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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 a NS and a main sequence star enters a common envelope evolution (CEE) with a…

High Energy Astrophysical Phenomena · Physics 2021-05-12 Noam Soker

We propose a common-envelope jets supernova (CEJSN) scenario for the fast-rising blue optical transient AT2018cow. In a CEJSN a neutron star (NS) spirals-in inside the extended envelope of a massive giant star and enters the core. The NS…

High Energy Astrophysical Phenomena · Physics 2019-02-13 Noam Soker , Aldana Grichener , Avishai Gilkis

We propose a new type of repeating transient outburst initiated by a neutron star (NS) entering the envelope of an evolved massive star, accreting envelope material and subsequently launching jets which interact with their surroundings.…

High Energy Astrophysical Phenomena · Physics 2018-11-07 Avishai Gilkis , Noam Soker , Amit Kashi

We study high energy neutrino emission from relativistic jets launched by a black hole (BH) spiraling-in inside the envelope of a red supergiant (RSG), and find that such common envelope jets supernovae (CEJSNe) are a potential source for…

High Energy Astrophysical Phenomena · Physics 2021-08-11 Aldana Grichener , Noam Soker

We conducted one-dimensional stellar evolutionary numerical simulations to build blue supergiant stellar models with a very low-envelope mass and a super-Eddington luminosity of 10^7Lo that mimic the last phase of a common envelope…

High Energy Astrophysical Phenomena · Physics 2023-04-26 Tamar Cohen , Noam Soker

We study r-process feasibility inside jets launched by a cold neutron star (NS) spiralling-in inside the core of a giant star, and find that such common envelope jets supernova events might be a significant source of heavy r-process…

Solar and Stellar Astrophysics · Physics 2019-06-19 Aldana Grichener , Noam Soker

I explore a triple-star scenario where a tight neutron star (NS) - NS binary system enters the envelope of a red supergiant (RSG) star and spirals-in towards its core. The two NSs accrete mass through accretion disks and launch jets that…

High Energy Astrophysical Phenomena · Physics 2021-07-07 Noam Soker

We suggest that the energetic radiation from core-collapse super-energetic supernovae (SESNe) is due to a long lasting accretion process onto the newly born neutron star (NS), resulting from an inefficient operation of the jet-feedback…

High Energy Astrophysical Phenomena · Physics 2016-08-17 Avishai Gilkis , Noam Soker , Oded Papish

We use a numerical Galactic chemical evolution model and find that the common envelope jets supernova (CEJSN) r-process scenario can account for both the very early average ratio of europium to iron and its evolution at later times in the…

High Energy Astrophysical Phenomena · Physics 2022-02-23 Aldana Grichener , Chiaki Kobayashi , Noam Soker

We conduct a three-dimensional hydrodynamical simulation of a common envelope evolution (CEE) where a neutron star (NS) spirals-in inside the envelope of a red supergiant (RSG) star in a predetermined orbit. We find that the jets shed pairs…

High Energy Astrophysical Phenomena · Physics 2023-08-21 Shlomi Hillel , Ron Schreier , Noam Soker

We conduct three-dimensional hydrodynamical simulations of common envelope jets supernova (CEJSN) events where we assume that a neutron star (NS) launches jets as it orbits inside the outer zones of a red supergiant (RSG) envelope, and find…

High Energy Astrophysical Phenomena · Physics 2022-05-25 Shlomi Hillel , Ron Schreier , Noam Soker

We calculate the lightcurves of jet-driven bipolar core collapse supernova (CCSN) explosions into a bipolar circumstellar mater (CSM) and show that an equatorial observer finds the lightcurves to possess a rapid, and even an abrupt, drop.…

High Energy Astrophysical Phenomena · Physics 2022-12-14 Muhammad Akashi , Amir Michaelis , Noam Soker

I propose a new scenario, the polar common envelope jets supernova (CEJSN) impostor scenario, to account for AT2018cow-like fast blue optical transients (FBOTs). The polar CEJSN impostor scenario evolves through four main phases. (1) A red…

High Energy Astrophysical Phenomena · Physics 2022-05-04 Noam Soker

We conducted three-dimensional hydrodynamical simulations to study the interaction of two late opposite jets with the ejecta of a core collapse supernova (CCSN), and study the bipolar structure that results from this interaction as the jets…

High Energy Astrophysical Phenomena · Physics 2021-01-06 Muhammad Akashi , Noam Soker

We compare the morphology of the core collapse supernova remnant (CCSNR) W49B with the morphology of many planetary nebulae (PNe), and deduce the orientation of the jets that shaped this CCSNR and estimate their energy. We find…

Solar and Stellar Astrophysics · Physics 2017-04-12 Ealeal Bear , Noam Soker

I review studies of core collapse supernovae (CCSNe) and similar transient events that attribute major roles to jets in powering most CCSNe and in shaping their ejecta. I start with reviewing the jittering jets explosion mechanism that I…

High Energy Astrophysical Phenomena · Physics 2022-12-14 Noam Soker

It is widely thought that core-collapse supernovae (CCSNe), the explosions of massive stars following the collapse of the stars' iron cores, is obtained due to energy deposition by neutrinos. So far, this scenario was not demonstrated from…

High Energy Astrophysical Phenomena · Physics 2015-02-12 Doron Kushnir

We show that turbulence in core collapse supernovae (CCSNe) which has been shown recently to ease shock revival might also lead to the formation of intermittent thick accretion disks, or accretion belts, around the newly born neutron star…

Solar and Stellar Astrophysics · Physics 2015-06-11 Avishai Gilkis , Noam Soker

Core-collapse supernovae (CCSNe) are the explosions of massive stars following the collapse of the stars' iron cores. Poznanski (2013) has recently suggested an observational correlation between the ejecta velocities and the inferred masses…

High Energy Astrophysical Phenomena · Physics 2015-06-10 Doron Kushnir

We conduct three-dimensional hydrodynamical simulations of core-collapse supernova (CCSN) explosion driven by jets in the framework of the jittering jets explosion mechanism (JJEM), and obtain a pair of opposite circum-jet rings similar to…

High Energy Astrophysical Phenomena · Physics 2026-04-01 Muhammad Akashi , Noam Soker
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