How do galaxies grow?

Composite colour-image of the brightest galaxies in four groups located about 4 billion light-years away. The galaxies are ordered in increasing stellar mass, i.e. a rough time sequence. The brightest galaxies in group 1 and 2 both have obvious bright, gravitationally bound companions (see the crosses in this image).

Crédit:

ESO

À propos de l'image

Identification:eso0824c
Type:Collage
Date de publication:26 août 2008
Communiqués de presse en rapport:eso0824
Taille:792 x 196 px

À propos de l'objet

Nom:Galaxies
Type:Early Universe : Galaxy : Type : Interacting
Catégorie:Galaxies

Formats des images

Grand JPEG
105,6 Kio
JPEG taille écran
135,8 Kio