They also studied the explosion mechanism. They were able to obtain information about the nature of the original blast, and determine its origin and exact type, and relate that information to what we see from its remnant today. On September 24, 2008, using the Faint Object Camera and Spectrograph (FOCAS) instrument at Subaru, astronomers looked at the signatures of the light echoes to see the spectra that were present when Supernova 1572 exploded. More importantly, we get to see how a supernova in our own galaxy behaves from its origin.” The view of the light echoes from Tycho’s supernova.
We got to relive a significant historical moment and see it as famed astronomer Tycho Brahe did hundreds of years ago. Tomonori Usuda, said “using light echoes in supernova remnants is time-traveling in a way, in that it allows us to go back hundreds of years to observe the first light from a supernova event.
This same team used similar methods to uncover the origin of supernova remnant Cassiopeia A in 2007. They looked at ‘light echoes’ from the event in an effort to learn more about the ancient supernova.Ī ‘light echo’ is light from the original supernova event that bounces off dust particles in surrounding interstellar clouds and reaches Earth many years after the direct light passes by in this case, 436 years ago. Recently, a group of astronomers used the Subaru Telescope to attempt a type of time travel by observing the same light that Brahe saw back in the 16th century. The remains of this event can still be seen today as Tycho’s supernova remnant. What Brahe actually saw was a supernova, a rare event where the violent death of a star sends out an extremely bright outburst of light and energy. A bright object appeared in the constellation Cassiopeia, outshining even Venus, and it stayed there for several months until it faded from view. On NovemDanish astronomer Tycho Brahe and other skywatchers observed what they thought was a new star.
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