Description
Ionized outflows are multiphase plasma streams extending from hundreds to thousands of parsecs from active galactic nuclei, representing a critical mechanism of galactic evolution. These complex gas flows, characterized by velocity ranges of 100-3000 km/s and diverse ionization states, play a crucial role in shaping galactic evolution and structure by removing or heating gas, starving galaxies of star-forming fuel.
To comprehensively understand these dynamic phenomena, high-resolution X-ray spectroscopic observations have become crucial. NGC 3783, a nearby Seyfert 1 galaxy with rich spectral characteristics, serves as an ideal astronomical laboratory for studying ionized outflows. This galaxy has been extensively investigated across multiple wavelengths and harbors one of the most substantial warm absorbers ever observed.
My work is based on a recent 10-day campaign on NGC 3783, representing an unprecedented, coordinated effort involving XRISM, XMM-Newton, and five additional space missions. The revolutionary spectral resolving power of XRISM combined with XMM RGS is a game-changer in the study of ionized outflows. We found that one ionized outflow has evolved to be twice as opaque as it was 20 years ago. Additionally, the high-quality data allows for a systematic search for partial covering by the outflow, which could be used to estimate the relative sizes of the disk and outer corona. Our results will offer new constraints on the structure and dynamics of AGN outflows.
| Talk category | NOVA Network 3 |
|---|---|
| Preference for a talk or poster | Talk |
| Talk preference for PhD students | Second year PhD |
