NGC 6240 的 HST 观测
摘要
presented of the double nucleus in the merger system NGC 6240. We find that: (a) the kinematics of the ionized gas is similar to that of the molecular gas, despite a different morphology; (b) the gaseous and stellar kinematics are quite different, suggesting an early merger stage; (c) neither the gaseous nor the stellar kinematics show an obvious sign of the supermassive black hole believed to be responsible for the X-ray emission of NGC 6240; and (d) the steep off-nuclear velocity gradient is not due to a 10E11 solar mass black hole, in contrast to earlier suggestions.
引用
@article{arxiv.astro-ph/0106368,
title = {HST observations of NGC 6240},
author = {J. Gerssen and R. P. van der Marel and D. Axon and C. Mihos and L. Hernquist and J. E. Barnes},
journal= {arXiv preprint arXiv:astro-ph/0106368},
year = {2007}
}
备注
To appear in: "The central kpc of starbursts and AGN: the La Palma connection", Eds. J.H. Knapen, J.E. Beckman, I. Shlosman and T.J. Mahoney, ASP conf. series, in press (2001)