The ATLAS3D Project – XXX. Star formation histories and stellar population scaling relations of early-type galaxies
Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 448:4 (2015) 3484-3513
The benchmark black hole in NGC 4258: dynamical models from high-resolution two-dimensional stellar kinematics
Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 450:1 (2015) 128-144
Dynamical mass determinations and scaling relations of early-type galaxies
Proceedings of the International Astronomical Union Cambridge University Press 10:S311 (2015) 20-30
Abstract:
I review our understanding of classic dynamical scaling relations, relating luminosity, size and kinematics of early-type galaxies. Using unbiased determinations of galaxy mass profiles from stellar dynamical models, a simple picture has emerged in which scaling relations are driven by virial equilibrium, accompanied by a trend in the stellar mass-to-light ratio (M/L). This picture confirms the earliest insights. The trend is mainly due to the combined variation of age, metallicity and the stellar initial mass function (IMF). The systematic variations best correlate with the galaxy velocity dispersion, which traces the bulge mass fraction. This indicates a link between bulge growth and quenching of star formation. Dark matter is unimportant within the half-light radius, where the total mass profile is close to isothermal ($\rho\propto r^{-2}$).GIANT MOLECULAR CLOUDS IN THE EARLY-TYPE GALAXY NGC 4526
The Astrophysical Journal American Astronomical Society 803:1 (2015) 16
Passive galaxies as tracers of cluster environments at z ~ 2
Astronomy & Astrophysics EDP Sciences 576 (2015) l6