Cosmologists use gravitational waves to uncover the true nature of dark matter, the mysterious substance that constitutes 85 percent of the Universe.
Traditionally, scientists have attempted to observe missing galaxies directly. However, these galaxies are often small and located at great distances, making them extremely challenging to detect, even with advanced telescopes. In the study presented at the meeting, the researchers proposed a novel approach, suggesting that gravitational waves could indirectly measure the abundance of missing galaxies.
The team's simulations revealed that in models where dark matter interacts with other particles, there are significantly fewer mergers between black holes in the distant universe. While this effect is currently too subtle to be observed by existing gravitational wave experiments, it will be a prime target for the next generation of observatories currently in development.Dr.
Professor Mairi Sakellariadou of King's College London, also a member of the research team, emphasized the potential of third-generation gravitational wave data. She said, "Third-generation gravitational wave data will offer a novel and independent way to test the current model that describes the evolution of our Universe and shed light on the yet unknown nature of dark matter."
As scientists continue to explore the vast mysteries of the cosmos, using gravitational waves to hunt for dark matter presents anto unlock some of the universe's most elusive secrets. The research team's findings have opened up a new frontier in our understanding of dark matter, offering hope for a brighter future in unraveling the enigmatic nature of the cosmos.
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