|
|
More Images of Chandra Deep Field-North
JPEG, TIFF, PS
|
Hubble Deep Field-North with X-ray
Identifications
The yellow circles overlaid on the Hubble Deep Field
North image indicate where X-ray emission was detected
in the Chandra Deep Field-North observation.
(Credit: NASA/Penn State)
|
JPEG, TIFF, PS
|
Chandra Deep Field-North in relation
to Hubble Deep Field-North
In this image, the patch of the sky covered by the
Hubble Deep Field-North is indicated by the blue box in
the middle. This demonstrates that in addition to
analyzing the same area of sky that Hubble did, the
Chandra observations cover a much greater region.
(Credit: NASA/Penn State)
|
JPEG, TIFF, PS
|
Chandra Deep Field-North without
outlines
Shown is an extremely deep Chandra X-ray Observatory
image of the Hubble Deep Field-North (HDF-N), the most
intensively studied patch of the night sky at all
wavelengths from radio to X-ray. This image is thus the
best combination of the deepest imaging capabilities
available in both the optical and X-ray regimes.
Twelve X-ray sources are detected in the HDF-N. The
false colors represent the "X-ray color" of the
objects. Objects that appear redder are cooler in the
X-ray band, while objects which are more blue are
hotter in the X-ray band. About half of the sources
show strong evidence that the X-rays are due to
accretion onto supermassive black holes. The other
sources have much lower luminosities, and in several
cases are fairly nearby. In these galaxies, the Chandra
X-ray detection is most likely the summed emission from
a handful (or even one) bright sources within the
galaxy, such as stellar-size black holes in binary star
systems, the hot gas within the galaxy, or the remnants
of supernova explosions. Chandra is thus now peering
far enough into the universe to detect the type of
X-ray emission that one finds in "normal" galaxies such
as the Milky Way. This allows us to look back several
billion years to see what our own galaxy and
neighborhood (the Local Group) might have been like at
earlier times.
Chandra ACIS image
(Credit: NASA/PSU/G.Garmire,
N.Brandt, et al.)
|
|
Chandra X-ray Image with Scale
Bar
Scale bar = 30 arcsec
(Credit: NASA/PSU/G.Garmire,
N.Brandt, et al.)
|
Return to Cycle Chandra Deep Field
- North (13 Mar 01)
|
