New Study Reveals Dense Early-Universe Quasar Environments
Using the Dark Energy Camera, researchers found that early-universe quasars are surrounded by numerous companion galaxies, explaining past conflicting observations.
- The study was led by Trystan Lambert and utilized the Dark Energy Camera (DECam) on the Blanco telescope in Chile.
- Researchers mapped the area around quasar VIK J2348-3054 and found 38 companion galaxies within 60 million light-years.
- No companion galaxies were detected within 15 million light-years of the quasar, suggesting intense radiation may inhibit star formation nearby.
- DECam's wide field of view and specialized filters were crucial in detecting Lyman-alpha radiation from surrounding galaxies.
- The findings clarify previous conflicting studies and highlight the importance of large-area surveys for understanding quasar environments.
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