Datei:New Hubble view of galaxy cluster Abell 1689.jpg

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English: This new Hubble image shows galaxy cluster Abell 1689. It combines both visible and infrared data from Hubble’s Advanced Camera for Surveys (ACS) with a combined exposure time of over 34 hours (image on left over 13 hours, image on right over 20 hours) to reveal this patch of sky in greater and striking detail than in previous observations.

This image is peppered with glowing golden clumps, bright stars, and distant, ethereal spiral galaxies. Material from some of these galaxies is being stripped away, giving the impression that the galaxy is dripping, or bleeding, into the surrounding space. Also visible are a number of electric blue streaks, circling and arcing around the fuzzy galaxies in the centre.

These streaks are the telltale signs of a cosmic phenomenon known as gravitational lensing. Abell 1689 is so massive that it bends and warps the space around it, affecting how light from objects behind the cluster travels through space. These streaks are the distorted forms of galaxies that lie behind the cluster.
Português: Essa imagem do telescópio espacial Hubble mostra o aglomerado Abell 1689. Ela combina dados visíveis e infravermelhos obtidos pelo instrumento Advanced Camera for Surveys (ACS) do Hubble através de 34 horas de exposição para revelar mais detalhadamente do que antes esse pedaço do universo.

Essa imagem é detalhada com aglomerados brilhantes, estrelas luminosas e distantes galáxias. Materiais de algumas galáxias estão sendo jogadas para fora, dando uma impressão como se estivessem encharcando ou sangrando no espaço em volta. Também visível são os riscos azuis circulando as galáxias no centro.

Essas riscos são causados pela distorção devido ao fenômeno cosmológico da lente gravitacional. Abell 1689 é tão massivo que deforma o espaço em volta, afetando como a luz de um objeto atravessa o espaço. Esses riscos são as formas deformadas de galáxias que estão por trás do aglomerado.
Datum
Quelle http://www.spacetelescope.org/images/heic1317a/
Urheber NASA, ESA, the Hubble Heritage Team (STScI/AURA), J. Blakeslee (NRC Herzberg Astrophysics Program, Dominion Astrophysical Observatory), and H. Ford (JHU)

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