More Images of SN 2007on in NGC 1404
Chandra X-ray Image of SN2007on in NGC 1404
This Chandra X-ray Observatory image shows the elliptical galaxy NGC 1404
in the Fornax galaxy cluster. The middle of the galaxy is near the bottom
of the image and the X-ray source at the center of the image is the
possible progenitor of the Type Ia supernova, SN 2007on. This image was
obtained 4 years before 2007on was seen to explode. The labeled version of
the image shows a white circle centered on the optical position of SN
2007on. The slight difference between the positions of the supernova and
the X-ray source suggest that the source is unrelated to the supernova, but
further observations are needed to test this possibility.
(Credit: NASA/CXC/MPE/R. Voss et al.)
Chandra X-ray Image of the Fornax Cluster
The center of the Fornax galaxy cluster
is shown in this Chandra image.
The galaxy NGC 1404 is shown below and to the left of the center, with the
optical position of the supernova shown in the labeled version with a white
square. Hot gas is clearly visible in the center of the cluster and around
(Credit: NASA/CXC/Columbia U./C.Scharf et al. )
SWIFT Optical Image of SN2007on in NGC 1404
The supernova SN 2007on is shown here at the center of a SWIFT image
obtained with the optical/UV monitor. This image was obtained on November
11, 2007, only 6 days after the supernova was discovered using the 0.25-m
robotic telescope TAROT at La Silla.
Return to SN 2007on in NGC 1404 (February 13, 2008)
Hubble Optical Image of NGC 1404
This optical image obtained with the Hubble Space Telescope shows the
galaxy NGC 1404 before SN 2007on was seen to explode. The green square
shows the position where SN 2007on was later seen. This image is rotated so
that the orientation is different from that shown for the Chandra image.