Slacs Gravitational Lens Candidates

This collection of images shows 28 gravitational lens candidates. Astronomers studied these photos, which were taken by the Hubble Space Telescope's Advanced Camera for Surveys, and identified which of the candidates were gravitational lenses. These candidates were selected from the Sloan Digital Sky Survey. Gravitational lensing occurs when the gravitational field from a massive object warps space and deflects light from a distant object behind it. The reddish-white objects in the center of each image are massive galaxies. The blue arc-like patterns around many of the galaxies are the smeared light from distant galaxies that are behind the massive galaxies.

Credit:

NASA, ESA, A. Bolton (Harvard-Smithsonian CfA) and the SLACS Team

About the Image

NASA press release
NASA caption
Id:opo0532j
Type:Collage
Release date:17 November 2005, 19:00
Size:3000 x 1800 px

About the Object

Type:• Early Universe : Galaxy : Type : Gravitationally Lensed
• X - Galaxies Images/Videos
• X - Cosmology Images/Videos

Colours & filters

BandWavelengthTelescope
Optical
B
435 nm Hubble Space Telescope
ACS
Infrared
I
814 nm Hubble Space Telescope
ACS

Image Formats

Large JPEG
1.2 MB
Screensize JPEG
176.2 KB

Zoomable


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