The future LISA laser interferometric antenna will become a large-scale instrument that allows studying various cosmic phenomena, including black hole collisions, as well as gravitational waves moving through space and time. Scientists believe that the device is able to find an elusive particle of dark matter.
LISA will allow astrophysicists to observe gravitational waves emitted by black holes when they collide or capture other black holes. LISA will consist of three spacecraft orbiting the sun in a triangular “constellation”. Passing gravitational waves strongly distort the sides of the triangle and these minimal oscillations can be fixed by laser beams. As a result, LISA will allow to study phenomena that are invisible in different spectra of light.
Snapshots of a 120-millionth simulation of particles of two merging dwarf galaxies, each of which holds a black hole of 6-7.5 billion years
The researchers also found that LISA will be able to tell valuable information about dark matter. It is believed that particles of dark matter make up about 85% of the matter of the universe. But all this is only a hypothesis, because it fails to fix. However, calculations show that many galaxies will scatter, instead of rotating together, if they are not held in large amounts of dark matter. First of all, it works for dwarf galaxies. Although they are small and weak, they are also most common in space. Astrophysicists are interested in the fact that dark matter prevails in their structures, which is why they become natural laboratories for study.
Communication of black holes and dark matter
A new study conducted computer simulations with high resolution regarding the birth of dwarf galaxies, which led to unexpected results. By calculating the interaction of dark matter, stars, and central black holes, the team revealed a strong link between the black hole fusion rates and the amount of dark matter in the galactic center. That is, the measurement of gravitational waves at the confluence of black holes will allow us to learn more about the properties of a hypothetical dark matter particle.
The first discovered connection between black holes and dark matter can be described mathematically. This is an important point, as the LISA project is being prepared. The preliminary results of the simulation joyfully met in the scientific world. The mission starts in 15 years, but it will allow us to link the physics of cosmology and particles.
