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arxiv: 1202.2087 · v1 · submitted 2012-02-09 · 🌌 astro-ph.CO · astro-ph.HE

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

B. Czerny , P. Lachowicz , M. Dovciak , V. Karas , T. Pechacek , Tapas K. Das
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classification 🌌 astro-ph.CO astro-ph.HE
keywords changefrequencyj1034timex-rayactiveanalysisanalyze
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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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