Prospects for multi-messenger extended emission from core-collapse supernovae in the Local Universe

Maurice H.P.M. van Putten*, Amir Levinson, Filippo Frontera, Cristiano Guidorzi, Lorenzo Amati, Massimo Della Valle

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review


Multi-messenger emissions from SN1987A and GW170817/GRB170817A suggest a Universe rife with multi-messenger transients associated with black holes and neutron stars. For LIGO-Virgo, soon to be joined by KAGRA, these observations promise unprecedented opportunities to probe the central engines of core-collapse supernovae (CC-SNe) and gamma-ray bursts. Compared to neutron stars, central engines powered by black hole-disk or torus systems may be of particular interest to multi-messenger observations by the relatively large energy reservoir EJ of angular momentum, up to 29% of the total mass in the Kerr metric. These central engines are expected from relatively massive stellar progenitors and compact binary coalescence involving a neutron star. We review prospects of multi-messenger emission by catalytic conversion of EJ by a non-axisymmetric disk or torus. Observational support for this radiation process is found in a recent identification of E≃ (3. 5 ± 1) % Mc2 in Extended Emission to GW170817 at a significance of 4. 2 σ concurrent with GRB170817A. A prospect on similar emissions from nearby CC-SNe justifies the need for all-sky blind searches of long duration bursts by heterogeneous computing.

Original languageEnglish
Article number537
JournalEuropean Physical Journal Plus
Issue number10
StatePublished - 1 Oct 2019


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