The Space telescope & # 39; of & # 39 Kepler; NASA has been withdrawn recently was famous for his ability to display thousands of & # 39; exoplanets. But this year, it presented a mysterious observation & # 39; supernova.
Kepler offered to the scientists another chance to look at the light coming from before, during and after the supernova. This data "exquisite", according to the scientists words written on it, deepened the mystery of why these types & # 39; type 1a supernovae shine so few strong after hit, and x & # 39; cause their final explosion.
Scientists have warned first by the presence of & # 39; supernova, now called 2018oh, by & # 39; group & # 39; five telescopes around the world (called Automated Survey for All Full supernovae) that provided the images obtained at 4 & # 39; February 2018.
B & # 39; good fortune, the galaxy in which the supernova occurred, called UGC 478, was part of the campaign & # 39; observation of Kepler space galaxy. Scientists could then connect sensitive data & # 39; & # 39 with Kepler; observations specialized color of the supernova by using other telescopes, including the Dark Energy Camera and Pan STARRS1 telescope.
Can & # 39; to be sound strange – why was exoplanet hunter looking at distant galaxies? Kepler repeatedly take images of wide & # 39; the same spots in its survey, and can & # 39; observe thousands of & # 39; galaxies at a time. In addition, it is believed to be sensitive to small changes in the amount of & # 39; light emitted by objects, because they usually seek the light changes light caused by passing planets & # 39; ahead of star & # 39; away.
2018oh supernova is a Type 1, based on the way seen its light. The models show that these supernovae from stars which one, a white dwarf, takes a lot of other mass before exploding. This is the fourth & # 39; type 1a supernova spotted in Kepler survey yet, and is the closest and brightest with more accurate data.
Number & # 39; researchers recently released analysis of the supernova cleaned. Two such results have found that the light curve graph, or the amount of & # 39; light over time, did not appear as a uniform curve. Instead, had a piece of & # 39; straight line & # 39; above, where the supernova improved better than expected for five days, before bend & # 39; above, suggest that there were two different processes.
They also noted that the supernova appeared more than others.
So, what was causing turning both sides of & # 39; this supernova? There are several ideas. Perhaps the light interacts with & # 39; star nearby, offered fuel for the explosion. Or maybe there was Hells shell on the surface of the white dwarf, which provided more material to connect. Or maybe there was shock & # 39; radioactive nickel graded b & # 39; irregular manner in the star, who was light signature adds. Further observations with the telescope Swift X-Ray seemed to exclude interactions with the dust surrounding the star exploded.
One researcher talked to think it is still early to answer – and maybe it's time to go back to the drawing board. "The people want to go back to theoretical books and jimmudikaw the different ways that early emission can & # 39; is produced," said Maximillian Stritzinger, physical in University & # 39; Aarhus in Denmark studied the colors emitted by these type 1a supernovae, Gizmodo said.
The supernova joins & # 39; list & # 39; 1as type hard to describe, according to the studies. But there is still hope. Kepler can & # 39; still more supernovae observed, and that data can & # 39; continue to help scientists unravel the mystery.[ApJ, ApJ, ApJL, ApJL]