Looking for Core-Collapse Supernovae with Gravitational Waves and Low-energy Neutrinos

2 Sep 2021, 17:10
Talk in parallel session Gravitational Waves Discussion Panel Gravitational Waves 3


Giulia Pagliaroli (INFN)


Core-collapse supernovae are fascinating astrophysical objects for multimessenger studies. Gravitational waves (GWs) are expected to play a role in the supernova explosion mechanism, however their complex modelling makes the detection very challenging. Low-energy neutrinos will be emitted enormously during the core-collapse explosion and can help for the gravitational wave counterpart search. In this work we develop a multi-messengers strategy to search for such astrophysical objects by exploiting a global network of both low-energy neutrino and gravitational wave detectors. We also improve the detection potential of the neutrino sub-network by exploiting the temporal behaviour of a neutrino burst from a core-collapse supernova. We show that with the proposed approach neutrino detectors can gain at least 10% of detection efficiency at the distance where their efficiency drops. Then, we combine the information provided by GW and neutrino in a multi-messenger strategy. In particular, we obtain an increase of the probability to detect the GW signal from a CCSN at 60 kpc from zero when using only GW analysis to ∼33% with our combined GW-ν approach.

Primary authors

Dr. Odysse Halim (INFN Trieste) Dr. Marco Drago (Univ of Rome La Sapienza and INFN Rome) Kate Scholberg (Duke University) Prof. Viviana Fafone Dr. Claudio Casentini Dr. Carlo Vigorito Giulia Pagliaroli (INFN)

Presentation Materials

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