💫Nuevo!! Universo Mágico ha creado una Sala de Chat para que puedas conversar en tiempo real. Si eres Autor prueba la opción Nueva Entrada

💫Los aficionados ya pueden escribir sobre astronomía. Date de alta como Autor en Universo Mágico Público.

💫Grupos de Astronomía en Facebook: Astronomy & Space Exploration - Universo Mágico - Big Bang - Galicia Astronómica

💫Distant galaxies in AXAF Deep Field

This image is a combination of a K-band image from ANTU/ISAAC with two images obtained in the B and R bands with the SUSI-2 optical imager at the New Technology Telescope (NTT) on La Silla. Note the relatively high density of red galaxies, visible in the upper right part of this image. The colours of most of these galaxies are consistent with those of "evolved" galaxies, already present when the Universe was only 4 billions years old.

The redshift, estimated on the basis of the measured colours of the mentioned over-density of yellow galaxies, is between 0.6 and 0.7 and that of the red galaxies is between 1 and 1.4.


Publicar un comentario