EWASS2019: Cosmology and multi-messenger astrophysics with Gamma-Ray Bursts

All information about the event can be found on the main EWASS website of the event.


Event introduction

Gamma-Ray Bursts (GRBs) are the most extreme and powerful emissions of electromagnetic radiation in the Universe. Since their discovery in the late '60s, they constitute one of the most fascinating and mysterious phenomena for modern science, with strong implications for several fields of astrophysics and fundamental physics. This special session will focus on the key-role of GRBs for cosmology and multi-messenger astrophysics. Indeed, the huge luminosity, the redshift distribution extending at least up to z~10 and the association with the explosive death of very massive stars make long GRBs (i.e., those lasting up to a few minutes) potentially extremely powerful cosmological probes (geometry and expansion rate of space-time, "dark energy", early Universe). At the same time, short GRBs (lasting no more than ~1-2s) are the most prominent electromagnetic signature of gravitational-wave sources like NS-NS and NS-BH merging events, and both long/short GRBs are expected to be associated with neutrino emission.

Part of the session will also be dedicated to the exploration of the THESEUS (Transient High-Energy Sky and Early Universe SUrveyor) space mission capabilities in the field of Cosmology and multi-messenger astrophysics with GRBs. THESEUS (https://www.isdc.unige.ch/theseus/) is one of the three Cosmic Vision M5 mission candidates recently selected by ESA to undergo an assessment phase study in view of a launch opportunity in 2032. The broad scientific context of the EWASS will provide us a uniquely well-timed opportunity to: (i) strengthen the involvement of the community in the project, and (ii) boost the synergies being planned between THESEUS and other large facilities that will be operating around 2030 and play a crucial role in the context of GRBs and Cosmology in different energy domains (e.g. LSST, ELT, TMT, Athena, Einstein Telescope, LISA, Km3NET).

Invited speakers

L. Amati, C. Bleve, M. Branchesi, M. D. Caballero-Garcia, L. Christensen, R. Ciolfi, B. Cordier, P. D'avanzo, M. Della Valle, T. Di Girolamo, F. Fiore; F. Frontera, F. Fuschino, G. Ghirlanda, D. Goetz, G. Greco, M. Guainazzi, D. Guetta, A. Levan, S. Mereghetti, R. Mochkovitch, P. O'Brien, M. Punturo, J. Selsing, G. Stratta, N. Tanvir, S. Vergani

Scientific organisers

Lorenzo Amati (INAF - OAS Bologna, Italy) Enrico Bozzo (University of Geneva, Switzerland) Andreja Gomboc (University of Nova Gorica,Slovenia) Diego Gotz (CEA-IRFU, France) Mimoza Hafizi (University of Tirana, Albania) Paul O'Brien (University of Leicester, UK) Giulia Stratta (INAF - OAS Bologna, INFN Firenze, Italy


Preliminary program

Monday 24th June

Cosmology with GRBs I: early Universe
09:00 - 09:20 Shedding light on the early Universe with GRBs (N. Tanvir; I)
09:20 - 09:35 Gamma Ray Burst population and jet properties (G. Ghirlanda; I)
09:35 - 09:50 GRBs as tracers of SFR and metallicity evolution (S. Vergani; I)
09:50 - 10:05 Afterglows of future LIGO/Virgo NS+NS merging events: a population study (R. Mochkovitch; I)
10:05 - 10:20 Life and death of metal-poor massive stars – a new vision for THESEUS' science (D. Szécsi; C)
10:20 - 10:35 Understanding Lyman-alpha escape through GRB host galaxy studies (J.-B. Vielfaure; C)

Cosmology with GRBs II: cosmological parameters and dark energy
14:30 - 14:50 The impact of THESEUS on cosmology and multi-messenger astrophysics (L. Christensen; I)
14:50 - 15:05 Measuring cosmological parameters with GRBs (M. Della Valle; I)
15:05 - 15:20 Recent progresses in the prompt emission spectral modelling (G. Oganesyan; C)
15:20 - 15:35 Modelling of gamma ray bursts and predictions for high-energy observations (Z. Bosnjak; C)
15:35 - 15:50 Simulation and Optimisation of the space gamma-ray telescope SVOM/ECLAIRs (S. Mate; C)
15:50 - 16:05 An unusual transient following GRB 071227 (R. Eyles; C)

GRBs and multi-messenger astrophysics I: short GRBs and GW
16:30 - 16:50 The key-role of short GRBs in multi-messenger astrophysics (R. Ciolfi; I)
16:50 - 17:05 Searching for optical counterparts of GW emitters (G. Greco; I)
17:05 - 17:20 The shortGRB-Kilonova-Gravitational Waves connection (J. Selsing; I)
17:20 - 17:35 GW170817/GRB170817A: multi-wavelength afterglow emission (P. D'avanzo; I)
17:35 - 17:50 INTEGRAL results and perspectives for multi-messenger astronomy (S. Mereghetti; I)
17:50 - 18:05 Pierre Auger Observatory: recent results and plans for the future (C. Bleve; I)

Tuesday 25th June

GRBs and multi-messenger astrophysics II: neutrinos, cosmic rays and VHE emission from short/long GRBs
09:00 - 09:15 GRBs and multi-messenger astrophysics II: an overview (G. Stratta; I)
09:15 - 09:30 Multi-messenger astronomy with GRB (T. Di Girolamo; I)
09:30 - 09:45 Activities, results, and future plans of the ENGRAVE collaboration (A. Levan; I)
09:45 - 10:00 Most recent results from the LIGO-Virgo collaboration (M. Branchesi; I)
10:00 - 10:15 Testing high density matter during mergers: a multimessenger approach (A. Drago; C)
10:15 - 10:30 Discussion

The THESEUS mission
14:30 - 15:00 THESEUS mission overview and science goals (L. Amati; I)
15:00 - 15:15 THESEUS in the Cosmic Vision / M5 context (M. Guainazzi; I)
15:15 - 15:30 Science with THESEUS/SXI (P. O'Brien; I)
15:30 - 15:45 THESEUS/XGIS: concept design, development and expected performances (F. Fuschino; I)
15:45 - 16:00 Science with THESEUS/IRT (D. Goetz; I)

Present and next generation ground and space facilities for GRBs and multi-messenger astrophysics
16:30 - 16:45 The SVOM mission (B. Cordier; I)
16:45 - 17:00 The CTA capabilities for the detection of short/long GRBs (Z. Bosnjak; I)
17:00 - 17:15 THESEUS: synergies with next generation large observatories (M. D. Caballero-Garcia; I)
17:15 - 17:30 The ASTENA mission concept (F. Frontera; I)
17:30 - 17:45 The Einstein Telescope (M. Punturo; I)
17:45 - 18:00 HERMES (F. Fiore; I)



Location Lyon, France
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