All articles tagged with #boson stars
A recent study suggests that particle interactions within the first second after the Big Bang could have led to the formation of various exotic objects such as black holes, boson stars, and cannibal stars, indicating a complex and rich early universe phenomenology.
Scientists have proposed a new approach to gravitational-wave data analysis, suggesting that LIGO and Virgo may have detected a merger of dark-matter stars. By taking derivatives on the detector data instead of integrals on their simulations, the team has simplified the process of obtaining templates for comparison with LIGO-Virgo data, allowing for safe analysis of any source that supercomputers can simulate. This new technique has been applied to compare gravitational-wave events to simulations for boson-star mergers, with one mysterious event, GW190521, found to be consistent with such simulations, potentially indicating the presence of dark-matter stars.
New research suggests that invisible stars made of dark matter, known as boson stars, may be dying in massive explosions called "bosenovas." These explosions would be completely invisible but could be detected through ultralight dark matter detectors. Boson stars, made of a type of particle called a boson, would slowly gain mass over time until reaching a critical tipping point where they collapse, releasing energy in the form of high-energy particles. The researchers hope that experiments searching for lightweight dark matter will find traces of these bosenova explosions.
Astronomers have discovered a peculiar star system observed by the European Space Agency's Gaia satellite, which may be a never-before-seen type of star made of invisible dark matter. The system consists of a sunlike star and a mysterious companion, which is much more massive. While one possibility is that it's a black hole, researchers propose that it could be a clump of dark matter particles, known as boson stars. This unique system gives us a rare opportunity to study the behavior of strong gravity, allowing us to examine Einstein's theory of general relativity to see if it holds up.
Astronomers have discovered a peculiar star system observed by the European Space Agency's Gaia satellite, which may be a never-before-seen type of star made of invisible dark matter. The system consists of a sunlike star and a mysterious companion, which is much more massive. While the companion could be a black hole, researchers suggest it could be a clump of dark matter particles, known as boson stars. The researchers pointed out that a simple model of boson dark matter could produce enough boson stars to make this result in the Gaia data plausible, and that replacing a putative black hole with a boson star could explain all of the observational data.