Bow-and-arrow-shaped radio galaxy discovered by citizen scientist
A citizen scientist has discovered a rare bow-and-arrow-shaped radio galaxy, named J0019+1501, using data from the Very Large Array Sky Survey. The unusual double-lobed structure spans about 1.2 million light-years and features a straight jet resembling an arrow, offering new insights into radio galaxy formation and evolution.
Background
- Citizen scientists are volunteers who help analyze scientific data — in this case, participants in the "Radio Galaxy Zoo" project, part of the Zooniverse platform where anyone can classify astronomical images.
- The discovery involves a "radio galaxy" — a type of galaxy that emits unusually strong radio waves, typically powered by a supermassive black hole at its center shooting out jets of plasma.
- The "bow-and-arrow" shape is a distinctive, previously unseen morphology for such jets. Finding unusual shapes helps astronomers understand how black holes interact with their host galaxies and the space around them.
- The research paper was published in Monthly Notices of the Royal Astronomical Society (MNRAS), a major peer-reviewed astronomy journal.