output
20152026
most citedTwo dimensional magnets: Forgotten history and recent progress towards spintronic applications

234 citations

Showing 2018Show all

22 papers · 1 filter

astro-ph.SR2018★ 8 cited

Variable jets at the termination of the common envelope evolution

Noam Soker

I propose that at the termination of the common envelope evolution (CEE) the companion to the giant star might launch jets that have variable directions and intensities, hence the…

astro-ph.HE2018★ 7 cited

Storing magnetic fields in pre-collapse cores of massive stars

Inbal Peres, Efrat Sabach, Noam Soker

We argue that the radiative zone above the iron core in pre-collapse cores of massive stars can store strong magnetic fields. To reach this conclusion we use the stellar evolutiona…

astro-ph.HE2018★ 80 cited

Diversity of common envelope jets supernovae and the fast transient AT2018cow

Noam Soker, Aldana Grichener, Avishai Gilkis

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 env…

astro-ph.HE2018★ 26 cited

Reviving the stalled shock by jittering jets in core collapse supernovae: jets from the standing accretion shock instability

Noam Soker

I present a scenario by which an accretion flow with alternating angular momentum sense on to a newly born neutron star in core collapse supernovae (CCSNe) efficiently amplifies ma…

astro-ph.SR2018★ 62 cited

The common envelope jets supernova (CEJSN) r-process scenario

Aldana Grichener, 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 eve…

astro-ph.GA2018★ 21 cited

Towards a higher mass for NGC1052-DF2: an analysis based on full distribution functions

Adi Nusser

It is demonstrated that the kinematics of the 10 star clusters in NGC2052-DF2 is compatible with a high dynamical mass close to those implied by the standard stellar-to-halo-mass r…

astro-ph.SR2018★ 18 cited

The formation of `columns crowns' by jets interacting with a circumstellar dense shell

Muhammad Akashi, Noam Soker

We conduct three-dimensional hydrodynamical simulations of two opposite jets that interact with a spherical slow wind that includes a denser shell embedded within it, and obtain a…

cs.CV2018

High frame-rate cardiac ultrasound imaging with deep learning

Ortal Senouf, Sanketh Vedula, Grigoriy Zurakhov +5

Cardiac ultrasound imaging requires a high frame rate in order to capture rapid motion. This can be achieved by multi-line acquisition (MLA), where several narrow-focused received…

astro-ph.SR2018★ 22 cited

Counteracting Tidal Circularization with the Grazing Envelope Evolution

Amit Kashi, Noam Soker

We show that substantially enhanced mass loss at periastron passages, as is expected in the grazing envelope evolution (GEE), can compensate for the circularization effect of the t…

astro-ph.SR2018★ 19 cited

Oxygen-neon rich merger during common envelope evolution

Pere Canals, Santiago Torres, Noam Soker

We conduct a population synthesis study of the common envelope evolution (CEE) of a white dwarf (WD) and an asymptotic giant branch (AGB) star and find that the potential number of…

astro-ph.GA2018★ 4 cited

On the requirement for mixing-heating to utilize bubble cosmic rays to heat the intracluster medium

Noam Soker

I conduct simple analytical estimates and conclude that mixing by vortices is a more efficient process to transfer the cosmic ray energy of jet-inflated bubbles to the intracluster…

cond-mat.mes-hall2018★ 144 cited

Circular dichroism in high-order harmonic generation: Heralding topological phases and transitions in Chern insulators

Alexis Chacón, Dasol Kim, Wei Zhu +10

Topological materials are of interest to both fundamental science and advanced technologies, because topological states are robust with respect to perturbations and dissipation. Ex…

astro-ph.SR2018★ 65 cited

The limited role of recombination energy in common envelope removal

Aldana Grichener, Efrat Sabach, Noam Soker

We calculate the outward energy transport time by convection and photon diffusion in an inflated common envelope and find this time to be shorter than the envelope expansion time.…

astro-ph.SR2018★ 42 cited

Radiating the hydrogen recombination energy during common envelope evolution

Noam Soker, Aldana Grichener, Efrat Sabach

By using the stellar evolution code MESA we show that most of the hydrogen recombination energy that is released as the envelope expands during a regular common envelope evolution…

astro-ph.HE2018★ 16 cited

Pre-supernova outbursts of massive stars in the presence of a neutron star companion

Barak Danieli, Noam Soker

We study the pre-explosion outbursts (PEOs) of massive stars that might result from a rapid expansion of the massive star in the presence of a close companion. We assume that activ…

astro-ph.SR2018★ 7 cited

Possible white dwarf progenitors of type Ia supernovae

Ealeal Bear, Noam Soker

We examine catalogs of white dwarfs (WDs) and find that there are sufficient number of massive WDs, M_WD > 1.35Mo, that might potentially explode as type Ia supernovae (SNe Ia) in…

astro-ph.HE2018★ 19 cited

Explaining the morphology of supernova remnant (SNR) 1987A with the jittering jets explosion mechanism

Ealeal Bear, 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 str…

astro-ph.HE2018★ 47 cited

Common envelope jets supernova (CEJSN) impostors resulting from a neutron star companion

Avishai Gilkis, Noam Soker, Amit Kashi

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 subsequentl…

astro-ph.SR2018★ 2 cited

The orientation of Eta Carinae and the powering mechanism of intermediate luminosity optical transients (ILOTs)

Amit Kashi, Noam Soker

Contrary to recent claims, we argue that the orientation of the massive binary system Eta Carinae is such that the secondary star is closer to us at periastron passage, and it is o…

astro-ph.SR2018★ 7 cited

Orbital radius during the grazing envelope evolution

Abedallah Abu-Backer, Avishai Gilkis, Noam Soker

We use the binary module of the MESA code to study the evolution of an evolved binary system where we assume that a main sequence companion removes the outskirts of the envelope of…

astro-ph.HE2018★ 4 cited

A mixed helium-oxygen shell in some core-collapse supernova progenitors

Roni Anna Gofman, Avishai Gilkis, Noam Soker

We evolve models of rotating massive stars up to the stage of iron core collapse using the MESA code and find a shell with a mixed composition of primarily helium and oxygen in som…

astro-ph.GA2018★ 13 cited

Uplifted cool gas and heating by mixing in cooling flows

Shlomi Hillel, Noam Soker

We analyze our earlier three-dimensional hydrodynamical numerical simulation of jet-inflated bubbles in cooling flow clusters, and find that dense gas that was not heated by the je…