Talk detail

Participant	Razzano, Massimiliano
Institution	Dipartimento di Fisica Università di Pisa, VAT: IT00286820501 - Largo B. Pontecorvo 3 - Pisa - - Italy

Session	HE4	Accepted	Yes	Order	1	Time	14:00	20' + 5'
Talk	Oral abstract	Title	The gamma-ray sky unveiled by the Fermi Large Area Telescope
Coauthors	on behalf of the Fermi-LAT Collaboration
Abstract	In its first seven years of operations, the Fermi Gamma-ray Space Telescope has improved our view of the gamma-ray Universe. The Large Area Telescope (LAT), the main instrument onboard Fermi, has discovered more than three thousand GeV sources and unveiled new classes of gamma-ray emitters, thus extending our view of the high-energy side of the Universe. The LAT is also a very versatile instrument, that offers the possibility not only to detect gamma rays but also charged particles (e.g. electrons and positrons), thus contributing to a better understanding of cosmic-ray physics. We will give an overview of the most recent science results obtained with the LAT, and show its potential in the context of future multimessenger observations.
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Session	GW1	Accepted	Yes	Order	99	Time
Talk	Poster abstract	Title	High-energy follow-up studies of gravitational wave transient events
Coauthors	Cella, Giancarlo; Fidecaro, Francesco; Patricelli, Barbara; Pian, Elena; Stamerra, Antonio
Abstract	Second-generation gravitational interferometers, such as Advanced LIGO and Advanced Virgo, will soon reach sensitivities sufficient to first detect gravitational waves and open a new era in the multi-messenger investigations of the cosmos. The most violent and energetic astrophysical phenomena, including the mergers of compact objects or the core collapse of massive stars, are promising sources of gravitational waves, and are thought to be connected with transient phenomena such as Gamma Ray Bursts and supernovae. Combined observations of gravitational and electromagnetic signals from these events will thus provide an unique opportunity to unveil their progenitors and study the physics of compact objects. In particular, gamma-ray ground-based and space observatories such as Fermi or the Air Cherenkov Telescopes will be crucial to observe the high-energy electromagnetic counterparts of transient gravitational wave signals and provide a robust identification based on a precise sky localization. We will report on our studies of possible joint observation strategies carried on by gravitational interferometers and gamma-ray telescopes, with particular attention on the high-energy follow-up of Gamma Ray Bursts.
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