Stellar velocity dispersion of Luminous Compact Galaxies at intermediate redshift

Abstract

We present the stellar velocity dispersion measurements for 5 Luminous Compact Galaxies (LCGs) at z=0.5-0.7. These galaxies are vigorously forming stars with average SFR $\sim$ 40 M${}_{\odot }$/yr. We find that their velocity dispersions range from $\sim 137km/s$ to $260km/s$, while their stellar masses range between $4\times 10^9$ and $10^{11}$ M${}_{\odot }$. If these LCGs evolve passively after this major burst of star formation, their masses and velocity dispersions, as well as their evolved colours and luminosities are most consistent with the values characteristic of early-type spiral galaxies today.

6 pages, 3 figures

References in corpus (4)

• An updated MILES stellar library and stellar population models
• Luminous Compact Blue Galaxies up to z~1 in the HST Ultra Deep Field: I. Small galaxies, or blue centers of massive disks?
• 3D spectroscopy with VLT/GIRAFFE - II: Are Luminous Compact Galaxies merger remnants ?
• The morphologies and masses of extremely red galaxies in the Groth Strip survey