110 citations · 1.1k across the 38 of their papers we have counts for
14 papers · 1 filter
Hubble as a Unique Discovery Engine of the Fate of Massive Stars and Black Hole Formation
Avishai Gilkis, Eva Laplace, Charles D. Kilpatrick +3
How stellar-mass black holes are formed is an open question in astrophysics, with very limited observational constraints. It is not known which types of stars are more likely to pr…
Finding the Fuse: Prospects for the Detection and Characterization of Hydrogen-Rich Core-Collapse Supernova Precursor Emission with the LSST
A. Gagliano, E. Berger, V. A. Villar +5
Enhanced emission in the months to years preceding explosion has been detected for several core-collapse supernovae (SNe). Though the physical mechanisms driving the emission remai…
An optimal envelope ejection efficiency for merging neutron stars
Alexander M. Tanaka, Avishai Gilkis, Robert G. Izzard +1
We use the rapid binary stellar evolution code BINARY_C to estimate the rate of merging neutron stars with numerous combinations of envelope ejection efficiency and natal kick disp…
The Diverse Properties of Type Icn Supernovae Point to Multiple Progenitor Channels
C. Pellegrino, D. A. Howell, G. Terreran +16
We present a sample of Type Icn supernovae (SNe Icn), a newly-discovered class of transients characterized by their interaction with H- and He-poor circumstellar material (CSM). Th…
Type IIb supernovae by the grazing envelope evolution
Binyamin Naiman, Efrat Sabach, Avishai Gilkis +1
We simulate the evolution of binary systems with a massive primary star of 15Mo where we introduce an enhanced mass loss due to jets that the secondary star might launch, and find…
Type IIb supernova progenitors by fatal common envelope evolution
Noam Lohev, Efrat Sabach, Avishai Gilkis +1
From stellar evolution simulations (using MESA) we conclude that the fatal common envelope evolution (CEE) channel for the formation of Type IIb core collapse supernova (SN IIb) pr…
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…
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…
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…
Explaining iPTF14hls as a common envelope jets supernova
Noam Soker, Avishai Gilkis
We propose a common envelope jets supernova scenario for the enigmatic supernova iPTF14hls where a neutron star that spirals-in inside the envelope of a massive giant star accretes…
Magnetar-powered superluminous supernovae must first be exploded by jets
Noam Soker, Avishai Gilkis
We analyze recent magnetar light-curve modeling of 38 hydrogen-poor superluminous supernovae (SLSNe), and find that the energies of the explosions themselves, that take place befor…
Asymmetric core collapse of rapidly rotating massive star
Avishai Gilkis
Non-axisymmetric features are found in the core collapse of a rapidly rotating massive star, which might have important implications for magnetic field amplification and production…
Explaining the most energetic supernovae with an inefficient jet-feedback mechanism
Avishai Gilkis, Noam Soker, Oded Papish
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), resu…
Jittering-jets explosion triggered by the standing accretion shock instability
Oded Papish, 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, migh…