Tuesday, October 4, 2016

As radio astronomers have calculated the speed of the annexation of Crimea – Газета.Ru

One of the most widely read news Tuesday was the news that the Crimean Peninsula is moving towards the mainland of Russia.

And moving in the physical rather than the political sense.

Source open were scientists, or rather, the Director of the Institute of applied astronomy, RAS Alexander Ipatov, whose words gave the Agency “Interfax”.

“At the time of the annexation of Crimea to Russia, we tried to answer the question: whither Crimea? And we’ve determined that he’s moving to Russia”, — said Ipatov.

Despite the fact that this statement sounds like a joke, it is the result of serious research, the scientist has added. “Actually it’s not a joke, although very similar,” — said Ipatov. Still, he managed to clarify that Crimea is moving approximately North-East, and find out helped the Russian radiointerferometric telescopes complex “quasar-KVO”.

Word on the progress of the Peninsula in the direction of their native shores, where the name of the inhabitants of the Crimea in 2014, came at the Bottom of the space science, which on this day was held in space research Institute, from scientist who have not a lot of journalists for all sorts of mistakes.

it So happened that this time was not without them, “Interfax” called “quasar-KVO” is not radiointerferometric, and somehow the “radiometric” complex.

“Газета.Ru” figured out where and why moved to the Crimea and as they said. Surveillance in question was conducted in the framework of the global geodetic network IVS. “Observations on the Crimea began in 1994, and the last experiment I worked on was in November of 2014,” — said Leonid Petrov, an employee of Astrogator the United States.

by the Way, now Petrov is on a visit to the ASC and works with colleagues on the subject of Russian space radio telescope “RadioAstron”. IVS is an international collaboration whose objective is the assessment of continental drift and the solution of geodetic tasks by the so-called radiointerferometry with extra-base when remote from each other radio telescopes allow to increase angular resolution in astronomical observations of objects in the universe.

And watching, for example, for a distant quasar, of its own motion where the sky is minimal, VLBI allows high accuracy to assess position and the movement of individual antennas.

One of such plates, 22-meter telescope RT-22 on the southern Crimean coast in the Blue Bay, and let for 21 years to measure the drift of the Peninsula. The “Kvazar-KVO” — three Russian antennas, standing near Petersburg, Karachayevo-Cherkessia and the Republic of Buryatia, was an important part of a large system of antennas spaced around the world.

“is Called the rate of 2.9 millimeters per year are realistic,” added Petrov.

According to him, the movement of the Crimea to mainland Russia is explained by the movement and deformation of the Eurasian and African tectonic plates.

currently, However, the method of VLBI came to the aid of the method, giving a more detailed picture of the movement, is a method of GPS. Therefore, the Institute of applied astronomy in each of my Observatory has a GPS station: the GPS method allows for a more detailed and accurately assess movement of the continents.


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