65 citations · 320 across the 14 of their papers we have counts for
10 papers · 1 filter
Jsolated Stars of Low Metallicity
Efrat Sabach
We study the effects of a reduced mass-loss rate on the evolution of low metallicity Jsolated stars, following our earlier classification for angular momentum (J) isolated stars. B…
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.…
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…
Accounting for planet-shaped planetary nebulae
Efrat Sabach, Noam Soker
By following the evolution of several observed exoplanetary systems we show that by lowering the mass loss rate of single solar-like stars during their two giant branches, these st…
Energy transport by convection in the common envelope evolution
Efrat Sabach, Shlomi Hillel, Ron Schreier +1
We argue that outward transport of energy by convection and photon diffusion in a common envelope evolution (CEE) of giant stars substantially reduces the fraction of the recombina…
The Class of Jsolated Stars and Luminous Planetary Nebulae in old stellar populations
Efrat Sabach, Noam Soker
We suggest that stars whose angular momentum (J) does not increase by a companion, star or planet, along their post-main sequence evolution have much lower mass loss rates along th…