Overview
- ESA’s XMM-Newton and JAXA’s XRISM captured a brief X-ray burst followed by powerful outflows in the active galaxy NGC 3783.
- High-resolution spectroscopy from XRISM’s Resolve and XMM-Newton’s EPIC measured wind speeds near 60,000 km/s, about one-fifth the speed of light.
- The winds formed within roughly a day of the flare, providing the first direct observation of such rapid onset in an active galactic nucleus.
- The central black hole is estimated at about 30 million solar masses and drives a bright, energetic nucleus that emits jets and winds.
- The findings, published in Astronomy and Astrophysics, reflect a joint ESA–JAXA–NASA effort and show how complementary instruments can decode fast AGN outflows.