73 citations · 419 across the 12 of their papers we have counts for
12 papers
From FFB Starbursts at Cosmic Dawn to Quenching at Cosmic Morning: Hi-z Galaxy Bimodality
Avishai Dekel, Nir Mandelker, Zhaozhou Li +5
We propose a mass-dependent bimodality in the early evolution of galaxies. The massive track connects the super-bright galaxies at cosmic dawn () to the super-massive quiesc…
Radial Transport in High-Redshift Disk Galaxies Dominated by Inflowing Streams
Dhruba Dutta Chowdhury, Avishai Dekel, Nir Mandelker +2
We study the radial transport of cold gas within simulated disk galaxies at cosmic noon, aiming at distinguishing between disk instability and accretion along cold streams from the…
Mini-quenching of galaxies by bursty star formation
Tibor Dome, Sandro Tacchella, Anastasia Fialkov +5
The recent reported discovery of a low-mass and an intermediate-mass quenched galaxy with JWST/NIRSpec is the first evidence of halted star formation above $z\appro…
The interplay between feedback, accretion, transport and winds in setting gas-phase metal distribution in galaxies
Piyush Sharda, Omri Ginzburg, Mark R. Krumholz +5
The recent decade has seen an exponential growth in spatially-resolved metallicity measurements in the interstellar medium (ISM) of galaxies. To first order, these measurements are…
Wet Compaction to a Blue Nugget: a Critical Phase in Galaxy Evolution
Sharon Lapiner, Avishai Dekel, Jonathan Freundlich +6
We utilize high-resolution cosmological simulations to reveal that high-redshift galaxies tend to undergo a robust `wet compaction' event when near a `golden' stellar mass of $\sim…
Effects of feedback on galaxies in the VELA simulations: elongation, clumps and compaction
Daniel Ceverino, Nir Mandelker, Gregory F. Snyder +5
The evolution of star-forming galaxies at high redshifts is very sensitive to the strength and nature of stellar feedback. Using two sets of cosmological, zoom-in simulations from…
Conditions for Clump Survival in High-z Disc Galaxies
Avishai Dekel, Offek Tziperman, Kartick Sarkar +4
We study the survival versus disruption of the giant clumps in high-redshift disc galaxies, short-lived (S) versus long-lived (L) clumps and two L sub-types, via analytic modeling…
The evolution of turbulent galactic discs: gravitational instability, feedback and accretion
Omri Ginzburg, Avishai Dekel, Nir Mandelker +1
We study the driving of turbulence in star-froming disc galaxies of different masses at different epochs, using an analytic "bathtub" model. The disc of gas and stars is assumed to…
The nature of giant clumps in high-z discs: a deep-learning comparison of simulations and observations
Omri Ginzburg, Marc Huertas-Company, Avishai Dekel +4
We use deep learning to explore the nature of observed giant clumps in high-redshift disc galaxies, based on their identification and classification in cosmological simulations. Si…
Stellar Masses of Giant Clumps in CANDELS and Simulated Galaxies Using Machine Learning
M. Huertas-Company, Y. Guo, O. Ginzburg +12
A significant fraction of high redshift star-forming disc galaxies are known to host giant clumps, whose nature and role in galaxy evolution are yet to be understood. In this work…
Origin of Star-Forming Rings around Massive Centres in Massive Galaxies at
Avishai Dekel, Sharon Lapiner, Omri Ginzburg +9
Using analytic modeling and simulations, we address the origin of an abundance of star-forming, clumpy, extended gas rings about massive central bodies in massive galaxies at $z \!…
A mass threshold for galactic gas discs by spin flips
Avishai Dekel, Omri Ginzburg, Fangzhou Jiang +4
We predict, analytically and by simulations, that gas discs tend to survive only in haloes above a threshold mass (stellar mass )…