Revealing the accretion disc corona in Mrk 335 with multi-epoch X-ray spectroscopy

Understand

Active galactic nuclei host an accretion disc with an X-ray producing corona around a supermassive black hole.

• In bright sources, such as the Seyfert 1 galaxy Mrk 335, reflection of the coronal emission off the accretion disc has been observed.
• Reflection produces spectral features such as an iron emission line, which allow for properties of the inner accretion disc and the corona to be constrained.
• We perform a multi-epoch spectral analysis of all XMM-Newton, Suzaku, and NuSTAR observations of Mrk 335, and we optimize our fitting procedure to unveil correlations between the Eddington ratio and the spectral parameters.