News Release Archive:

News Release 702 of 1051

February 16, 2000 12:00 AM (EST)

News Release Number: STScI-2000-11

Onset of Titanic Collision Lights Up Supernova Ring


Image: Supernova 1987A Ring Blazes Back to Life

Supernova 1987A Ring Blazes Back to LifeSTScI-PRC2000-11

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This NASA Hubble Space Telescope Wide Field and Planetary Camera 2 image shows the glowing gas ring around supernova 1987A, as seen on February 2, 2000. The gas, excited by light from the explosion, has been fading for a decade, but parts of it are now being heated by the collision of an invisible shockwave from the supernova explosion.

Image processing is used to emphasize four new bright knots of superheated gas discovered in the February 2 Hubble observations. The brightest knot, at the far right, was seen in 1997. Astronomers have been waiting several years to see more of the ring light-up as the supernova shockwave smashes into it. This is the first definitive sign of the full onset of a dramatic and violent collision which will continue over the next few years, rejuvenating SN1987A as a powerful source of X-ray and radio emissions.

Both images were made in visual light. Computer image processing techniques were used to enhance details in the ring.

Object Name: SN 1987A

Image Type: Astronomical/Illustration

Credit: NASA, Peter Challis and Robert Kirshner (Harvard-Smithsonian Center for Astrophysics), Peter Garnavich (University of Notre Dame), and the SINS Collaboration


The above montage includes these images:

Gas Ring Around Supernova 1987A -- Feb. 2, 2000 Image Type: Astronomical Gas Ring Around Supernova 1987A -- Feb. 2, 2000 Supernova 1987A -- 1997 Image Type: Astronomical Supernova 1987A -- 1997

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