Columbus, Ohio – Astronomers have uncovered a set of faint manganese emission lines that could give scientists a fresh way to probe how galaxies have changed over cosmic time. The discovery, detailed in a study published in The Monthly Notices of the Royal Astronomical Society, stems from advanced computer modeling of how electrons interact with manganese ions – an element forged in supernova explosions.
Why Manganese Matters
Professor Anil Pradhan, a co‑author of the paper and faculty member at The Ohio State University, explained that manganese’s abundance rises as the universe ages. Because the element is produced alongside iron and other heavy metals in stellar explosions, its concentration can act like a “cosmic clock,” helping researchers gauge the age and evolution of distant gas clouds.
“Space and time are related, so measuring manganese abundances can grant us insight into the ever‑expanding nature of the universe,” Pradhan said.
From Theory to Observation
The team used high‑performance computing to model more than 700 potential emission lines, identifying several that are especially sensitive to changes in temperature and density within nebulae. While the work remains theoretical, the researchers plan to test the predictions against observations from the James Webb Space Telescope and ground‑based observatories capable of detecting subtle chemical differences across space and time.
Broader Implications
If validated, these manganese signatures could join other elemental markers such as oxygen and sulfur to paint a richer picture of the early universe’s conditions. Understanding how elements are created and distributed may also improve models of the universe’s overall chemical evolution.
The study was supported by the National Science Foundation and partially conducted at the Ohio Supercomputer Center. The researchers intend to make their results publicly available, allowing the wider scientific community to compare observations with the new atomic calculations.
Original reporting: WOWO News/Talk (Fort Wayne) — read the source article.
