Description
Dense gas tracers are not commonly observed in AGNs. The purpose of this project was to deter-mine if the kinematics of the dense gas move in Keplerian orbits or are sensitive to out-flows/inflows as seen with CO gas. If the dense gas has ordered motion, it can possibly be used to measure the mass of the central black hole.
In this project I analyse the dense molecular gas tracers in the centre of four nearby Seyfert galax-ies measured by ALMA. For all four galaxies in our pilot study sample, CO gas is present, where two galaxies show rotation and two show signs of outflows.
I only detect dense gas (HCN, HCO+, CS, C2H) in one galaxy, NGC 4253. The question is if galaxy is special?
In my poster, I will present the data and characterise the dense gas dynamics and kinematics and discuss its implications.
| Field of study | Astrophysics |
|---|---|
| Supervisor | Marianne Vestergaard |
