Active galactic nucleus feedback in NGC 3982

Abstract

The energetic feedback from supermassive black holes can influence star formation at the centres of galaxies. Observational evidence for active galactic nucleus (AGN) impact on star formation can be searched for in galaxies by combining ultraviolet imaging and optical integral field unit data. The ultraviolet flux directly traces recent star formation, and the integral field unit data can reveal dust attenuation, gas ionisation mechanisms, and gas kinematics from the central regions of the galaxy disk. A pilot study on NGC 3982 shows star formation suppression in the central regions of the galaxy, likely due to negative AGN feedback, and enhanced star formation in the outer regions. The case of NGC 3982 could be observational evidence of AGN feedback operating in a Seyfert galaxy.

arXiv commentPublished in A&A, 7 pages, 8 figures, interactive online figure at https://prajwel.github.io/NGC3982/

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• AGN Feedback in SDSS-IV MaNGA: AGNs have Suppressed Central Star Formation Rates