond if sources exist. LISA will detect massive black hole coalescences to unveil the yet unknown origins of the first quasars and to shed light into the teeming population of middleweight black holes forming in galactic dark matter halos. LISA will discover the link between the most energetic phenomena in the universe - accreting and merging black holes - and the grand design of galaxy assembly. In synergy with third generation ground-based interferometers we will discover how gravitational collapse to a black hole is triggered, on all astrophysical relevant mass scales from a few tens to a few billions of solar masses. I will then address how the X-ray mission Athena joining LISA in concurrent multi-messenger observations of massive black hole coalescences will enhance greatly our knowledge on the propagation properties of gravitational waves and on the rate of expansion of our universe.
Professor Colpi’s Colloquium will be followed by a Library Talk event during which two science popularization books on the beauty of astrophysics and gravitational waves will be presented: Monica Colpi’s “Notte Siriaca” (Science Express) and Paola Catapano’s “Il Lungo Viaggio delle Onde Gravitazionali” (Textus).
The books being published in Italian, the library talks event will be in Italian only and will be moderated by Antonella Del Rosso, after a short introduction by Tullio Basaglia.
All interested attendees to the Colloquium are invited to stay for this presentation, using the same zoom link.
Partecipera` Michele Punturo. M.P. è dirigente di ricerca dell’Istituto Nazionale di Fisica Nucleare (INFN), membro della collaborazione VIRGO, membro della commissione astroparticelle (CSN2) dell’INFN. Punturo è stato l’ideatore e coordinatore scientifico del disegno concettuale dell’osservatorio di onde gravitazionali di terza generazione, Einstein Telescope (ET), e attualmente è il coordinatore internazionale della proposta di ET sottomessa all’European Strategy Forum on Research Infrastructures (ESFRI).
Wolfgang Lerche / TH-SP