The Event Horizon Telescope (EHT) is finally able to take an image of Sagittarius A*. From April fifth to fourteenth this year. The virtual telescope that is been within the creating for the past 20 years can peer into the supermassive black hole at the centre of our galaxy. EHT is truly an array of radio telescopes placed in numerous countries around the globe. As well as the Atacama Large Millimetre/submillimeter Array in Chile. Event Horizon Telescope ready to take the first black hole photo.
By using a technique known as very-long-baseline interferometry. The EHT team turns all the taking part observatories into one large telescope that encompasses the total planet. We want a telescope that massive and powerful. As a result of Sagittarius, A* is, however, a little pinprick within the sky for us. Whereas scientists believe it’s a mass of around four million suns. It additionally solely measures around twenty million km or so across and is found 26,000 light-years far away from our planet. The EHT team says it’s like watching a grapefruit or a DVD on the moon from Earth.
To prepare the taking part observatories, the team equipped them with atomic clocks for the foremost precise time stamps and hard-drive modules with monumental storage capacities. Since the scientists expect to assemble a vast quantity of data. They deployed enough modules to match the capability of 10,000 laptops. Those hard drives are going to be flown out to the MIT hayrick Observatory. Wherever imaging algorithms can add up to EHT’s information, once the observation period is completed.
The researchers aforementioned it may take until the start of 2018 before we tend to see humanity’s 1st pic of a black hole. As for what they are expecting to examine, it will be one thing like what their simulation yielded last year:
Event Horizon Telescope ready to take the first black hole photo
Based on Einstein’s theory of general relativity, we’re supposed to see a crescent of the crescent of close a black blob. That light is emitted by gas and dirt before the black hole devours them. Whereas the dark blob is that the shadow cast over that mayhem. However what if we tend to see one thing else altogether?
“As I’ve aforementioned before, it’s never a decent plan to bet against Einstein, however, if we tend to did see one thing that was terribly totally different from what we tend to expect we might assess the idea of gravity.” Team leader Sheperd Doeleman from the Harvard-Smithsonian Center for Astrophysics told.
[Image credit: NASA/UMass/D.Wang et al., IR: NASA/STScI / Feryel Ozel(event horizon simulation)]