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We study the similarities of jet-medium interactions in several quite different astrophysical systems using 2D and 3D hydrodynamical numerical simulations, and find many similarities. The systems include cooling flow (CF) clusters of…

太阳与恒星天体物理 · 物理学 2015-06-11 Noam Soker , Muhammad Akashi , Avishai Gilkis , Shlomi Hillel , Oded Papish , Michael Refaelovich , Danny Tsebrenko

We compare images of core-collapse supernova (CCSN) remnants (CCSNRs) and jet-shaped planetary nebulae (PNe) that have a narrow, faint zone extending from side to side, termed a pipe, with a hydrodynamical numerical simulation exploding a…

高能天体物理现象 · 物理学 2026-05-29 Jessica Braudo , Noam Soker

We conduct three-dimensional hydrodynamical simulations to explore the interaction of jets that a neutron star (NS) companion to a type Ic or type Ib core collapse supernova (CCSN) launches few hours after explosion with the ejecta of the…

高能天体物理现象 · 物理学 2020-09-30 Muhammad Akashi , Noam Soker

We analyze the morphologies of three core collapse supernova remnants (CCSNRs) and the energy of jets in other CCSNRs and in Super Luminous Supernovae (SLSNe) of type Ib/Ic/IIb, and conclude that these properties are well explained by the…

高能天体物理现象 · 物理学 2017-09-20 Ealeal Bear , Aldana Grichener , Noam Soker

We evolve stellar models to study the rotational profiles of the pre-explosion cores of single massive stars that are progenitors of core collapse supernovae (CCSNe), and find large rotational shear above the iron core that might play an…

太阳与恒星天体物理 · 物理学 2017-11-17 Noa Zilberman , Avishai Gilkis , Noam Soker

We show that the standing accretion shock instability (SASI) that has been used to ease the shock revival in core collapse supernovae (CCSNe) neutrino-driven explosion models, might play a much more decisive role in supplying the stochastic…

高能天体物理现象 · 物理学 2016-03-29 Oded Papish , Avishai Gilkis , 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.…

高能天体物理现象 · 物理学 2022-12-14 Muhammad Akashi , Amir Michaelis , 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…

高能天体物理现象 · 物理学 2021-01-06 Muhammad Akashi , 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…

高能天体物理现象 · 物理学 2015-06-10 Doron Kushnir

Examining the photospheric time evolution of the core-collapse supernova (CCSN) SN 2023ixf from the literature, we identify two (possibly three) evolutionary time periods with constant expansion velocities, which we attribute to two (or…

高能天体物理现象 · 物理学 2025-11-24 Noam Soker , Kobi Shiran

Magnetized and rotating core-collapse supernovae (CCSNe) are promising candidates for producing long gamma-ray bursts and hypernovae. In this project, we present 34 two-dimensional magnetized core-collapse supernova simulations with…

高能天体物理现象 · 物理学 2026-03-30 Kuo-Chuan Pan , Yi-Fang Li

We identify jet-shaped morphology in the core-collapse supernova remnant (SNR) CTB 1 that includes two opposite structural features. We identify these as the imprints of a pair of jets that were among the last jets to explode the massive…

高能天体物理现象 · 物理学 2023-12-12 Ealeal Bear , Noam Soker

Despite the three-dimensional nature of core-collapse supernovae (CCSNe), simulations in spherical symmetry (1D) play an important role to study large model sets for the progenitor-remnant connection, explosion properties, remnant masses,…

高能天体物理现象 · 物理学 2025-05-27 Liliya Imasheva , H. -Thomas Janka , Achim Weiss

I identify a point-symmetric morphology composed of three pairs of ears (small lobes) in the X-ray images of the core-collapse supernova remnant (CCSNR) N63A and argue that this morphology supports the jittering jets explosion mechanism…

高能天体物理现象 · 物理学 2024-02-19 Noam Soker

The joint observation of core-collapse supernovae with gamma-ray bursts shows that jets can be launched in the aftermath of stellar core collapse, likely by a newly formed black hole that accretes matter from the star. Such gamma-ray bursts…

高能天体物理现象 · 物理学 2020-01-15 Dafne Guetta , Roi Rahin , Imre Bartos , Massimo Della Valle

We conduct one-dimensional stellar evolution simulations in the mass range $13-20 M_{\odot}$ to late core collapse times and find that an inner vigorous convective zone with large specific angular momentum fluctuations appears at the edge…

高能天体物理现象 · 物理学 2021-09-14 Dmitry Shishkin , Noam Soker

I identified a point-symmetric morphology in the core-collapse supernova (CCSN) remnant (CCSNR) N132D, composed of two symmetry axes: the short symmetry axis extending from the northwest ear and through the center of the iron-rich emission…

高能天体物理现象 · 物理学 2025-11-13 Noam Soker

I review the roles of jet-inflated bubbles in determining the evolution of different astrophysical objects. I discuss astrophysical systems where jets are known to inflate bubbles (cooling flow [CF] clusters; young galaxies; intermediate…

太阳与恒星天体物理 · 物理学 2015-12-09 Noam Soker

We calculate the nucleosynthesis inside the hot bubble formed in the jittering-jets model for core collapse supernovae (CCSNe) explosions, and find the formation of several times 10^-4 M_\odot of r-process elements. In the jittering-jets…

高能天体物理现象 · 物理学 2015-05-30 Oded Papish , Noam Soker

Core-collapse supernovae (CCSNe) are catastrophic astrophysical phenomena that occur during the last evolutionary stages of massive stars having initial masses of around 8 M$_{\odot}$ or more. These calamitous events play a pivotal role in…

高能天体物理现象 · 物理学 2023-12-29 Amar Aryan