6 citations · 8 across the 5 of their papers we have counts for
12 papers · 1 filter
Growth of Massive Black-Holes in FFB Galaxies at Cosmic Dawn
Avishai Dekel, Nicholas C. Stone, Dhruba Dutta Chowdhury +4
The scenario of feedback-free starbursts (FFB), which predicts excessively bright galaxies at cosmic dawn as observed using JWST, may provide a natural setting for black hole (BH)…
Effects of Cloud Geometry and Metallicity on Shattering and Coagulation of Cold Gas, and Implications for Cold Streams Penetrating Virial Shocks
Zhiyuan Yao, Nir Mandelker, S. Peng Oh +2
Theory and observations reveal that the circumgalactic medium (CGM) and the cosmic web at high redshifts are multiphase, with small clouds of cold gas embedded in a hot, diffuse me…
Entrainment of Hot Gas into Cold Streams: The Origin of Excessive Star-formation Rates at Cosmic Noon
Han Aung, Nir Mandelker, Avishai Dekel +3
We explore the evolution of cold streams from the cosmic web that feed galaxies through their shock-heated circumgalactic medium (CGM) at cosmic noon, . In addition to…
What drives the corpulence of galaxies? I. The formation of central compact dwarf galaxies in TNG50
Abhner P. De Almeida, Gary A. Mamon, Avishai Dekel +1
Nearby dwarf galaxies display a variety of effective radii (sizes) at a given stellar mass, suggesting different evolution scenarios according to their final "stellar" size. The TN…
Effects of feedback-free starburst galaxies on the 21-cm signal and reionization history
Sarah Libanore, Jordan Flitter, Ely D. Kovetz +2
Different star-formation models at Cosmic Dawn produce detectable signatures in the observables of upcoming 21-cm experiments. In this work, we consider the physical scenario of fe…
Formation of Giant Clumps in High- Disc Galaxies by Compressive Turbulence
Nir Mandelker, Omry Ginzburg, Avishai Dekel +4
We address the formation of giant clumps in violently unstable gas-rich disc galaxies at cosmic noon. While these are commonly thought to originate from gravitational Toomre instab…