Stationary observers on the symmetry axis of rotating supermassive black holes

@inproceedings{43209,
   author = {Petrásek, Martin and Hledík, Stanislav},
   address = {Opava},
   booktitle = {Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars},
   keywords = {Black hole, Kerr geometry, Kerr-de Sitter geometry, stationary observers},
   language = {eng},
   location = {Opava},
   isbn = {978-80-7248-419-5},
   pages = {189-192},
   publisher = {Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky},
   title = {Stationary observers on the symmetry axis of rotating supermassive black holes},
   year = {2007}
}

TY  - JOUR
ID  - 43209
AU  - Petrásek, Martin - Hledík, Stanislav
PY  - 2007
TI  - Stationary observers on the symmetry axis of rotating supermassive black holes
PB  - Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
CY  - Opava
SN  - 9788072484195
KW  - Black hole, Kerr geometry, Kerr-de Sitter geometry, stationary observers
N2  - Generalizing the results obtained by Semerák, O. (1993), Stationary Frames in the Kerr Field, Gen. Relativity Gravitation, 10(1045), an interesting difference between the Kerr and Kerr-de Sitter geometries has been found. In the case of freely falling stationary observers located on the axis of symmetry, rotating supermassive black holes (not necessarily fast rotating) behave differently from the same bodies for which the present value of cosmological constant is not included. An interesting family of "freely falling stationary observers" is described.
ER  - 

PETRÁSEK, Martin and Stanislav HLEDÍK. Stationary observers on the symmetry axis of rotating supermassive black holes. In \textit{Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars}. Opava: Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky, 2007, p.~189-192. ISBN~978-80-7248-419-5.