Home > Astronomy, Black Holes, Galaxies, General Astronomy > Fat Black Holes Grown Up In Cities: “Observational” Result Using Virtual Observatory

Fat Black Holes Grown Up In Cities: “Observational” Result Using Virtual Observatory


A research team, led by reseacher at the National Astronomical Observatory of Japan (NAOJ), discovered that the more massive black holes tend to be located in galactic environments with higher density . This finding indicates that galaxies in a dense area often merge together, causing the growth of massive black holes.

The research team investigated environment in which a galaxy with a massive black hole at its center exists. The team’s research extended over data for approximately 70 million galaxies, with approximately 10,000 massive black holes researched. This vast amount of data was collected through the Virtual Observatory; it connects a variety of astronomical databases around the world via the Internet, making it possible to comprehensively use the collected data.

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