Observations and physics of NLS1 galaxies: AGN at their extreme

26 - 28 November 2025

Narrow-line Seyfert 1 (NLS1) galaxies are active galactic nuclei (AGN) with extreme multiwavelength properties and provide us with important insights into the drivers and physics of the central engine and evolution of AGN. Many of them are accreting close to the Eddington limit and represent a population of galaxies rapidly growing their central supermassive black holes (SMBHs). They therefore represent systems in the local Universe that may be the counterparts to the population of high-redshift SMBHs that is now increasingly revealed with JWST and with current and future ESO telescopes.

This invitation-only workshop will focus on the multiwavelength (X-ray, UV, optical, IR, radio, and gamma-ray) properties and interpretation of NLS1 galaxies, and their broader implications for AGN physics. The workshop will cover a great wealth of recent results and discoveries in a sequence of talks, and is meant to foster lively discussions and new collaborations among the international NLS1 community, including the future use of ESO telescopes.

The NLS1 workshop will be held at the ESO premises in Vitacura, Santiago, Chile, between November 26-28, is supported by ESO, and has no registration fee. 

E-mail: marco.berton@eso.org & skomossa@mpifr-bonn.mpg.de

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