This section of the GOYA Survey is intended to study the physical properties of galaxies at very high-z, tracing the early epoch of mass assembly. This is an exciting domain where EMIR/GTC will provide unique capabilities in the search and study of galaxies beyond z≥5, in particular in the crucial domain of z~6-12, where GOYA should have a profound impact on our knowledge of galaxy formation and cosmological reionization. The main characteristics of such extremely high-z starbursts are strong UV emission from stellar and nebular continua, and the detection of  important emission lines (Lyα, HeII 1640, CIV 1550, etc.) in the NIR. Source candidates for subsequent spectroscopic follow up with EMIR/GTC will be selected using either narrow-band techniques or ultra-deep near-IR and optical images with broad-band filters, making use of photometric redshifts or simple Lyman-break dropout technics. The photometric preselection of high-z candidates is expected to dramatically improve in the near future, before EMIR observations, with the completion of presently ongoing wide and deep near-IR surveys, both in blank and lensing fields.
galaxy origins and young assembly
last updated on March 2008 by jorG
GOALS early-type galaxies AGNs
Strategy GOODS-N primeval galaxies star-forming galaxies cosmology Other
© J. Pérez-Gallego & R. Guzmán