Could Alien Mega-Structures Explain Erratic Dimming of 'Tabby's Star?'

By Angel Soleil, | August 27, 2016

Gamma-Ray Burst From Chandra X-Ray Observatory

Gamma-Ray Burst From Chandra X-Ray Observatory

Tabetha Boyajian, the astronomer who discovered the special star called "Tabby's Star," has finally revealed the first data she gathered from her telescope survey.

She has been using the Las Cumbres Observatory Global Telescope Network to observe the erratic dimming's of the star that is 1,480 light years away. There are many explanations for the star's strange flickering patterns. However, Boyajian is leaning towards the possibility of alien mega structures.

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Boyajian thought that the best place to look for aliens was through the "Tabby's Star." She started a Kickstarter campaign which has garnered the support of 1,762 people. To thank her supporters, she sent them an e-mail containing a sneak-peak of the data that she has gathered.

"Tabby's Star" has earned a celebrity status since its discovery more than five years ago. On March 2011, the "Planet Hunters" detected that something huge was passing in front of the star - big enough to block 15 percent of its light. The same thing happened on 2013, but this time, it blocked 22 percent of the star's light. Aside from the blocking, the data also revealed some smaller and asymmetrical dints in brightness.

When the scientists informed Boyajian, she took the time to brainstorm for an astronomical explanation. It was not until another astronomer, Jason Wright, gave her the idea about alien megastructures circling the star that embraced it as a hypothesis. But she didn't have enough resources to be able to monitor the star's activities on a daily basis. So in May 2016, she started the Kickstarter page for the Most Mysterious Star in the Universe.

Boyajian and the team were able to raise more than $107,000 in donations for the Kickstarter page which allowed them to use the Las Cumbres telescope network to monitor the star for a year.

Since May, the project has been observing the "Tabby's Star" every two hours or so in multiple colors. Despite Boyajian's data, which is only revealed to the backers of the Kickstarter campaign, it is still unclear when the star will start acting up again.

Wright, an astronomer at Pennsylvania State University, said that although the alien megastructure hypothesis is consistent with the sustained dimming's of the "Tabby's Star," other explanations would eventually surface since he thinks that E.T scenario is very unlikely.

"It's also possible that the alien megastructure - if it exists - is fully constructed, and some parts are just denser than others. That would naturally make the star get brighter and dimmer, as dense parts of the swarm came around," he said.

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