The Minispiral in the Galactic Center revisited

Citation
B. Vollmer et Wj. Duschl, The Minispiral in the Galactic Center revisited, NEW ASTRON, 4(8), 2000, pp. 581-590
Citations number
12
Categorie Soggetti
Space Sciences
Journal title
NEW ASTRONOMY
ISSN journal
13841092 → ACNP
Volume
4
Issue
8
Year of publication
2000
Pages
581 - 590
Database
ISI
SICI code
1384-1092(20000308)4:8<581:TMITGC>2.0.ZU;2-2
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 si milar to 3 X 4 pc of the Galaxy. The quality of [Ne II] as a tracer of ioni zed gas is examined by comparing it to radio data. A three-dimensional repr esentation of the data cube allows us to disentangle features which are pro jected onto the same location on the sky. A model of gas streams in differe nt planes is fitted to the data. We find that most of the material is locat ed 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-d imensional model of the gas streams. (C) 2000 Elsevier Science B.V. All rig hts reserved.