Investigation of the obscuring circumnuclear torus in the active galaxy Mrk231
| dc.creator | Kl"ockner, Hans-Rainer | |
| dc.creator | Baan, Willem A. | |
| dc.creator | Garrett, Michael A. | |
| dc.date | 2003-02-19 | |
| dc.date.accessioned | 2026-07-07T02:07:40Z | |
| dc.date.available | 2026-07-07T02:07:40Z | |
| dc.description | Here we report on observations of powerful hydroxyl (OH) line emissions that trace the obscuring material within the circumnuclear environment of the galaxy Markarian 231. The hydroxyl (mega)-maser emission shows the characteristics of a rotating, dusty, molecular torus (or thick disk) located between 30 and 100 pc from the central engine. We now have a clear view of the physical conditions, the kinematics and the spatial structure of this material on intermediate size scales, confirming the main tenets of unification models. | |
| dc.description | 10 pages, including 3 Figures, published in Nature Vol 421 2003; the published pdf--file and higher quality images are available at http://www.astro.rug.nl/~hrkloeck/np/pubmrk231.html | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0302395 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0302395 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/5769 | |
| dc.subject | Astrophysics | |
| dc.title | Investigation of the obscuring circumnuclear torus in the active galaxy Mrk231 | |
| dc.type | text |