Dynamical masses of early-type galaxies at z ∼ 2: Are they truly superdense?

Dynamical masses of early-type galaxies at z ∼ 2: Are they truly superdense?

We measured stellar velocity dispersions σ and derived dynamical masses of nine massive (M ≈ 1011 M ⊙) early-type galaxies (ETGs) from the Galaxy Mass Assembly ultra-deep Spectroscopic Survey (GMASS) sample at redshift 1.4 ≲ z ≲ 2.0. The σ are based on individual spectra for two galaxies at z ≈ 1.4...

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Hlavní autoři: Cappellari, M, Di Serego Alighieri, S, Cimatti, A, Daddi, E, Renzini, A, Kurk, J, Cassata, P, Dickinson, M, Franceschini, A, Mignoli, M, Pozzetti, L, Rodighiero, G, Rosati, P, Zamorani, G
Médium: Journal article
Jazyk:English
Vydáno: Institute of Physics Publishing 2009

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