Overview
- Published in Science, the UC Irvine and Caltech/IPAC-led team reports a precessing kiloparsec-scale radio jet in VV 340a that powers a galaxy-wide outflow.
- JWST reveals an unusually extended coronal plasma structure stretching roughly 20,000 light-years from the galaxy’s center.
- Keck’s KCWI maps cooler gas pushed to the largest distances, enabling estimates of the outflow’s reach and persistence.
- VLA imaging shows an S-shaped, helical jet consistent with precession, with ALMA data helping characterize the multiphase gas.
- The outflow removes about 19.4 ± 7.9 solar masses of gas per year, likely damping future star formation, and the team plans higher-resolution radio follow-up and a survey of ~32 similar galaxies to test causes including a possible undetected binary black hole.