James Webb Telescope Unveils Supermassive Black Hole in Southern Pinwheel Galaxy
April 24, 2025
Astronomers utilizing the James Webb Space Telescope have discovered evidence of a supermassive black hole at the center of the spiral galaxy Messier 83, also known as the Southern Pinwheel galaxy.
This groundbreaking discovery was facilitated by Webb's Mid-Infrared Instrument (MIRI), which identified highly ionized neon gas, a strong indicator of an active galactic nucleus (AGN).
Svea Hernandez, the lead author of the study, emphasized that the energy signatures detected exceed those produced by normal stars, reinforcing the likelihood of an AGN as the source.
Historically, M83 has posed challenges for astronomers, with prior observations suggesting that any existing black hole was either dormant or obscured by dust, making this finding particularly significant.
These new findings challenge earlier assumptions that ruled out the presence of an AGN in M83, thereby opening new avenues for exploration in the field of black hole astrophysics.
The study highlights the James Webb Space Telescope's remarkable ability to reveal hidden structures within galaxies, enhancing our understanding of some of the universe's most elusive phenomena.
Webb's advanced sensitivity and spatial resolution played a crucial role in uncovering previously undetectable features in the nucleus of M83.
Looking ahead, the research team plans to conduct follow-up studies using other observatories, such as the Atacama Large Millimeter/submillimeter Array (ALMA) and the Very Large Telescope (VLT), to confirm the presence of the black hole and gain deeper insights into the gas emissions.
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Phys.org • Apr 24, 2025
Webb spots clues of a black hole at the heart of nearby galaxy M83