1.7k citations · 1.9k across the 3 of their papers we have counts for
11 papers
Molecular gas in CLASH brightest cluster galaxies at
G. Castignani, M. Pandey-Pommier, S. L. Hamer +4
Brightest cluster galaxies (BCGs) are excellent laboratories to study galaxy evolution in dense Mpc-scale environments. We have observed in CO(1-0), CO(2-1), CO(3-2), or CO(4-3), w…
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 \!…
Molecular gas in distant brightest cluster galaxies
G. Castignani, F. Combes, P. Salomé +1
The stellar mass assembly of brightest cluster galaxies (BCGs) is still debated. We have observed in CO with the IRAM-30m two star forming BCGs belonging to SpARCS clusters, 3C 244…
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 )…
The effect of fluctuating fuzzy axion haloes on stellar dynamics: a stochastic model
Amr El-Zant, Jonathan Freundlich, Francoise Combes +1
Fuzzy dark matter of ultra-light axions has gained attention, largely in light of the galactic scale problems associated with cold dark matter. But the large de Broglie wavelength,…
A model for core formation in dark matter haloes and ultra diffuse galaxies by outflow episodes
Jonathan Freundlich, Avishai Dekel, Fangzhou Jiang +5
We present a simple model for the response of a dissipationless spherical system to an instantaneous mass change at its center, describing the formation of flat cores in dark matte…