Gravitational Lens 0018+3845
This is a triple gravitational lens, an example of the rich diversity of the 67 strong gravitational lenses found in the COSMOS survey. The lenses were discovered in a recently completed, large set of observations as part of a project to survey a single 1.6-square-degree field of sky (nine times the area of the full Moon) with several space-based and Earth-based observatories.
Gravitational lenses occur when light travelling towards us from a distant galaxy is magnified and distorted as it encounters a massive object between the galaxy and us. These gravitational lenses often allow astronomers to peer much further back into the early Universe than they would normally be able to.
This is a greyscale image taken by Hubble ACS camera and colourised with ground-based data from the CFHT (Canada-France-Hawaii Telescope).
NASA, ESA, C. Faure (Zentrum für Astronomie, University of Heidelberg) and J.P. Kneib (Laboratoire d'Astrophysique de Marseille)
About the Image
|Release date:||19 February 2008, 15:00|
|Size:||599 x 600 px|
About the Object
|Type:||• Early Universe : Galaxy : Type : Gravitationally Lensed|
• Early Universe : Galaxy : Grouping : Cluster
• X - Cosmology Images/Videos
Colours & filters
|814 nm||Hubble Space Telescope|
Notes: Information gathered by the Subaru telescope and CFHT were used to colour this ACS image.