Friday, February 12, 2016

Physicist: LISA probe does not become unnecessary due to the discovery of gravitational waves – RIA Novosti



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Michael Gorodetsky, Russian physicist

© RQC

 The collision of two black holes

© REUTERS / Caltech / MIT / LIGO Laboratory

Moscow, 12 February – RIA Novosti . Russian physicist Mikhail Gorodetsky did not believe that he discovered his gravitational waves counterparts generated by colliding black holes, put an end to the project LISA orbital gravitational observatory and its prototype LISA the Pathfinder, which is now undergoing tests in orbit.

” LISA – a project with a very long and complex history, and many times he had been postponed and postponed, its financing trims well, they gathered strength and finally started to move forward, running LISA Pathfinder Hopefully, they’ll be fine, if the launch.. all instruments will be successful “, – said Gorodetsky

According to him, the discovery of gravitational waves LIGO detector, on which he is working with a group of Russian scientists from Moscow State University and Nizhny Novgorod Institute of applied physics of the Russian Academy of Sciences, does not negate the LISA project. and it does not make it meaningless. As the scientists explain, this probe and its prototype is looking for gravitational waves emanating not from merging neutron stars and black holes and compact objects of a different type.

 So the artist imagined the galaxy in the constellation of Phoenix, in the center of which there are just two black holes

© NASA

” LISA is focused on the search for gravitational waves completely different scale – if LIGO operates the wavelength of the order of thousands or tens of thousands of kilometers, that LISA will work with the waves of the order of millions of kilometers why this project relevance has not fallen “, -. concludes physicist

Gravitational waves like yesterday told domestic and foreign physicists. LIGO detectors were found September 14, 2015 at 13:51 Moscow time. As shown by the data, they were generated by a pair of merging black holes whose mass in 29 and 36 times greater than the sun, at a distance of 1.3 billion light years from Earth. For a split second about three solar masses turned into gravitational waves, the maximum radiation power which was about 50 times greater than that of the entire visible universe.

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