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.

Crediti:

ESO

Riguardo l'immagine

Identificazione:eso0209b
Tipo:Osservazione
Data di rilascio:13 Marzo 2002
Notizie relative:eso0209
Grandezza:1022 x 658 px

Riguardo all'oggetto

Nome:VIRMOS-VLT Deep Survey Field at 1000+02
Tipo:Early Universe : Galaxy : Grouping : Supercluster
Distanza:z=5.0 (spostamento del rosso)
Categoria:Cosmology

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Colori e filtri

BandaTelescopio
OtticoVery Large Telescope
VIMOS

 

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