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There are the two common candidates as the viable energy source for thecentral engine of long gamma-ray bursts (GRBs) and hypernovae (HNe), neutrinoannihilation and magnetic fields. We investigate gravitational wave (GW)emission accompanied by these two mechanisms. Especially, we focus on GWsignals produced by neutrinos from a hyper-accreting disk around a massiveblack hole. We show that neutrino-induced GWs are detectable for $\sim$1 Mpcevents by LISA and $\sim$ 100 Mpc by DECIGO/BBO, if the central engine ispowered by neutrinos. The GW signals depend on the viewing angle and they areanti-correlated with neutrino ones. But, simultaneous neutrino detections arealso expected, and helpful for diagnosing the explosion mechanism when laterelectromagnetic observations enable us to identify the source. GW and neutrinoobservations are potentially useful for probing choked jets that do not produceprompt emission, as well as successful jets. Even in non-detection cases,observations of GWs and neutrinos could lead to profitable implications for thecentral engine of GRBs and HNe.

Probing the central engine of long gamma-ray bursts and hypernovae with gravitational waves and neutrinos