The Minispiral in the Galactic Center revisited
Abstract
We present the results of a re-examination of a [Ne II] line emission data cube (\lambda 12.8 \mu m) and discuss the kinematic structure of the inner \sim 3 \times 4 pc of the Galaxy. The quality of [Ne II] as a tracer of ionized gas is examined by comparing it to radio data. A three dimensional representation of the data cube allows us to disentangle features which are projected onto the same location on the sky. A model of gas streams in different planes is fitted to the data. We find that most of the material is located in a main plane which itself is defined by the inner edge of the Circum-Nuclear Disk in the Galactic Center. Finally, we present a possible three dimensional model of the gas streams.
Cite
@article{arxiv.astro-ph/9904096,
title = {The Minispiral in the Galactic Center revisited},
author = {Bernd Vollmer and Wolfgang J. Duschl},
journal= {arXiv preprint arXiv:astro-ph/9904096},
year = {2009}
}
Comments
12 pages, 18 figures; submitted to New Astronomy; higher resolution version and two animations available via anonymous ftp ftp://ftp.ita.uni-heidelberg.de/pub/ITA/wjd/Minispiral