Transcript Slide 1

Supernova Remnant Reveals Magnesium in Abundance
Credit NASA/CXC/Penn State/S.Park et al.
Scale Each panel is 3.25 arcmin per side
Category Supernovas and Supernova Remnants
Coordinates (J2000) RA 05h 25m 26.04s | Dec -65º 59' 06.90“
Constellation Dorado
Observation Date September 15, 2001
Observation Time 8.3 hoursObs. ID 1041
Color Code Energy (Left panel: Red 0.3-0.8keV, Green 0.8-1.5keV, Blue 1.5-3.0 keV; Right panel: Pink
0.3-3.0keV; Cyan/Blue = Mg)
Instrument ACIS
Reference S. Park et al, 2003 Astrophys. J. 592, L41
Distance Estimate 160,000 light years (distance to
Large Magellanic Cloud)
Also Known As SNR 0525-66.0
Release Date March 24, 2004
Chandra Inside Glowing Ring
“Oxygen and neon are the most abundant elements in the remnant, evidence
that the star that exploded was at least ten times as massive as the Sun.”
Color Code Energy
(Red 0.35-0.75 keV, Green 0.75-0.99 keV,
Blue 0.99 -3.0 keV)
What do you think the red in the image
represents?
Celestial Illumination: The X-Ray Glow From An Exploded Star
A Chandra “blue blob”
Color Code Intensity:
X-ray (blue), Optical (green), Radio (red)
“The fluffy crescent-shaped X-ray features that
appear around the edge of the remnant are
thought to be fragments of high-speed matter
shot out from the star when it exploded, like
shrapnel from a bomb. “
Inverted Chandra
Image of N63A
Color Code Energy:
Red 0.95-1.26 keV, Green 1.632.26 keV, Blue 4.1-6.1 keV
Color Code Energy:
Red 0.50 - 0.91 keV, Cyan 0.91 1.34 keV, Blue 1.34 - 3.00 keV
Load Chandra data into ds9 and use “energy cut” to show photons
within a certain energy range. Save each energy cut as a separate
.tiff file.
Load .tiff files made with ds9 showing “soft”, “medium” and
“hard” x-rays into Image J to make final 3-color composite.
ds9
http://chandra-ed.harvard.edu
Image J
http://rsbweb.nih.gov/ij/download.html