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:

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. There are an awful lot of "edge-on" galaxies in this image. Some of these may be lensed pieces of more distant galaxies, its not clear.

  6. 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 Nucleus.

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    The Electronic Universe Project
    e-mail: nuts@moo.uoregon.edu