Small scatter and nearly isothermal mass profiles to four half-light radii from two-dimensional stellar dynamics of early-type galaxies

We study the total mass-density profile for a sample of 14 fast-rotator early-type galaxies (stellar masses ). We combine observations from the SLUGGS and ATLAS surveys to map out the stellar kinematics in two dimensions, out to a median radius for the sample of four half-light radii Re (or 10 kpc)...

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Bibliographic Details
Main Authors: Cappellari, M, Romanowsky, A, Brodie, J, Forbes, D, Strader, J, Foster, C, Kartha, S, Pastorello, N, Pota, V, Spitler, L, Usher, C, Arnold, J
Format: Journal article
Published: American Astronomical Society 2015