Gravitational-wave astronomy and multi-messenger astrophysics


Contact : Irina Dvorkin (dvorkin at iap.fr)

Recent progress in gravitational-wave and multi-messenger astronomy poses new questions in a wide range of astrophysical topics, from the evolution of massive stars to super-massive black holes, from multi-wavelength observations of high-energy sources to cosmology and galaxy evolution. Clearly, a coordinated effort from the community is required to take full advantage of this new observational window. Indeed, gravitational- wave astronomy provides the opportunity for new collaborations across different astrophysical fields. We propose to discuss these exciting synergies in a dedicated workshop organized by the « Source populations » and « Multi-messenger Astronomy » Working Groups of the GdR « Ondes Gravitationnelles » and the national programs PNCG, PNPS and PNHE. The goal of this workshop is to present the latest results of the field to the French astrophysics community and to inspire cross-disciplinary discussions, in particular in the context of upcoming missions.

The workshop will be divided into two afternoon sessions. One session, planned in coordination with PNHE and PNPS, will be devoted to stellar-mass sources of gravitational waves, the evolution of their stellar progenitors and the properties of their host galaxies. A particular emphasis will be given to high-energy astrophysics and electromagnetic counterparts to gravitational-wave sources. We will also discuss recent discoveries from the ground-based instruments LIGO and Virgo as well as the future Einstein Telescope.

Another session, planned in coordination with PNCG will target intermediate and super- massive black holes and their role to structure matter at different scales in the Universe, applications to cosmography, such as measurements of the Hubble constant, stochastic backgrounds and cross-correlations with galaxy catalogues. We will focus on the future space mission LISA and its possible synergies with electromagnetic missions, and on the exciting recent progress of Pulsar Timing Array measurements, which open strong connections with extragalactic astrophysics and galaxy evolution.

Co-chair : Irina Dvorkin ; Francesca Calore ; Sylvain Chaty ; Olivier Godet ; Astrid Lamberts ; Gilles Theureau ; Marta Volonteri

DatePlage horaireTitreOrateur/OratriceAbstract
07/0614:00 - 14:25Implications for cosmology following gravitational waves detected from binary black hole binaries *INVITED TALK*Simone Mastrogiovanni Mastrogiovanni
07/0614:25 - 14:40What information on the gravitational-wave candidates can be expected during the next LIGO-Virgo-KAGRA observations?Dimitri Estevez Estevez
07/0614:40 - 14:55Formation channels of black hole mergers: isolated binaries or clusters?Astrid Lamberts Lamberts
07/0614:55 - 15:10Continuous mono-chromatic gravitational waves from isolated neutron starsSebastien Guillot Guillot
07/0615:10 - 15:25Understanding the stellar progenitors of binary black holesRahul Srinivasan Srinivasan
15:25 - 15:45PAUSE
07/0615:45 - 16:00Impact of magnetism on gravitational waves emitted by compact galactic binariesAdrien Bourgoin Bourgoin
07/0616:00 - 16:15Impact of Binary Stellar Evolution on the Population of Binary Neutron Stars: a Parameter StudyClément Pellouin Pellouin
07/0616:15 - 16:40GRANDMA Observations of ZTF/Fink Transients during Summer 2021 *INVITED TALK*Iara Tosta e Melo Tosta
16:40 - 16:50PAUSE
07/0616:50 - 17:05Fink: enabling multi-messenger astronomy in the Rubin era Emille Ishida Ishida
07/0617:05 - 17:30The LISA-Athena synergies: a multi-messenger view of our Universe *INVITED TALK*Delphine Porquet Porquet
07/0617:30 - 17:45Multi-messenger synergies with massive black hole binary mergers in the LISA eraAlberto Mangiagli Mangiagli
07/0617:45-18:00Impact of gravitational waves emitted by inspiralling binary black holes on their accretion structureRaphaël Mignon-Risse Mignon-Risse
08/0614:00 - 14:25Probing the central engine of core-collapse supernovae with their multi-messenger emission *INVITED TALK*Matteo Bugli
08/0614:25-14:40Inference of proto-neutron star physical parameters in core-collapse supernova from gravitational wave dataTristan Bruel Bruel
08/0614:40 - 15:05From galaxy pairs to massive black hole mergers. Prospects for gravitational waves detectionsThierry Contini Contini
08/0615:05 - 15:20Observational evidence for understanding the growth of supermassive black holesNatalie Webb Webb
08/0615:50 - 16:15Pulsar Timing Arrays *INVITED TALK*Gilles Theureau
08/0616:15 - 16:40ENGRAVE *INVITED TALK*Susanna Vergani Vergani
08/0616:40 - 16:55Fast detection and follow-up of high energy transients with COLIBRISimona Lombardo COLIBRI
08/0617:15 - 17:303U Transat: a swarm of cubesats to survey the transient skyOlivier Godet Godet
08/0617:30 - 17:45Gamma-ray pulsars in the Galactic bulge: a multiwavelength questJoanna Berteaud Berteaud
08/0617:45-18:00Understanding tidal disruption events with gravitational wavesMartina Toscani Toscani