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Like a gigantic bullet, the hollow galaxy of the Milky Way



KOMPAS.com – Scientists have just discovered that the Milky Way galaxy has a "bullet hole". This finding was first revealed at a conference of the American Physical Society in April in Denver, USA.

According to Ani Bonaca, a researcher at the Center for Astrophysics Harvard Smithsonian, a bullet hole is in the longest star in the Milky Way, GD-1.

For information, the star current is a star line that moves together across galaxies. This flow often comes from smaller lumps of colliding stars.

Simply put, the stars on GD-1 are the remains of "ball-like clusters" that have long fallen into the Milky Way, and then stretch in the long line in our sky.

Also read: Mystery of the gravity of the galaxy The Milky Way is finally solved

Under normal conditions, this stream of the star should have only one line extending from the gravity of our galaxy.

However, Bonaca found that GD-1 has two gaps. Strangely, the two slits had the edges of the irregular shape, as if something went down a lot through the course of the star.

Bonaca said that GD-1 was hit by an invisible bullet.

"We can not map (bullets) any great objects we've been watching," Bonaca said Live ScienceOn Wednesday (May 15, 2019).

"(Bullets) this is far more than a star … Something that has a mass of millions of times the sun.Therefore, there are no stars corresponding to that mass.We can turn it off.And if it's a black hole, it will be supermassive as we find ourselves in the center our galaxy, "he continued.

He emphasized that it is not impossible to have other supermassive black holes in the Milky Way galaxy. However, there are no signs like torches and radiation.

Giant Dark Material

Summarize from FuturizamOn Wednesday (May 15, 2019), because there was no evidence of a black hole, Bonaca suspected there was a ball of dark matter that hit the stars.

However, it does not exclude other possibilities.

"It could be a glittering object that goes somewhere and hides somewhere else in the galaxy," Bonaca said.

So far, the researchers did not know what hit the star. But the discovery of the hole in the Milky Way galaxy is something completely new.

Bonaca himself has drawn conclusions about the hole after observing data from the Gaia mission, the European Space Agency (ESA) program to map billions of stars in our galaxy.

So far, Bonacini is still so new that they have not been published in reviewed journals. However, there are many other researchers who are interested in Bonacin's findings.

Read also: Crash Time Surveyors in the Milky Way and Andromeda


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