@inproceedings{EatoughKramerKleinetal.2013, author = {R. P. Eatough and M. Kramer and B. Klein and R. Karuppusamy and D. J. Champion and P. C. C. Freire and N. Wex and K. Liu}, title = {Can we see pulsars around Sgr A⋆? The latest searches with the Effelsberg telescope}, series = {van Leeuwen (Ed.): Neutron Stars and Pulsars: Challenges and Opportunities after 80 years. Proceedings of the 291st Symposium of the International Astronomical Union, Beijing, China, 20-24 August 2012}, publisher = {Cambridge University Press}, isbn = {978-1-107-03380-1}, doi = {10.1017/S1743921312024209}, pages = {382 -- 384}, year = {2013}, abstract = {Radio pulsars in relativistic binary systems are unique tools to study the curved space-time around massive compact objects. The discovery of a pulsar closely orbiting the super-massive black hole at the centre of our Galaxy, Sgr A⋆, would provide a superb test-bed for gravitational physics. To date, the absence of any radio pulsar discoveries within a few arc minutes of Sgr A⋆ has been explained by one principal factor: extreme scattering of radio waves caused by inhomogeneities in the ionized component of the interstellar medium in the central 100 pc around Sgr A⋆. Scattering, which causes temporal broadening of pulses, can only be mitigated by observing at higher frequencies. Here we describe recent searches of the Galactic centre region performed at a frequency of 18.95 GHz with the Effelsberg radio telescope.}, language = {en} }