Effects of stellar surface inhomogeneities on astrometric accuracy
Surface brightness asymmetries are a very common feature of stars. Among other effects they cause a difference between the projected centre of mass and the photocentre. The evolution of those surface features makes this difference time-dependent. In some cases the displacement can be a non-negligibl...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Doctoral Thesis |
| Language: | fr |
| Published: |
Universite Libre de Bruxelles
2011
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209872 |