Tidal disruption event in NGC 4845
Abstract
In January 2011, INTEGRAL discovered a hard X-ray flare (IGR J12580+0134) in the centre of NGC 4845, a Seyfert 2 galaxy never detected at high-energy previously. The flare was seen around 6 months and it was also observed by XMM-Newton, Swift satellites and MAXI detector onboard ISS. Analysis of light-curve of the source points out the tidal disruption event by supermassive black hole (BH) of an object with a mass of 14-30 Jupiter. It could be a giant planet or a brown dwarf. The hot corona has been observed. The variable flux may suggest appearing of an quasi-periodic oscillation (QPO).
- Publication:
-
XXXVI Polish Astronomical Society Meeting
- Pub Date:
- December 2014
- Bibcode:
- 2014pas..conf..151N