Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Bear, Ealeal"'
We identify a point-symmetric morphology of three pairs of ears/clumps in the core-collapse supernova (CCSN) remnant (CCSNR) Puppis A, supporting the jittering jets explosion mechanism (JJEM). In the JJEM, the three pairs of jets that shaped the thre
Externí odkaz:
http://arxiv.org/abs/2409.11453
Autor:
Bear, Ealeal, Soker, Noam
With a one-dimensional stellar evolution model, we find that massive main-sequence stars can accrete mass at very high mass accretion rates without expanding much if they lose a significant fraction of this mass from their outer layers simultaneously
Externí odkaz:
http://arxiv.org/abs/2407.03182
Autor:
Bear, Ealeal, Soker, Noam
We identify a point-symmetric morphology of the supernova remnant (SNR) Cassiopeia A compatible with shaping by at least two, and more likely more than four, pairs of opposite jets, as expected in the jittering jets explosion mechanism (JJEM) of core
Externí odkaz:
http://arxiv.org/abs/2403.07625
Autor:
Bear, Ealeal, Soker, Noam
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 stellar prog
Externí odkaz:
http://arxiv.org/abs/2312.02026
We find that the convective motion in the envelopes of red supergiant (RSG) stars supplies a non-negligible stochastic angular momentum to the mass that a secondary star accretes in a common envelope evolution (CEE), such that jets that the secondary
Externí odkaz:
http://arxiv.org/abs/2306.03618
Autor:
Soker, Noam, Bear, Ealeal
We argue that the core degenerate (CD) scenario of type Ia supernovae (SNe Ia) can explain the compact helium-rich circumstellar material (CSM) of SN 2020eyj. In the new channel of the CD scenario that we propose there are two major common envelope e
Externí odkaz:
http://arxiv.org/abs/2211.04353
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 previous t
Externí odkaz:
http://arxiv.org/abs/2205.12056
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 evolution co
Externí odkaz:
http://arxiv.org/abs/2205.11059
We suggest that the vigorous core convection during core helium flash on the tip of the red giant branch (RGB) of low mass stars excites waves that carry energy to the envelope and inflate it for few years to increase the number of extreme horizontal
Externí odkaz:
http://arxiv.org/abs/2204.12360
We propose a triple-star scenario where the merger of two pre-main sequence low mass stars, <0.5Mo, ejects a dusty equatorial outflow that obscures and temporarily causes the disappearance of a massive star, >8Mo. The merger of the low-mass inner bin
Externí odkaz:
http://arxiv.org/abs/2202.08629