Double common envelope jets supernovae (CEJSNe) by triple-star systems

I propose a new type of common envelope jets supernova (CEJSN) events where instead single neutron star (NS; or black hole; BH) tight binary system NS and main sequence enters evolution (CEE) with red supergiant. The the merge inside supergiant enter CEE their own. accretes some mass through an accretion disk launches that explodes star. estimate two at this phase carry energy ~10^{52} erg, about same order magnitude as will when its BH remnant core in later phase. For that, term entire event double CEJSN. outcome CEJSN is very long, months to years, energetic event, total - 10^{53} be observationally classified peculiar super-energetic event. crudely transient surveys should detect one from triple per year.