HST DEEP FIELD IMAGES
Here are 4 representations of the data. The full resolution
images are large, about 2MB. Note that the time of data
acquisition to dissemination over the Internet took slightly
less than a month to happen. Not bad, eh?
For MAC or PC users it is recommended that you only get the
1/2 or 1/4 resolution images.
What's it all mean?
Well a lot more analysis has to be forthcoming on the structural
components of these galaxies but for now:
- Many of the galaxies look disturbed which probably indicates
continuing infall of baryonic lumps into a pre-existing potential.
Thus galaxies are built via acretion.
- Many galaxies are very blue indicating a shift of the Ultraviolet
continuum into the HST filter set. I strongly suspect this means
these objects have redshifts of 0.5 -- 1.5.
- Surface brightness dilution effects should be severe if a large
range of redshifts are represented in this data. Its unclear if this
is the case without a quantitative analysis of the surface brightnesses
of these newly detected galaxies.
- There do not appear to be many, red, spherical galaxies that might
be identified as distant elliptical galaxies. There are a couple but
overall its a very small percentage of the total population. This is
consistent with the notion that elliptical galaxies form as the result
of the merger of spiral galaxies.
- There are an awful lot of "edge-on" galaxies in this image.
Some of these may be lensed pieces of more distant galaxies, its
- There are plenty of normal looking spiral galaxies which probably
don't have much dust to obscure the spiral pattern. Note also the
lack of bright nuclei in most of these galaxies indicating that
star formation dominates the total flux and not an Active Galactic
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