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Galaxy ESO 253-3 periodic brightening (114 Days)

In space research computers play an important role in creating patterns based on their observations and data. Researchers are doing this for more than 50 years and still continues to improve if they know how to use data. It appears to a human sometimes to spot a pattern that no one expected to be there.
This kind of situation occurs in discovering the consistent active galaxy. Anna Payne, a graduate student at the University of Hawaii while observing the data by All Sky Automated Survey for Supernovae (ASAS-SN) and spotted that one of the galaxy called as ESO 253-3 is brightening periodically 114 days.
When galaxies appear to bright periodically it is a sign of active galaxies and what Ms. Payne has spotted is known as ASASSN-14ko. According to NASA active galaxies are the one that have a bright and a variable center and to find that type of regular brightening pattern scientists has spent over a decade in it.

The main benefit of this types of repetition is that it can be easily predictable. After the data was first observed by Ms. Payne in March 2020 it becomes very easy to guess the next occurrence and in this case it was on May 17th, September 7th and December 20th of same year.
Researchers have been constantly observing the SWIFT observatory and noted that the increase in brightness is as expected and on the right time. The brightening of galaxy lasted for 5 days while lightning the southern constellation of Pictor.

Currently there are three theories to be look at; the first theory tells that two supermassive black holes have to be at the center of ASASSN-14ko in such a way that it causes consistent light fluctuation. But if the two black holes are not close to each other than it won’t be possible to watch the effect.
The second theory states that star has to be in the orbit of at least one of the black holes which causes disturbance when it passed between the earth and the black hole.

The third theory also known as the tidal disruption event is the most credible theory according to the researchers. What happens according to this theory is a star in an oval shaped orbiting around the black hole and when it approaches the black hole, its abnormality acquires a piece of star which creates a bright flash and during this process star loses some of its mass.
Now as scientists have idea about the singularity of this one galaxy they will continue to observe and analyse at their best with the equipment available to them and also hopes that they will unveil its regularity secrets. It also gives the better understanding of how galaxies grows.