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The velocity field of UGC 6697 revisited
| Content Provider | Semantic Scholar |
|---|---|
| Author | Amram, Philippe Gavazzi, Gaëtan Marcelin, Michel Boselli, Alessandro Vilchez, Jose Manuel Iglesias-P'aramo, J. Tarenghi, Massimo |
| Copyright Year | 2001 |
| Abstract | The edge-on galaxy UGC 6697 has a peculiar morphological appearance: a high surface brightness SE component and what appears to be a tidal tail with blue color and low surface brightness extending toward the NW, as dramatically evidenced in subarcsecond broad band images taken with the VLT and in a deep Ha frame. Long-slit spectroscopy shows a 500 km/s rigid-body rotation curve with a sudden central velocity jump, of more than 200 km/s amplitude. Fabry-Perot observations of the Ha emission line enable us to trace a detailed 2D velocity field, confirming the complex kinematical behaviour, particularly in the circuninuclear region where multiple velocity components are clearly superposed on the same line of sight. This region hosts a double nucleus and shows sudden color and metallicity gradients, which can he reconciled with the complex velocity field assuming the presence of a second galaxy hidden behind the main body of UGC 6697. |
| Starting Page | 401 |
| Ending Page | 404 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/978-94-017-3311-3_90 |
| Alternate Webpage(s) | https://www.aanda.org/articles/aa/pdf/2001/39/aah2609.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/978-94-017-3311-3_90 |
| Volume Number | 281 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
