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“Kepler” has helped to detect unusual supernova

«Кеплер» помог обнаружить необычную сверхновуюResearchers have proposed two theories.

Observations of the space telescope “Kepler”, which has already completed work has helped astronomers to detect unusual supernova in the constellation of Cancer.

At the end of the life cycle of a massive star is a bright flash – an explosion, accompanied by the emission into space of matter. This phenomenon is called supernova. Thanks to the observations of the telescope “Kepler” has completed its mission and other ground-based telescopes, astronomers were able to detect bright light coming from the supernova SN 2018oh.

SN 2018oh is a spiral galaxy UGC 4780, in the constellation of Cancer. The phenomenon klassificeret as a supernova type Ia: these supernovae usually brighten for approximately three weeks before beginning to fade.

However, it is noted that this supernova that Kepler observed just a few days after the initial explosion, increased brightness is approximately three times faster than a conventional supernova, before he reached peak brightness. Data obtained by ground-based telescopes, has discovered a blue tint SN 2018oh: as indicated, this means that this supernova is very hot.

To explain the observations, “Kepler” and other telescopes, researchers have proposed two theories. According to one, the supernova SN 2018oh may be the result of absorption of the white dwarf the matter of its companion star, which led to the explosion: as expected, the shock wave from the explosion of a white dwarf that has reached the companion star, eventually led to this extremely bright and hot phenomenon, detektirovaniem telescopes.

It is also assumed that unusual phenomenon can be explained by the Nickel content in the outer layers of the exploding material. However, scientists note the need for further studies of type Ia supernovas – it is important to understand how they are formed and evolyutsioniruet. This, as stated, will also help astronomers more accurately determine the expansion rate of the Universe.

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Although the telescope “Kepler” has run out of fuel and the mission of the unit officially came to an end, during his tenure, he has detected more than 40 candidates in a supernova, which should be studied further.

Details about the detection of SN 2018oh the researchers say in three works, one of which was accepted for publication in the Astrophysical journal Letters, and two others were accepted for publication in The Astrophysical Journal. Briefly about the results of a study reported in the material on the website NASA.

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