First VIMOS Spectra of Faint Galaxies

Some of the first spectra of distant galaxies obtained with VIMOS in Multi-Object-Spectroscopy (MOS) mode. More than 220 galaxies were observed simultaneously, an unprecedented efficiency for such a "deep" exposure, reaching so far out in space.

These spectra allow to obtain the redshift, a measure of distance, as well as to assess the physical status of the gas and stars in each of these galaxies. A part of this photo is enlarged as ESO Press Photo eso0209n

MOS-spectra obtained with two quadrants totaling 221 slits + 6 reference objects (stars placed in square holes to ensure a correct alignment). Exposure time 900 seconds; LR(red) grism. This is the raw (unprocessed) image of the spectra.

Credit:

ESO

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About the Image

Id:eso0209b
Type:Observation
Release date:13 March 2002
Related releases:eso0209
Size:1022 x 658 px

About the Object

Name:VIRMOS-VLT Deep Survey Field at 1000+02
Type:• Early Universe : Galaxy : Grouping : Supercluster
• X - Cosmology
Distance:z=5.0 (redshift)

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Colours & filters

BandTelescope
Optical Very Large Telescope
VIMOS

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