Hubble Ultra-Deep Field
(extremely detailed HST image of a small region of space)
The Hubble Ultra-Deep Field (HUDF) is an image
taken by the Hubble Space Telescope (HST) between September 24, 2003
and January 16, 2004.
The target field
(a 200×200 arcsecond field at
right ascension, 3h32m39.0s and
was chosen to avoid nearby bright stars
and Milky Way dust.
Four images were made with the ACS camera,
435 nm (aka, B-band), 606 nm (aka, V-band),
775 nm (aka, i-band), and 850 nm (aka, z-band).
The image has 10,000 galaxies.
A followup survey
is HUDF09, images using the later WFC3 camera:
1050 nm (aka Y-band), 1250 nm (aka J-band),
and 1600 nm (aka H-band), specifically to find
the highest redshifted galaxies possible:
a galaxy not showing in the a Y-band image suggests
a z ≥ 8 and if it also doesn't show in
the J-band, a z of 10 is suggested.
|Prefix||Example|| || |
|HUDF||HUDF-JD2|| || |
|UDF||UDF 1|| || |
|UDFj||UDFj-39546284||HUDF09 J-band dropout|| |
|UDFy||UDFy-38135539||HUDF09 Y-band dropout|| |
Referenced by pages:
Chandra Deep Field South (CDFS)
deep field (DF)
Hubble Deep Field (HDF)
Ultraviolet Hubble Ultra-deep Field (UVUDF)