Bringing us one step closer to solving the 'missing satellites problem,' researchers have discovered two new satellite galaxies.
For years, astronomers have worried about how to explain why the Milky Way has fewer satellite galaxies than the standard dark matter model predicts. This is called the"missing satellites problem." In order to bring us closer to solving this problem, an international team of researchers used data from the Hyper Suprime-Cam Subaru Strategic Program to discover two completely new satellite galaxies.on June 8, 2024 by a team of researchers from Japan, Taiwan, and America.
The research team recognized the possibility that there are likely many undiscovered, small satellite galaxies which are far away and difficult to detect. The powerful ability of the Subaru telescope -- which sits atop an isolated mountain above the clouds in Hawaii -- is well-suited to find these galaxies. In fact, this research team previously found three new dwarf galaxies using the Subaru telescope.
To better characterize the actual amount of satellite galaxies, more high-resolution imaging and analysis is required."The next step is to use a more powerful telescope that captures a wider view of the sky," explains Chiba,"Next year, the Vera C. Rubin Observatory in Chile will be used to fulfill that purpose. I hope that many new satellite galaxies will be discovered.
Satellites Astrophysics Astronomy Dark Matter NASA Space Telescopes Space Exploration
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