2021-01-18

Hubble helps astronomers determine the location of supernovae

By yqqlm yqqlm

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The official name of the supernova remnant is 1E 0102.2-7219, which was first discovered by NASA’s Einstein Observatory using X-rays. The researchers searched through archive images taken by Hubble and analyzed the results of visible light observations that were ten years apart. The researchers measured the velocity of 45 tadpole-like, oxygen-rich masses ejected after the supernova explosion.

Scientists say that ionized oxygen is a particularly good tracer because it emits the brightest under visible light. To calculate the age of the supernova, astronomers track the 22 fastest-moving jet clumps and clumps to determine these targets. Once the reliability of these targets is determined, they will track the movement of these agglomerations backwards until the jets converge at a point, which determines the location of the explosion. Once the location of the supernova’s explosion is known, the research team can calculate how long it takes for the node to move from the explosion center to its current location.

Additional calculations allowed them to determine that the light from the explosion reached Earth during the decline of the Roman Empire 1700 years ago. However, except for people living in the southern hemisphere of the earth, all people cannot see the light emitted by supernovae, so the possibility of being recorded in historical documents is greatly reduced. In fact, this is true. There is no known human being. Witness the record of this supernova explosion.

Hubble helps astronomers determine the location of supernovae