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More Images of Deep Field in Canes Venatici
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Deep Field, X-ray/Optical
Now you don't see it; now you do. The invisible swath
of X-ray radiation that baths the universe arises in
large part from X-ray-bright, optically faint galaxies
at extremely far distances. Above, the "big three" --
Hubble Space Telescope, Keck Observatory and The
University of Hawaii 2.2 meter telescope -- detect no
or little evidence of any light source. The Chandra
X-ray Observatory, peering in the same deep field,
spots the culprits. The observation suggests that the
Hubble Deep Field may have missed a large population of
Active Galaxies.
(Credit: NASA/GSFC/R.Mushotzky
et al. )
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Deep Field, Optical Overlay
This is an optical image of the Chandra X-ray field.
The circles indicate regions when Chandra has detected
an X-ray source. Note that many circles (6,8,16,21) do
not show an optical source at their center.
(Credit: NASA/GSFC/R.Mushotzky
et al.)
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Deep Field, Optical/X-ray
Superimposed
This is an optical image with X-ray data
superimposed.
(Credit: NASA/GSFC/R.Mushotzky
et al.)
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Chandra X-ray Image with Scale
Bar
Scale bar = 26 arcsec
(Credit: NASA/GSFC (Mushotzky et
al.))
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Build your own comparison.
These are three optical counterparts within the X-ray
field shown above. From the above image clockwise, we
have a Hubble Space Telescope image (top right), a Keck
Observatory image (bottom right), and the University of
Hawaii 2.2 meter (left). Please note that these images
coorespond to a small region within the background, as
shown above. Draw your focus to the very center of each
optical image; the optical field is empty.
(Credit: University of Hawaii,
L. Cowie)
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Return to Deep
Field (13 Jan 00)
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