Publications (17)
Implementing FFTs in Practice
Steven G. Johnson, Matteo Frigo
This review article was first published in 2008 as chapter 11 in the book "Fast Fourier Transforms," edited by C. S. Burrus, for the Connexions project at Rice University, which is…
Time Delay Lens Modeling Challenge: I. Experimental Design
Xuheng Ding, Tommaso Treu, Anowar J. Shajib +11
Strong gravitational lenses with measured time delay are a powerful tool to measure cosmological parameters, especially the Hubble constant (). Recent studies show that by com…
The impact of AGN on stellar kinematics and orbits in simulated massive galaxies
Matteo Frigo, Thorsten Naab, Michaela Hirschmann +5
We present a series of 20 cosmological zoom simulations of the formation of massive galaxies with and without a model for AGN feedback. Differences in stellar population and kinema…
The formation of extremely diffuse galaxy cores by merging supermassive black holes
Antti Rantala, Peter H. Johansson, Thorsten Naab +2
Given its velocity dispersion, the early-type galaxy NGC 1600 has an unusually massive () central supermassive black hole (SMBH), surrounded…
The two phases of core formation -- orbital evolution in the centres of ellipticals with supermassive black hole binaries
Matteo Frigo, Thorsten Naab, Antti Rantala +4
The flat stellar density cores of massive elliptical galaxies form rapidly due to sinking supermassive black holes (SMBH) in gas-poor galaxy mergers. After the SMBHs form a bound b…
Enhanced Relaxed Physical Factorization preconditioner for coupled poromechanics
Matteo Frigo, Nicola Castelletto, Massimiliano Ferronato
The relaxed physical factorization (RPF) preconditioner is a recent algorithm allowing for the efficient and robust solution to the block linear systems arising from the three-fiel…