Measuring the mass of high-z galaxies with NGST

Abstract

We discuss dynamical mass measurements of high-z galaxies with the Next Generation Space Telescope (NGST). In particular, we review some of the observational limits with the current instrument/telescope generation, we discuss the redshift limits and caveats for absorption and emission lines studies with NGST, and the existence of suitable targets at high redshift. We also briefly summarize strengths and weaknesses of proposed NGST instruments for dynamical studies.

arXiv commentto appear in "The Mass of Galaxies at Low and High Redshift" R. Bender and A. Renzini eds