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J/A+A/428/1043 Redshifts from VIMOS VLT Deep Survey (Le Fevre+, 2004)
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Beginning of ReadMe :J/A+A/428/1043 Redshifts from VIMOS VLT Deep Survey (Le Fevre+, 2004)
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The VIMOS VLT Deep Survey. Public release of 1599 redshifts to
I_AB_<=24 across the Chandra Deep Field South.
Le Fevre O., Vettolani G., Paltani S., Tresse L., Zamorani G., Le Brun V.,
Moreau C., Bottini D., Maccagni D., Picat J.P., Scaramella R.,
Scodeggio M., Zanichelli A., Adami C., Arnouts S., Bardelli S.,
Bolzonella M., Cappi A., Charlot S., Contini T., Foucaud S., Franzetti P.,
Garilli B., Gavignaud I., Guzzo L., Ilbert O., Iovino A., Mccracken H.J.,
Mancini D., Marano B., Marinoni C., Mathez G., Mazure A., Meneux B.,
Merighi R., Pello R., Pollo A., Pozzetti L., Radovich M., Zucca E.,
Arnaboldi M., Bondi M., Bongiorno A., Busarello G., Ciliegi P.,
Gregorini L., Mellier Y., Merluzzi P., Ripepi V., Rizzo D.
<Astron. Astrophys., 428, 1043-1049 (2004)>
=2004A&A...428.1043L
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ADC_Keywords: Surveys ; Redshifts
Keywords: surveys - galaxies: high-redshift -
galaxies: distances and redshifts - cosmology: observations -
galaxies: evolution - cosmology: large scale structure of Universe
Abstract:
This paper presents the VIMOS VLT Deep Survey around the Chandra Deep
Field South (CDFS). We have measured 1599 new redshifts with VIMOS on
the European Observatory Very Large Telescope - UT3, in an area
21x21.6arcmin^2^, including 784 redshifts in the Hubble Space
Telescope - Advanced Camera for Surveys GOODS area. 30% of all objects
with I_AB_=24 have been observed independently of magnitude,
indicating that the sample is purely magnitude limited. We have
reached an unprecedented completeness level of 84% in terms of the
ratio of secure measurements vs. observed objects, while 95% of all
objects have a redshift measurement. A total of 1452 galaxies, 139
stars, 8 QSOs have a redshift identification, 141 of these being
unsecure measurements. The redshift distribution down to IAB=24 is
peaked at a median redshift z=0.73, with a significant high redshift
tail extending up to 4. Several high density peaks in the
distribution of galaxies are identified. In particular, the strong
peak at z=0.735 contains more than 130 galaxies in a velocity range
+/-2000km/s distributed all across the transverse 20h^-1^Mpc of the
survey. We are releasing all redshifts to the community, along with
the cross identification with HST-ACS GOODS sources on the CENCOS
database environment http://cencosw.oamp.fr .
Description:
Observations with VIMOS have been obtained between October 31 and
December 6, 2002. Observing conditions were photometric with an image
quality between 0.6 and 1.2-arcsec FWHM. We have moved the telescope,
hence the objects along the slits, in a sequence of 5 positions with
offsets -1.4, -0.7, 0, +0.7, +1.4-arcsec from the reference pointing
position. This is necessary to compute the fringing pattern produced
above 8300AA by the thinned EEV CCDs used in VIMOS, and remove it
during processing.