Documentation scienceplus.abes.fr version Bêta

À propos de : The great observatories origins deep survey        

AttributsValeurs
type
Is Part Of
Subject
subtitle
  • VLT/FORS2 spectroscopy in the GOODS-South Field: Part II
Title
  • The great observatories origins deep survey
Date
has manifestation of work
related by
Author
Abstract
  • Aims.We present the second campaign of the ESO/GOODS program of spectroscopy of faint galaxies in the GOODS-South field. Methods.Objects were selected as candidates for VLT/FORS2 observations primarily based on the expectation that the detection and measurement of their spectral features would benefit from the high throughput and spectral resolution of FORS2. The reliability of the redshift estimates is assessed using the redshift-magnitude and color-redshift diagrams and comparing the results with public data. Results.807 spectra of 652 individual targets have been obtained in service mode with the FORS2 spectrograph at the ESO/VLT, providing 501 redshift determinations. The typical redshift uncertainty is estimated to be $\sigma_z \simeq 0.001$. Galaxies have been selected adopting three different color criteria and using the photometric redshifts. The resulting redshift distribution typically spans two redshift domains: from $z=0.5$ to 2 and $z=3.5$ to 6.2. In particular, 94 B435-, V606-, i775-“dropout” Lyman break galaxies have been observed, yielding redshifts for 65 objects in the interval $3.4http://www.eso.org/science/goods/. Large scale structures are clearly detected at $z \simeq 0.666, 0.734, 1.096, 1.221, 1.300$, and 1.614. A sample of 34 sources with tilted [O ii]3727 emission has been identified, 32 of them in the redshift range $0.9
article type
publisher identifier
  • aa4796-05
Date Copyrighted
Rights
  • © ESO, 2006
Rights Holder
  • ESO
is part of this journal
is primary topic of



Alternative Linked Data Documents: ODE     Content Formats:       RDF       ODATA       Microdata