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  Establishing the impact of powerful AGN on their host galaxies

Harrison, C. M., Molyneux, S. J., Scholtz, J., & Jarvis, M. E. (2021). Establishing the impact of powerful AGN on their host galaxies. Cambridge, UK: Cambridge University Press. doi:10.1017/S1743921320001696.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0008-C36F-0 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0008-C370-D
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Establishing the impact of powerful AGN on their host galaxies.pdf (beliebiger Volltext), 802KB
 
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 Urheber:
Harrison, C. M., Autor
Molyneux, S. J., Autor
Scholtz, J., Autor
Jarvis, M. E.1, Autor           
Affiliations:
1Galaxy Formation, MPI for Astrophysics, Max Planck Society, ou_2205643              

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 Zusammenfassung: Establishing the role of active galactic nuclei (AGN) during the formation of galaxies remains one of the greatest challenges of galaxy formation theory. Towards addressing this, we summarise our recent work investigating: (1) the physical drivers of ionised outflows and (2) observational signatures of the impact by jets/outflows on star formation and molecular gas content in AGN host galaxies. We confirm a connection between radio emission and extreme ionised gas kinematics in AGN hosts. Emission-line selected AGN are significantly more likely to exhibit ionised outflows (as traced by the [O iii] emission line) if the projected linear extent of the radio emission is confined within the spectroscopic aperture. Follow-up high resolution radio observations and integral field spectroscopy of 10 luminous Type 2 AGN reveal moderate power, young (or frustrated) jets interacting with the interstellar medium. We find that these sources live in highly star forming and gas rich galaxies. Additionally, by combining ALMA-derived dust maps with integral field spectroscopy for eight host galaxies of z ≈ 2 X-ray AGN, we show that Hα emission is an unreliable tracer of star formation. For the five targets with ionised outflows we find no dramatic in-situ shut down of the star formation. Across both of these studies we find that if these AGN do have a negative impact upon their host galaxies, it must be happening on small (unresolved) spatial scales and/or an observable galaxy-wide impact has yet to occur.

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Sprache(n): eng - English
 Datum: 2021-03-29
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: Cambridge, UK : Cambridge University Press
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: Anderer: LOCALID: Reihe: IAU...359
DOI: 10.1017/S1743921320001696
 Art des Abschluß: -

Veranstaltung

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Titel: 356nd Symposium of the International Astronomical Union: Galaxy Evolution and Feedback Across Different Environments
Veranstaltungsort: Bento Gonçalves, Brazil
Start-/Enddatum: 2020-03-02 - 2020-03-06

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Titel: Proceedings of the International Astronomical Union
Genre der Quelle: Reihe
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Affiliations:
Ort, Verlag, Ausgabe: Cambridge, UK : Cambridge University Press
Seiten: - Band / Heft: 15/s359 Artikelnummer: - Start- / Endseite: 203 - 211 Identifikator: ISSN: 1743-9213