QPO in RE J1034+396: model constraints from observed trends

Details QPO in RE J1034+396: model constraints from observed trends QPO in RE J1034+396: model constraints from observed trends

2012-02-09

arxiv.org/abs/1202.2087v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

to appear in the proceedings to "The Central Kiloparsec in Galactic Nuclei (AHAR2011)", Journal of Physics: Conference Series

Scientific paper

We analyze the time variability of the X-ray emission of RE J1034+396, an active galactic nucleus with the first firm detection of a quasi-periodic oscillations (QPO). Based on the results of a wavelet analysis, we find a drift in the QPO central frequency. The change inthe QPO frequency correlates with the change in the X-ray flux with a short time delay. Linear structures such as shocks, spiral waves, orvery distant flares seem to be a favored explanation for this particular QPO event.

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