Double common envelope jets supernovae (CEJSNe) by triple-star systems. Issue 4 (7th May 2021)

• Record Type: Journal Article
• Authors: Soker, Noam
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 504:Issue 4(2021)
• Page Start: 5967
• Page End: 5974
• Publication Date: 2021-05-07
• Subjects: binaries: close -- stars: jets -- supernovae: general -- transients: supernovae; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/stab1275
• Languages: English
• ISSNs: 0035-8711

Abstract

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