The eJWST active galactic nucleus observation catalogue

¹ Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut Mönchhofstr 12–14, 69120 Heidelberg, Germany
² European Space Agency (ESA), European Space Astronomy Centre (ESAC), Camino Bajo del Castillo s/n, 28692 Villanueva de la Cañada, Madrid, Spain
³ Telespazio UK S.L. for ESA, ESAC, Camino Bajo del Castillo s/n, 28692 Villanueva de la Cañada, Madrid, Spain
⁴ Institut de Radioastronomie Millimétrique (IRAM), 300 rue de la Piscine, 38400 Saint-Martin-d’Hères, France
⁵ Centro de Astrobiología (CAB), CSIC-INTA, Camino Bajo del Castillo s/n, 28692 Villanueva de la Cañada, Spain

^★ Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Received: 1 April 2024
Accepted: 30 November 2025

Abstract

Context. The European Archive of the James Webb Space Telescope (eJWST) provides access to all data collected by the James Webb Space Telescope (JWST). JWST’s capabilities span from studying early Universe galaxy formation to probing exoplanet atmospheres. Specifically, for active galactic nuclei (AGNs), JWST offers unparalleled opportunities, enabling investigation into AGN phenomena with unprecedented detail through high-resolution imaging, spectroscopy, and photometric data.

Aims. This study aims to compile and release a catalogue of all AGN observations conducted with JWST. Using eJWST, we systematically filtered and organized these observations to facilitate access and retrieval of all of JWST’s data products related to AGNs. Our goal is to provide the community with a valuable resource for their research.

Methods. We compiled the AGN observations in eJWST using specific keywords set by the principal investigators in their proposals, manually reviewing the approved programmes of JWST, as well as cross-matching all available observations with available AGN catalogues, such as the Million Quasar catalogue, the SDSS MaNGA AGN catalogue, the CDFS catalogue, and others.

Results. The resulting catalogue contains a total of 3242 individual AGNs included in JWST observations. This is one of the first extensive collections of AGN observations from the JWST. It includes detailed information about the targets (name, coordinates, and redshift) and specifics of the JWST observations (instrument, aperture, filter, etc.), and provides links for data downloads.