GRAvitational-waves Science&technology Symposium

Session

Impact of Gravitational-Wave Surveys and Multi-messenger Observations on Astrophysics, Cosmology and Other Branches of Fundamental Physics

1 Mar 2018, 16:40

31. Electromagnetic facilities and observing strategies for multimessenger science: situation and future perspectives.

Enrico Cappellaro

01/03/2018, 16:40

Invited

In the advanced LIGO/Virgo era, a huge, world-wide effort have been put into the search of electromagnetic counteparts of gravitational wave (GW) events. Such effort has been carried out optimizing the use of the different observing facilities operating at all electromagnetic wavelengths and improving the data reduction and analysis procedures. This ultimately led to the hystorical detection...

34. LISA data challenge

Dr Antoine PETITEAU (APC - Université Paris-Diderot)

01/03/2018, 17:10

Invited

The LISA is an approved L3 ESA-NASA mission which aims at detecting gravitational wave signal in the milli-Hertz band. We are organizing set of LISA data challenges. The objectives of these challenges are 3-fold: (i) to release the data set which respects the latest changes in the LISA design and follows certain standards, this data will be open to anyone who wants to try their own data...

11. INTEGRAL observation of GW gamma ray counterparts and future perspectives: searching for Fermi/GBM un-triggered SGRB Candidates with INTEGRAL/PICsIT

James Rodi (INAF-IAPS)

01/03/2018, 17:30

The first detection of the prompt electromagnetic counterpart coincident with a GW170817 has been a forward step in our knowledge of NS-NS merging. An unexpected result was the extremely low isotropic luminosity of the event relative to other short gamma-ray bursts (SGRBs) with known redshifts, revealing a population of low luminosity SGRBs. The most popular interpretation has been that...

19. THESEUS: a future key mission for multi-messenger astrophysics

Dr Lorenzo Amati (INAF - IASF Bologna)

01/03/2018, 17:50

The Transient High-Energy Sky and Early Universe Surveyor (THESEUS) is a space mission concept aimed at exploiting Gamma-Ray Bursts for investigating the early Universe and at providing a substantial advancement of multi-messenger and time-domain astrophysics. These goals will be achieved through a unique combination of instruments allowing GRBs and X-ray transients detection over a broad FOV...

4. GW optical counterpart search in the Multi-Messenger Astronomy Era

Dr Aniello Grado (INAF-Osservatorio Astronomico di Capodimonte)

01/03/2018, 18:10

The discovery of the GW170817's optical counterpart has shown the wealth of information and science that can be gathered from such findings. As foreseen from theories and verified with the last GW event on the O2 run, the merging of two binary neutron stars produce a bright optical counterpart. The same is expected in the BH-NS coalescence while more controversial is the case of merging of...

25. Formation and evolution of merging black-hole binaries

Dr Mario Spera (University of Innsbruck)

02/03/2018, 16:40

Invited

The first confirmation of the existence of merging stellar-mass black holes (BHs) came on September 14 2015, when the LIGO interferometers observed the gravitational-wave signal from the merger of two BHs with mass larger than 25 Msun (GW150914). Since then, four additional BH mergers were observed, and two of them have BHs with mass larger than 30 Msun. From the theoretical point of view,...

17. Massive stars as progenitors of merging black hole binaries

Nicola Giacobbo (University of Padova)

02/03/2018, 17:10

The recent detection of gravitational waves has proven the existence of massive stellar black hole binaries (BHBs), but the formation channels of BHBs are still an open question. Population-synthesis codes are one of the most powerful tools to investigate the origin of BHBs. In this talk, I describe my new code MOBSE, which is an updated version of the widely used binary population synthesis...

21. Un-modeled search for stellar mass binary black hole mergers in LIGO-VIRGO interferometers

Marco Drago (TN)

02/03/2018, 17:30

Detections of stellar mass binary black holes (BBHs) system in the observing run of LIGO and VIRGO interferometers has started an exciting new era of black hole astrophysics. For understanding the formation channels of BBH a detected population of BBH will be required, with various parameters like masses, spins and orbital properties like eccentricity and precession. Hence, there is a strong...

10. Star Cluster Disruption by a Super-massive Black Hole Binary

Ms Elisa Bortolas (INAF-OAPd / University of Padova)

02/03/2018, 17:50

Super-massive black hole binaries (BHBs) are expected to be one of the most powerful sources of low-frequency gravitational waves (GWs) accessible to the forthcoming LISA mission. BHBs are believed to form in the late stages of galaxy mergers, then harden by close encounters with interacting stars, until GWs lead the BHBs to coalescence. In this talk, I will discuss how the encounter between a...