18 citations · 75 across the 23 of their papers we have counts for
13 papers · 1 filter
The Evolution of Galaxies: an Infrared Perspective
Cristina C. Popescu, Richard J. Tuffs
Understanding the infrared emission of galaxies is critical to observational and theoretical investigations of the condensation of galaxies out of the intergalactic medium and the…
Superdense and normal early-type galaxies at 1<z<2
P. Saracco, M. Longhetti, A. Gargiulo
We combined proprietary and archival HST observations to collect a sample of 62 early-type galaxies (ETGs) at 0.9<z<2 with spectroscopic confirmation of their redshift and spectral…
Chemodynamical simulations with variable IMF
Chiaki Kobayashi
Using self-consistent chemodynamical simulations including star formation, supernova feedback, and chemical enrichment, I show the dependence of cosmic star formation and chemical…
The circum-galactic gas around cosmologically simulated disks
Stephanie Courty, Brad K. Gibson, Romain Teyssier
We analyze the physical properties and infall rates of the circum-galactic gas around disks obtained in multi-resolved, cosmological, AMR simulations. At intermediate and low redsh…
Do Nuclear Star Clusters and Supermassive Black Holes Follow the Same Host-Galaxy Correlations?
Peter Erwin, Dimitri Gadotti
Recent studies have suggested a strong correlation between the masses of nuclear star clusters and their host galaxies, an extension of the known correlations between supermassive…
Nuclear Star Clusters and Black Holes
Anil Seth, Michele Cappellari, Nadine Neumayer +8
We summarize the recent results of our survey of the nearest nuclear star clusters. The purpose of the survey is to understand nuclear star cluster formation mechanisms and constra…
New tools for probing the phase space structure of dark matter halos
Monica Valluri, Victor P. Debattista, Tom Quinn +1
We summarize recent developments in the use of spectral methods for analyzing large numbers of orbits in N-body simulations to obtain insights into the global phase space structure…
Are stellar over-densities in dwarf galaxies the "smoking gun" of triaxial dark matter haloes?
Jorge Penarrubia, Matthew G. Walker, Gerard Gilmore
We use N-body simulations to study the tidal evolution of globular clusters (GCs) in dwarf spheroidal (dSph) galaxies. Our models adopt a cosmologically motivated scenario in which…
Gas circulation and galaxy evolution
Filippo Fraternali
Galaxies must form and evolve via the acquisition of gas from the intergalactic environment, however the way this gas accretion takes place is still poorly understood. Star-forming…
Testing Mass Determinations of Supermassive Black Holes via Stellar Kinematics
Michele Cappellari, Richard M. McDermid, R. Bacon +10
We investigate the accuracy of mass determinations M_BH of supermassive black holes in galaxies using dynamical models of the stellar kinematics. We compare 10 of our M_BH measurem…
Are galactic coronae thermally unstable?
Carlo Nipoti
A substantial fraction of the baryons of disk galaxies like the Milky Way is expected to reside in coronae of gas at the virial temperature. This is the only realistic reservoir of…
Studying the Kinematics of Faint Stellar Populations with the Planetary Nebula Spectrograph
Michael R. Merrifield, the PN. S Consortium
Galaxies are faint enough when one observes just their light distributions, but in studying their full dynamical structure the stars are spread over the six dimensions of phase spa…
Measuring the local dark matter density
Silvia Garbari, George Lake, Justin I. Read
We examine systematic problems in determining the local matter density from the vertical motion of stars, i.e. the 'Oort limit'. Using collisionless simulations and a Monte Carlo M…