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Supernova SN1999em:
The End of Days - Chandra Catches X-ray Glow From Supernova
Chandra Observation of Supernova
SN1999em. In late October of 1999, a supernova
was detected in NGC 1637, a spiral galaxy that is 25
million light
years from Earth. Chandra observed the supernova
twice soon after the explosion. X rays, shown by
contours overlaid on an optical mage, were detected
from 3 million degree gas produced by the supernova. An
X-ray source in the center of the galaxy was also
detected.
| Fast Facts for SN1999em: |
| Credit |
X-ray: NASA/CXC/SAO, Optical: Palomar Observatory Digital Sky Survey |
| Scale |
Image is 2 arcmin on a side. |
| Category |
Supernovas & Supernova Remnants |
| Coordinates (J2000) |
RA 04h 41s 28.08m | Dec -02º 51' 33.49" |
| Constellation |
Taurus |
| Observation Dates |
October 1 & 11, 1999
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| Observation Time |
18 hours |
| Obs. IDs |
763 and 764
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| Color Code |
Intensity |
| Instrument |
ACIS |
| Distance Estimate |
About 25 million light years |
| Release Date |
December 14, 1999 |
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