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.

Herkunftsnachweis:

ESO

Über das Bild

ID:eso0209b
Typ:Beobachtung
Veröffentlichungsdatum:13. März 2002
Dazugehörige Veröffentlichungen:eso0209
Größe:1022 x 658 px

Über das Objekt

Name:VIRMOS-VLT Deep Survey Field at 1000+02
Typ:Early Universe : Galaxy : Grouping : Supercluster
Entfernung:z=5.0 (Rotverschiebung)
Kategorie:Cosmology

Bildformate

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Farben & Filter

SpektralbereichTeleskop
OptischVery Large Telescope
VIMOS

 

Siehe auch