On Wednesday, the astronomer of the whole world will simultaneously hold six press conferences, on which the first real image of a black hole, obtained using the Event Horizon telescope (EHT).
Of all the objects and forces in the universe, which we can not see, including dark matter and dark energy, nothing causes such curiosity as what absorbs whole stars and cannot be described by the familiar laws of physics. Despite the fact that scientists began to argue about the «black stars» from the 18th century, it is still known very little about them, and all the descriptions are based on theoretical models.
Because of the unique features of these objects, a giant telescope would be required to observe them, which would have collapsed under their own weight. To solve this problem, astronomers combined several observatories, as if they were fragments of a giant mirror. In April 2017, eight of such radio telescope scattered around the globe began to observe two supermassive black holes. Next week, researchers must submit real enlarged images of one of them.
It can be a Sagittarius A, an object located in the center of our galaxy, with a cross-section of 44 million km and 4 million times heavier than the sun. Although this is a huge black hole, but since it is located at a distance of 245 trillion km from the ground, it does not care what to try to photograph a tennis ball on the phone that fell on the surface of the moon.
Another object is located in the center of the M87 galaxy and 1500 times more massive than Sagittarius A.
The problem of their study is associated not only with the absorption of light on the border of the horizon of events and the distance, but also with the cosmic dust, the stars who are hindering the review. Therefore, the data is collected by an array of telescopes, analyzed and compared, and visualization spaces are filled with special algorithms.
Although in 2015, astrophysicists used gravitational waves to observe two colonating black holes, but they were tiny (60 times the massive of the Sun) compared to any of those followed by EHT. Researchers suggest that in millions of times larger objects may differ, but we just do not know about it yet.
Recall that scientists are developing