8–13 Sept 2019
Europe/Rome timezone
All inquiries about receipts for the payment of the conference fee and/or dinner should be addressed to: a.vriz@fondazionealmamater.it, d.bordignon@fondazionealmamater.it

Water maser emission in hard X-ray selected AGN

11 Sept 2019, 11:55
15m

Speaker

Francesca Panessa (Istituto Nazionale di Astrofisica (INAF))

Description

Water megamaser emission is powerful in tracing the inner region of active nuclei, mapping accretion disks and providing important clues on their absorption properties. From the broad band X-ray spectra of AGN it is possible to estimate the intrinsic power of the central engine and the obscuring column density. The synergy between X-ray and water maser studies allows to tackle the AGN inner physics from different perspectives. For a complete sample of AGN selected in the 20-40 keV energy range, we have investigated the presence of water maser emission and its connection to the X-ray emission, absorption and accretion rate. The hard X-ray selection of the sample results in a water maser detection rate much higher than that obtained from optically-selected samples, the nature of such evidence is here discussed.

Affiliation INAF IAPS
Topic Active Galactic Nuclei: accretion physics and evolution across cosmic time

Primary author

Francesca Panessa (Istituto Nazionale di Astrofisica (INAF))

Presentation materials