The Kinematics of Massive Quiescent Galaxies at 1.4 <z <2.1: Dark Matter Fractions, IMF Variation, and the Relation to Local Early-type Galaxies*
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We study the dynamical properties of massive quiescent galaxies at 1.4 z K-band Multi Object Spectrograph (KMOS) on the ESO Very Large Telescope. We use these data to show that the typical dynamical-to-stellar mass ratio has increased by similar to 0.2 dex fromz = 2 to the present day, and we investigate this evolution in the context of possible changes in the stellar initial mass function (IMF) and/or fraction of dark matter contained within the galaxy effective radius,f(DM)[
Original language | English |
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Article number | 87 |
Journal | Astrophysical Journal |
Volume | 899 |
Issue number | 1 |
Number of pages | 29 |
ISSN | 0004-637X |
DOIs | |
Publication status | Published - 14 Aug 2020 |
- Galaxy kinematics, Galaxy evolution, High-redshift galaxies, TO-LIGHT RATIO, VELOCITY-DISPERSION EVOLUTION, MULTI-GAUSSIAN EXPANSION, STELLAR ANGULAR-MOMENTUM, STAR-FORMATION HISTORIES, HIGH-REDSHIFT GALAXIES, INSIDE-OUT GROWTH, ELLIPTIC GALAXIES, FUNDAMENTAL PLANE, ATLAS(3D) PROJECT
Research areas
ID: 248185957