Radio galaxy from 12.5 billion years ago may be most powerful ever found
Astronomers have confirmed a powerful radio galaxy from nearly 12.5 billion years ago. The source, TXS 2354+015, was originally identified as a high-redshift candidate from its characteristic drop in optical light, and follow-up spectroscopy placed it at a redshift of 4.946. Their paper was posted to the arXiv preprint server on Sept. 23.
Astronomers have discovered a powerful radio galaxy from nearly 12.5 billion years ago, which may be the most energetic of its kind ever found. The galaxy, known as TXS 2354+015, was identified through a combination of deep optical imaging and radio catalogs, using the Lyman-break technique to pinpoint its extreme distance. With a redshift of 4.946, the galaxy existed when the universe was just 1.1 billion to 1.3 billion years old.
The discovery of this high-z RLAGN, which is typically obscured by a bubble of dusty gas, provides valuable insights into the early universe's galaxy formation and evolution processes. The detection of TXS 2354+015 through the Lyman-break technique highlights the importance of integrating different observational methods to uncover hidden cosmic phenomena.
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