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DECam and Gemini South discover three tiny 'stellar-ghost-town' galaxies
- Astronomers have discovered three ultra-faint dwarf galaxies named Sculptor A, B, and C, located about 6.5 million light-years from Earth, using data from the DESI Legacy Imaging Surveys and the Gemini South telescope.
- The galaxies contain only very old stars and appear empty of gas, supporting theories that star formation was cut off in the early universe.
- To identify more ultra-faint dwarf galaxies, David Sand and his team are training an artificial intelligence system to automate the search process.
- The findings suggest that these galaxies may provide important insights into the early universe and the conditions of galaxy formation.
12 Articles
12 Articles
'Cosmic Ghost Towns' Could Hold Clues the Mysteries of Galactic Structure - The Debrief
University of Arizona Steward Observatory astronomers have discovered “cosmic ghost towns” that were halted in their development by cosmic forces billions of years ago. The “ghost towns,” named Sculptor A, B, and C, consist of three faint and ultra-faint galaxies about 6.5 million light-years from Earth. Despite their barren nature, these desolate regions of space may hold surprisingly important answers about the structure of our modern galaxy. …
Three tiny 'stellar-ghost-town' galaxies discovered
By combining data from the DESI Legacy Imaging Surveys and the Gemini South telescope, astronomers have investigated three ultra-faint dwarf galaxies that reside in a region of space isolated from the environmental influence of larger objects. The galaxies, located in the direction of NGC 300, were found to contain only very old stars, supporting the theory that events in the early Universe cut star formation short in the smallest galaxies.
DECam and Gemini South discover three tiny 'stellar-ghost-town' galaxies
By combining data from the DESI Legacy Imaging Surveys and the Gemini South telescope, astronomers have investigated three ultra-faint dwarf galaxies that reside in a region of space isolated from the environmental influence of larger objects. The galaxies, located in the direction of NGC 300, were found to contain only very old stars, supporting the theory that events in the early universe cut star formation short in the smallest galaxies.
Silent Ghost Towns of Space: Why Some Galaxies Stopped Evolving
The Silent Echo of Ghost Town Galaxies: What Their Quiescence Reveals About the Universe Welcome to FreeAstroScience, where we simplify the vast complexities of the cosmos. Have you ever paused to think about galaxies that stopped evolving eons ago, their stellar lives frozen in time? These so-called “ghost town” galaxies are like relics, offering profound insights into the early universe. Today, let’s journey together to explore three newly dis…
Astronomy, always in search of the deepest mysteries of the cosmos, has taken a significant new step with the discovery of three ultra-weak dwarf galaxies. This breakthrough, the result of collaboration between powerful telescopes located in Chile and an international team of scientists, sheds light on the events that occurred in the primitive Universe [...]
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