Alicia Sintes

Alicia Sintes

Alicia Sintes
Cargo

Professor of Theoretical Physics at the University of the Balearic Islands in the Department of Physics & IAC3, and member of the Relativity and Gravitation group, which is part of the LIGO and GEO consortia and the e-LISA and Einstein Telescope projects

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Reactions: evidence found of a cosmic background of gravitational waves possibly produced by supermassive black hole collisions

The International Pulsar Timing Array (IPTA) consortium has discovered evidence for the existence of a cosmic background of gravitational waves. The results, published by different IPTA consortia in several scientific journals, would show that this cosmic background would be the result of collisions of supermassive black holes. In 2015, researchers from the LIGO and Virgo collaborations made the first direct observation of gravitational waves caused by the collision of two stellar-mass black holes. These waves oscillate several times per second. What the consortia have now found are gravitational waves emitted by supermassive binary black holes at the centre of galaxies, waves that oscillate on timescales of many years.

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