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Related papers: Double common envelope jets supernovae (CEJSNe) by…

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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 a common envelope jets supernova (CEJSN) origin to the supernova remnant (SNR) W49B where jets launched by a neutron star (NS) that collapsed to a black hole (BH) together with a thermonuclear outburst of the disrupted red super…

High Energy Astrophysical Phenomena · Physics 2023-07-05 Aldana Grichener , Noam Soker

We simulate the influence of the energy that the merger process of two neutron stars (NSs) releases inside a red supergiant (RSG) star on the RSG envelope inner to the merger location. In the triple star common envelope evolution (CEE) that…

High Energy Astrophysical Phenomena · Physics 2021-12-22 Muhammad Akashi , 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 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 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 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 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

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 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

Using a one-dimensional stellar evolution code we simulate the response of a red supergiant (RSG) star to injection of energy and to mass removal. We take the values of the energy that we inject and the mass that we remove according to our…

High Energy Astrophysical Phenomena · Physics 2022-08-17 Nitzan Ragoler , Ealeal Bear , Ron Schreier , Shlomi Hillel , 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

I study a triple star common envelope evolution (CEE) of a tight binary system that is spiraling-in inside a giant envelope and launches jets that spin-up the envelope with an angular momentum component perpendicular to the orbital angular…

High Energy Astrophysical Phenomena · Physics 2021-11-24 Noam Soker

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

The common envelop jet supernovae (CEJSN) r-process scenario has been proposed as an r-process nucleosynthesis site in the past decade. Jets launched by a neutron star that spirals-in inside the core of a red supergiant star in a common…

High Energy Astrophysical Phenomena · Physics 2023-10-16 Shilun Jin , 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 study stellar binary evolution that leads to the formation of a white dwarf (WD) that explodes in a thermonuclear supernova at the termination of a common envelope evolution (CEE) shortly before the core of its companion explodes as a…

Solar and Stellar Astrophysics · Physics 2021-07-14 Ealeal Bear , 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 conduct simulations using MESA of the reverse formation of a white dwarf (WD)-neutron star (NS) binary system in which the WD forms before the NS. We conclude that a core collapse supernova (CCSN) explosion might occur inside a planetary…

Solar and Stellar Astrophysics · Physics 2020-11-18 Ealeal Bear , Noam Soker

I find that the accretion disk around the neutron star (NS) that enters the core of a massive evolved star in the frame of the common-envelope jets supernova (CEJSN) r-process scenario can penetrate the crust of the NS, mix neutron-rich…

High Energy Astrophysical Phenomena · Physics 2025-06-02 Noam Soker
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