The Great Observatories Origins Deep Survey VLT/FORS2 Spectroscopy in the GOODS-South Field: Part II

By E. Vanzella, S. Cristiani, Mark Dickinson, H. Kuntschner, M. Nonino, A. Rettura, Piero Rosati, J. Vernet, C. Cesarsky, H. Ferguson and 9 more. 2006

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We present the second campaign of the ESO/GOODS program of spectroscopy of faint galaxies in the GOODS-South field. 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. 807 spectra of 652 individua 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 ~ 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 3.4<z<6.2. Three sources have been serendipitously discovered in the redshift interval 4.8<z<5.5. Together with the previous release, 930 sources have now been observed and 724 redshift determinations have been carried out. The reduced spectra and the derived redshifts are released to the community through the ESO web page http://www.eso.org/science/goods/. Large scale structures are clearly detected at z=0.666, 0.734, 1.096, 1.221, 1.300, and 1.614. A sample of 34 sources with tilted [OII]3727 emission has been identified, 32 of them in the redshift range 0.9<z<1.5.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/2ea548aa724c2560b52c1ecbc6ea99cf7cf0b867

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THE EVOLUTION OF THE GALAXY REST-FRAME ULTRAVIOLET LUMINOSITY FUNCTION OVER THE FIRST TWO BILLION YEARS (2014, unknown): “…Szokoly et al. (2004), Grazian et al. (2006), Barger et al. (2008), Hathi et al. (2008), Vanzella et al. (2008, 2009), Rhoads et al. (2009), Wuyts et al. (2009), Balestra et al. (2010), Ono et al. (2012), Finkelstein et al. (2013), Kurk et al. (2013), and Rhoads et al. (2013). from true galaxies.”
THE MULTIWAVELENGTH SURVEY BY YALE–CHILE (MUSYC): DEEP MEDIUM-BAND OPTICAL IMAGING AND HIGH-QUALITY 32-BAND PHOTOMETRIC REDSHIFTS IN THE ECDF-S (2010, methodology): “Each of the redshift catalogs adopted a different selection technique for the sources for which they obtained spectra: Balestra et al. (2010) selected galaxies at 1.8 < z < 3.5 for the VIMOS Low Resolution Blue grism and galaxies at z < 1 in addition to Lyman Break Galaxies at z > 3.5 in the Medium…”