76 citations · 344 across the 14 of their papers we have counts for
14 papers
Unexpected fault activation due to underground gas storage in produced reservoirs. Part II: Definition of safe operational bandwidths
Selena Baldan, Massimiliano Ferronato, Andrea Franceschini +9
Underground gas storage is a versatile tool for managing energy resources and addressing pressing environmental concerns. While natural gas is stored in geological formations since…
Unexpected fault activation due to underground gas storage in produced reservoirs. Part I: Mathematical model and mechanisms
Andrea Franceschini, Claudia Zoccarato, Selena Baldan +5
Underground gas storage (UGS) is a critical technology for managing seasonal gas consumption peaks, increasingly important in the face of market uncertainties. However, safety conc…
A Reverse Augmented Constraint preconditioner for Lagrange multiplier methods in contact mechanics
Andrea Franceschini, Matteo Frigo, Carlo Janna +1
Frictional contact is one of the most challenging problems in computational mechanics. Typically, it is a tough nonlinear problem often requiring several Newton iterations to conve…
SMART: A new implementation of Schwarzschild's Orbit Superposition technique for triaxial galaxies and its application to an N-body merger simulation
Bianca Neureiter, Jens Thomas, Roberto Saglia +6
We present SMART, a new 3D implementation of the Schwarzschild Method and its application to a triaxial N-body merger simulation. SMART fits full line-of-sight velocity distributio…
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…
Time Delay Lens Modelling Challenge
X. Ding, T. Treu, S. Birrer +26
In recent years, breakthroughs in methods and data have enabled gravitational time delays to emerge as a very powerful tool to measure the Hubble constant . However, published…
Efficient solvers for hybridized three-field mixed finite element coupled poromechanics
Matteo Frigo, Nicola Castelletto, Massimiliano Ferronato +1
We consider a mixed hybrid finite element formulation for coupled poromechanics. A stabilization strategy based on a macro-element approach is advanced to eliminate the spurious pr…
Ionized gas kinematics of massive elliptical galaxies in CALIFA and in cosmological zoom-in simulations
Jan Florian, Bodo Ziegler, Michaela Hirschmann +5
(Abridged) We present an investigation of kinematical imprints of AGN feedback on the Warm Ionized gas Medium (WIM) of massive early-type galaxies (ETGs). To this end, we take a tw…
The simultaneous formation of cored, tangentially biased, and kinematically decoupled centers in massive early-type galaxies
Antti Rantala, Peter H. Johansson, Thorsten Naab +2
We study the impact of merging supermassive black holes (SMBHs) on the central regions of massive early-type galaxies (ETGs) using a series of merger simulations with varying mass…
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…
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 fate of the Antennae galaxies
Natalia Lahén, Peter H. Johansson, Antti Rantala +2
We present a high-resolution smoothed particle hydrodynamics simulation of the Antennae galaxies (NGC 4038/4039) and follow the evolution Gyrs beyond the final coalescence. The…
Dynamical masses and non-homology of massive elliptical galaxies grown by dry mergers
Matteo Frigo, Marc Balcells
We study whether dry merger-driven size growth of massive elliptical galaxies depends on their initial structural concentration, and analyse the validity of the homology hypothesis…