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
A proposito dell'immagine
Identificazione: | eso0209b |
Tipo: | Osservazione |
Data di pubblicazione: | 13 Marzo 2002 |
Notizie relative: | eso0209 |
Dimensione: | 1022 x 658 px |
A proposito delll'oggetto
Nome: | VIRMOS-VLT Deep Survey Field at 1000+02 |
Tipo: | Early Universe : Galaxy : Grouping : Supercluster |
Distanza: | z=5.0 (redshift (spostamento verso il rosso)) |
Categoria: | Cosmology |
Colori e filtri
Banda | Telescopio |
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Ottico | Very Large Telescope VIMOS |