10–14 Nov 2025
Europe/Prague timezone

UV and X-ray variability of 1H 0323+342: an X-ray source in outburst as an interesting candidate for multi-band monitoring?

11 Nov 2025, 16:05
20m
Talk

Speaker

Valentina Rosa (Astronomical Institute of the Czech Academy of Sciences)

Description

I present ultraviolet, X-ray, and gamma-ray analyses of Swift and Fermi-LAT observations of the narrow-line Seyfert 1 galaxy 1H~0323+342, obtained between late September and mid-October 2025 (MJDs 60939.977–60961.620). The source underwent a recent outburst (ATel 17411), which prompted a multiwavelength investigation. The main goal of this work is to study its X-ray spectral evolution in connection with ultraviolet magnitudes and flux densities, gamma-ray emission, and variability amplitude, in order to explore the interplay between the accretion disk, corona, and relativistic jet. Furthermore, through ultraviolet extrapolation, I assess its suitability as a target for upcoming UV space missions, with particular emphasis on the Czech UV mission QUVIK.

Primary author

Valentina Rosa (Astronomical Institute of the Czech Academy of Sciences)

Co-author

Mr Vladimir Karas (Astronomický ústav AV ČR, v.v.i.)

Presentation materials

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