Gravitational Wave Background - Astronarium 166

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Astronarium

Published on Oct 15, 2023
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They are created when space-time itself expands and contracts. Now it turns out that the Universe is simply filled with them. Gravitational waves are one of the most important discoveries of modern astrophysics. The results of many years of observations have shown that they reach us from all sides. In this program, we will show what is known about this cosmic background of gravitational waves. We invite you to Astronarium! 00:00 - Introduction 02:42 - NANOgrav and pulsars 04:55 - The entire galaxy as a detector 07:00 - What could be the source of the signal 09:39 - Merger of supermassive black holes 11:22 - Other possibilities 14:30 - What is the result of the noise? 18:02 - Traces of cosmic inflation? 21:43 - Summary Nationwide premiere on TVP Nauka: October 13, 2023 Regional premiere on TVP3 Bydgoszcz: August 25, 2023 #GravitationalWaves #gravity #astronomy

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