El Gordo: a massive distant merging galaxy cluster

This picture of the galaxy cluster ACT-CL J0102−4915 combines images taken with ESO’s Very Large Telescope with images from the SOAR Telescope and X-ray observations from NASA’s Chandra X-ray Observatory. The X-ray image shows the hot gas in the cluster and is shown in blue. This newly discovered galaxy cluster has been nicknamed El Gordo — the "big" or "fat one" in Spanish. It consists of two separate galaxy subclusters colliding at several million kilometres per hour, and is so far away that its light has travelled for seven billion years to reach the Earth.

Crediti:

ESO/SOAR/NASA

Riguardo l'immagine

Identificazione:eso1203a
Tipo:Osservazione
Data di rilascio:Martedì 10 Gennaio 2012 17:00
Notizie relative:eso1203
Grandezza:1530 x 1182 px

Riguardo all'oggetto

Nome:ACT-CL J0102-4915
Tipo:Early Universe : Galaxy : Grouping : Cluster
Distanza:z=0.87 (spostamento del rosso)
Constellation:Phoenix
Categoria:Galaxy Clusters

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Coordinate

Position (RA):1 2 57.07
Position (Dec):-49° 15' 20.97"
Field of view:6.43 x 4.97 arcminutes
Orientazione:Il Nord è a 0.1° a destra della verticale

Colori e filtri

BandaLunghezza d'ondaTelescopio
Ottico
R
655 nmVery Large Telescope
FORS2
Infrarosso
I
768 nmVery Large Telescope
FORS2
Infrarosso
Z
910 nmVery Large Telescope
FORS2

 

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