High Energy Astrophysics and Cosmology in the era of all-sky surveys

Session

Multi-messenger approaches in astrophysics

18 Jun 2026, 09:00

45. Multi-messenger constraints on core-collapse supernovae in the Local Universe (Part I)

maurice van putten (Sejong University)

18/06/2026, 09:00

Identifying the central engine of core-collapse supernovae (CC-SNe) is key objective in observational astronomy. This may be unveiled by gravitational wave emission, complementary to EM and neutrinos, that may break the degeneracy between neutron stars and black holes. Through illustrative case studies, we demonstrate the discovery potential of this approach with current-generation GW...

46. Multi-messenger constraints on core-collapse supernovae in the local Universe (part II)

Maryam Aghaei Abchouyeh

18/06/2026, 09:30

The progenitor mass and central engine of a core-collapse supernova (CC-SNe) continue to be a mystery despite the modern surveys of the transient universe. A multi-messenger approach including both EM and gravitational-waves, however, provides a unique window to break the degeneracy between a newly born neutron star and black hole central engines of CC-SNe. Considering the 160Mpc horizon...

37. Multi-messenger signatures of turbulent black hole coronae

Dr Martin LEMOINE (APC (CNRS - U. Paris Cite))

18/06/2026, 09:55

The annoucement by the IceCube collaboration of a 4.2σ excess of high-energy neutrinos (1–10 TeV) spatially associated with the Seyfert 2 galaxy NGC 1068 marked a breakthrough in multi-messenger astrophysics. Recent evidence also suggests correlations with other Seyfert galaxies (e.g., NGC 4151, NGC 7469), indicating non-jetted active galactic nuclei (AGN) as significant contributors to the...

63. Accretion and dynamics of compact objects in AGN disks: multi-messenger implications

SHURUI ZHANG (ICRANet)

18/06/2026, 10:25

Compact objects or stars in nuclear clusters can interact with AGN disks during their motion, exchanging energy and angular momentum, and eventually settling into disk-plane motion. Additionally, the outer regions of AGN disks may undergo gravitational collapse, forming stars that evolve into compact objects and migrate inward. By studying the accretion and dynamics of various compact objects...