Refine
H-BRS Bibliography
- yes (3)
Departments, institutes and facilities
Document Type
- Conference Object (2)
- Article (1)
Language
- English (3)
Has Fulltext
- no (3)
Keywords
- Galaxy: centre (1)
- Pulsars (1)
- Sgr A⋆ (1)
- black holes (1)
- pulsars: general (1)
- stars: magnetars (1)
Multi-epoch searches for relativistic binary pulsars and fast transients in the Galactic Centre
(2021)
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.