- Science
- Global
Bright blazar reveals 433-day optical quasi-periodic oscillation across nine years
- May 12, 2026 at 2:40 PM
- 7 views
By analyzing the data from the Whole Earth Blazar Telescope (WEBT), an international team of astronomers has discovered optical quasi-periodic oscillation (QPO) in a bright quasar known as 3C 454.3. It is so far one of the most persistent QPOs detected in the optical band. The finding was reported in a paper published April 30 on the arXiv pre-print server.
Originally published at Phys.org