Kinematics of zCOSMOS field galaxies up to z~1

TL;DR

This study examines the evolution of galaxy kinematics and the stellar-to-halo-mass ratio up to redshift 1, providing insights into galaxy formation and dark matter halo properties using spectroscopic data.

Contribution

It introduces a new method to derive the stellar-to-halo-mass ratio that aligns with abundance matching models, offering a complementary approach to understanding galaxy dark matter content.

Findings

SHMR agrees with abundance matching models

Method provides new insights into stellar content of dark matter halos

Evolution of Tully-Fisher relation studied up to z~1

Abstract

(abridged) The evolution of the B-band Tully Fisher relation (TFR) and of the stellar mass TFR up to z~1 is investigated using VIMOS tilted-slit spectra of 160 zCOSMOS galaxies. Furthermore, the stellar-to-halo-mass ratio (SHMR) as a function of mass is studied and compared to predictions from simulations. Interestingly, the derived SHMR is in agreement with abundance matching models, although using simple derivations of vcircular from vmax and of rvirial from r1/2. This shows that this new approach can be used complementary to abundance matching techniques to get new insights in the stellar content of dark matter halos for individual galaxies.