Matteo Guainazzi



Main Research Fields

My main research interests focus on high-energy observations of Active Galactic Nuclei (AGN). I have recently used X-ray observations of nearby AGNt galaxies to study: a) the ionization mechanism of the Narrow Line Regions; b) the location and dynamics of optically-thick gas and dust in the innermost ~pc around supermassive black holes. Exciting times are come for AGN science, with the unprecedented spectroscopic capabilities of the micro-calorimeters on board XRISM and Athena to become operational during the next decade. I am involved in the preparation of future missions as Project Scientist of the ESA contribution to XRISM, and Study Scientist for Athena and THESEUS.


  • Active Galactic Nuclei (Seyfert Galaxies)
    • AGN outflows and feedback
    • Narrow Line Regions
    • Radio Galaxies
  • General Relativity
  • Accretion disks

Ongoing collaborations

  • Czech Academy of Science (Jiri Svoboda)
  • IAPS/INAF (Alessandra de Rosa)
  • SAO (Aneta Siemiginowska, Malgosia Sobolewska)
  • Osservatorio Astronomico di Monte Porzio (Enrico Piconcelli)
  • University California San Diego (Sibasish Laha)
  • Universita' degli Studi "Roma Tre" (Stefano Bianchi, Giorgio Matt)
  • University of Puebla (Anna Lia Longinotti)


Publication list.

Project/mission at ESA

Athena, XRISM, Theseus.

Images from selected papers:

Suzaku (left panel) and NuSTAR (right panel) spectra of the nearby, X-ray obscured AGN Markarian 3 taken during a monitoring campaign in 2014-2015. Figures extracted from Guainazzi et al., 2016, MNRAS, 460, 1954.


Radial profile of column density (left panel) and ionization parameter (right panel) from the WAX sample (red data points) - the largest sample nearby AGN observed with the RGS on-board XMM-Newton. They are compared with a sample of Ultra-Fast Outflows (UFOs, Tombesi et al., 2010, A&A, 521, 57). Figure extracted from Laha, Guainazzi, et al., 2016, MNRAS, 457, 3986.