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About the Image

Date
2007-09-06
ID
ssc2007-15a1
Type
Observation
Credit
NASA, ESA, and N. Pirzkal (STScI/ESA)
Observers
N. Pirzkal (STSCI/ESA) S. Malhotra (Arizona State University) J. Rhoads (Arizona State University) C. Xu (Shanghai Institute of Technical Physics) S. Beckwith (STScI) S. Malhotra (STScI) M. Giavalisco (STScI) N. Panagia (STScI) J. Rhoads (STScI) M. Stiavelli (STScI) R. Somerville (STScI) S. Casertano (STScI) B. Margon (STScI) C. Blades (STScI) J. Caldwell (STScI) M. Clampin (STScI) M. Corbin (STScI/CSC) M. Dickinson (STScI) H. Ferguson (STScI) A. Fruchter (STScI) R. Hook (STScI/ECF) S. Jogee (STScI) A. Koekemoer (STScI) R. Lucas (STScI) M. Sosey (STScI) L. Bergeron (STScI) R. Thompson (University of Arizona) G. Illingworth (university of California, Santa Cruz) R. Bouwens (university of California, Santa Cruz) M. Dickinson (STScI) D. Eisenstein (University of Arizona) X. Fan (University of Arizona) M. Franx (University of Leiden) M. Rieke (University of Arizona) A. Riess (STScI) P. van Dokkum (Yale University) H. Yan (Caltech) M Dickinson (NOAO) D. Stern (Jet Propulsion Lab) P. Eisenhardt (Jet Propulsion Lab) R.-R. Chary (Caltech) M. Giavalisco (STScI) H. Ferguson (STScI) S. Casertano (STScI) C. Conselice (Caltech) C. Papovich (Steward Observatory) W. Reach (Caltech) N. Grogin (STScI) L. Moustakas (Jet Propulsion Lab) M. Ouchi (STScI)

About the Object

Name
HUDF • Hubble Ultra Deep Field
Type
Cosmology > Morphology > Deep Field

Color Mapping

Band Wavelength Telescope
Optical 435 nm Hubble ACS
Optical 606 nm Hubble ACS
Infrared 775 nm Hubble ACS
Infrared 850 nm Hubble ACS

About the Color Mapping Table

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Hubble Ultra Deep Field

In this image of the Hubble Ultra Deep Field, several objects are identified as the faintest, most compact galaxies ever observed in the distant universe. They are so far away that we see them as they looked less than one billion years after the Big Bang. Blazing with the brilliance of millions of stars, each of the newly discovered galaxies is a hundred to a thousand times smaller than our Milky Way Galaxy.

The detection required joint observations between Hubble and NASA's Spitzer Space Telescope. Blue light seen by Hubble shows the presence of young stars. The absence of infrared light from Spitzer observations conclusively shows that these are truly young galaxies without an earlier generation of stars.