Tabby's Star: Alien megastructure not the cause of dimming of the 'most mysterious star in the universe'

ScienceDaily | 1/3/2018 | Staff
iVchan (Posted by) Level 3
Click For Photo: https://www.sciencedaily.com/images/2018/01/180103101133_1_540x360.jpg

The mystery of Tabby's Star is so compelling that more than 1,700 people donated over $100,000 through a Kickstarter campaign in support of dedicated ground-based telescope time to observe and gather more data on the star through a network of telescopes around the world. As a result, a body of data collected by Boyajian and colleagues in partnership with the Las Cumbres Observatory is now available in a new paper in The Astrophysical Journal Letters.

"We were hoping that once we finally caught a dip happening in real time we could see if the dips were the same depth at all wavelengths. If they were nearly the same, this would suggest that the cause was something opaque, like an orbiting disk, planet, or star, or even large structures in space" said Wright, who is a co-author of the paper, titled "The First Post-Kepler Brightness Dips of KIC 8462852." Instead, the team found that the star got much dimmer at some wavelengths than at others.

Dust - Reason - Star - Data - Shows

"Dust is most likely the reason why the star's light appears to dim and brighten. The new data shows that different colors of light are being blocked at different intensities. Therefore, whatever is passing between us and the star is not opaque, as would be expected from a planet or alien megastructure," Boyajian said.

The scientists closely observed the star through the Las Cumbres Observatory from March 2016 to December 2017. Beginning in May 2017 there were four distinct episodes when the star's light dipped. Supporters from the crowdfunding campaign nominated and voted to name these episodes. The first two dips were named Elsie and Celeste. The last two were named after ancient lost cities -- Scotland's Scara Brae and Cambodia's Angkor. The authors write that in many ways what is happening with the star is like these lost...
(Excerpt) Read more at: ScienceDaily
0 other people are viewing this story
Wake Up To Breaking News!
Sign In or Register to comment.