Gravitationally Lensed High-Redshift Galaxy Candidates

Gravitationally Lensed High-Redshift Galaxy Candidates

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Fast Facts
News release ID: STScI-2011-04
Release Date: Jan 12, 2011
Image Use: Copyright
About this image

This is a color composite image of the Hubble Ultra Deep Field. Green circles mark the locations of candidate galaxies at a redshift of z~8, while higher-redshift candidates are circled in red. The estimated distances to these candidates have not been confirmed spectroscopically.

About 20 to 30 percent of these high-z galaxy candidates are very close to foreground galaxies, which is consistent with the prediction that a significant fraction of galaxies at very high redshifts are gravitationally lensed by individual foreground galaxies. This will help as a guide for future observations planned for the James Webb Space Telescope when it is launched.

Astronomical, Cosmology, Deep Fields, Distant Galaxies, Hubble Telescope, Hubble Ultra Deep Field, Survey


Credit: NASA, ESA, S. Wyithe (University of Melbourne), H. Yan (Ohio State University), R. Windhorst (Arizona State University), and S. Mao (Jodrell Bank Center for Astrophysics, and National Astronomical Observatories of China)

Acknowledgment: G. Illingworth and R. Bouwens (University of California, Santa Cruz), and the HUDF09 Team