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I further study the manner by which a pair of opposite jets shape the keyhole morphological structure of the core-collapse supernova (CCSN) SN 1997A, now the CCSN remnant (CCSNR) 1987A. By doing so, I strengthen the claim that the…

High Energy Astrophysical Phenomena · Physics 2024-05-21 Noam Soker

We conduct one-dimensional stellar-evolution simulations of stars with zero age main sequence masses of $M_{ZAMS} = 8.8-9.45 M_\odot$ towards core collapse by electron capture, and find that the convective zone of the pre-collapse core can…

High Energy Astrophysical Phenomena · Physics 2024-07-19 Nikki Yat Ning Wang , Dmitry Shishkin , Noam Soker

We conduct three-dimensional hydrodynamical simulations of weak jets that we launch into a core collapse supernovae (CCSNe) ejecta half an hour after the explosion and find that the interaction of the fast jets with the CCSN ejecta creates…

High Energy Astrophysical Phenomena · Physics 2022-05-18 Muhammad Akashi , Noam Soker

In the meeting SN 1987A 30 years later, I presented my minority view that the majority (or even all) of core collapse supernovae (CCSNe) are driven by jets rather than by neutrinos, and that the majority of type Ia supernovae (SN Ia) reach…

High Energy Astrophysical Phenomena · Physics 2017-10-25 Noam Soker

I point out similarities between point-symmetric X-ray morphologies in cooling flow groups and clusters of galaxies, which are observed to be shaped by jets, and point-symmetric morphologies of eight core-collapse supernova (CCSN) remnants.…

High Energy Astrophysical Phenomena · Physics 2024-06-21 Noam Soker

I find that an ingredient that was added in a recent study to facilitate the delayed neutrino explosion mechanism of core collapse supernovae, namely, large scale perturbations in the pre-collapse core, has a larger positive influence on…

High Energy Astrophysical Phenomena · Physics 2018-10-23 Noam Soker

I examine the assumption that the jets that shape the axisymmetrical morphological features of core collapse supernova (CCSN) remnants are post-kick jets, i.e., the neutron star (NS) launches these jets after the explosion and after it…

High Energy Astrophysical Phenomena · Physics 2023-02-08 Noam Soker

I estimate the energy that neutrino heating adds to the outflow that jets induce in the collapsing core material in core collapse supernovae (CCSNe), and find that this energy crudely doubles the energy that the jets deposit into the outer…

High Energy Astrophysical Phenomena · Physics 2022-08-17 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

I list eight types of astrophysical objects where jets, and more particularly the jet feedback mechanism (JFM), might operate, and discuss cases where an object evolves from one type to another while the JFM continues to operate. In four of…

Astrophysics of Galaxies · Physics 2017-08-08 Noam Soker

I identify a point-symmetric morphology in the core-collapse supernova (CCSN) remnant SNR G11.2-0.3 composed of three pairs of opposite morphological features, and attribute their shaping to three energetic pairs of jets during the…

High Energy Astrophysical Phenomena · Physics 2026-03-31 Noam Soker

We simulate the response of a main sequence star to the explosion of a stripped-envelope (type Ib or Ic) core collapse supernova (CCSN) when the main sequence star orbits the core at a distance of 10-20Ro at explosion. We use the stellar…

High Energy Astrophysical Phenomena · Physics 2022-08-31 Ofek Hober , Ealeal Bear , Noam Soker

I find that the dust morphologies in some core-collapse supernova (CCSN) remnants (CCSNRs) possess jet-shaped morphologies, and propose that the properties of the jets that explode the CCSNe and their interaction with the core and envelope…

High Energy Astrophysical Phenomena · Physics 2026-05-12 Noam Soker

I examine recent radio observations of the supernova remnant (SNR) RCW 89 and identify a point-symmetric morphology composed of two main symmetry axes. I attribute this morphology to a jet-driven explosion in the framework of the jittering…

High Energy Astrophysical Phenomena · Physics 2025-10-17 Noam Soker

We conduct one dimensional (1D) stellar evolution simulations of non-rotating stars with initial masses in the range of $11-48 M_\odot$ to the time of core collapse and, using a criterion on the specific angular momentum fluctuations in the…

High Energy Astrophysical Phenomena · Physics 2022-04-27 Dmitry Shishkin , Noam Soker

We examine the binding energies of massive stripped-envelope core collapse supernova (SECCSN) progenitors with the stellar evolution code MESA, and find that the jittering jets explosion mechanism is preferred for explosions where…

High Energy Astrophysical Phenomena · Physics 2023-03-24 Dmitry Shishkin , Noam Soker

I examine the morphology of the core-collapse supernova (CCSN) remnant (SNR) G0.9+0.1 and reveal a point-symmetrical morphology that implies shaping by three or more pairs of jets, as expected in the jittering jets explosion mechanism…

High Energy Astrophysical Phenomena · Physics 2025-08-18 Noam Soker

We find that the remnant of supernova (SN) 1987A share some morphological features with four supernova remnants (SNRs) that have signatures of shaping by jets, and from that we strengthen the claim that jets played a crucial role in the…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Ealeal Bear , 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

After several decades of extensive research the mechanism driving core-collapse supernovae (CCSNe) is still unclear. A common mechanism is a neutrino driven outflow, but others have been proposed. Among those, a long-standing idea is that…

High Energy Astrophysical Phenomena · Physics 2017-06-05 Tsvi Piran , Ehud Nakar , Paolo Mazzali , Elena Pian