Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806
It is commonly accepted that active galactic nuclei (AGNs) have a strong impact upon the evolution of their host galaxies, but the processes by which they do so are not fully understood. We aim to further the understanding of AGN feeding and feedback by examining an active galaxy using spatially res...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ada294 |
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| author | Sophie L. Robbins Sandra I. Raimundo Matthew A. Malkan |
| author_facet | Sophie L. Robbins Sandra I. Raimundo Matthew A. Malkan |
| author_sort | Sophie L. Robbins |
| collection | DOAJ |
| description | It is commonly accepted that active galactic nuclei (AGNs) have a strong impact upon the evolution of their host galaxies, but the processes by which they do so are not fully understood. We aim to further the understanding of AGN feeding and feedback by examining an active galaxy using spatially resolved spectroscopy. We analyze integral field spectroscopy of the active galaxy NGC 5806, obtained using the Very Large Telescope Multi-Unit Spectroscopic Explorer. We map the dynamics of gas and stars, as well as gas optical emission line fluxes throughout the central 8 × 8 kpc ^2 of the galaxy. We use emission line ratios to map gas metallicity and identify regions of gas excitation dominated by AGN/shocks or star formation. We also determine the average stellar population age and metallicity, and model the rotation and dynamics of the galaxy. We find that NGC 5806 has a star-forming circumnuclear ring, with a projected radius of ~400 pc. The dynamics of this galaxy are driven by a large-scale bar, which transports gas from the spiral arm to the central ring and potentially fuels the AGN. We also observe AGN-dominated gas excitation up to 3.3 kpc away from the center of the galaxy, showing the extended AGN effect on the gas in the central regions of the galaxy. |
| format | Article |
| id | doaj-art-dca64d1c9a134b3990cd0b5df9088341 |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-dca64d1c9a134b3990cd0b5df90883412025-02-04T13:22:00ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-0198016410.3847/1538-4357/ada294Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806Sophie L. Robbins0https://orcid.org/0000-0002-4735-8494Sandra I. Raimundo1https://orcid.org/0000-0002-6248-398XMatthew A. Malkan2https://orcid.org/0000-0001-6919-1237University of Maryland , Department of Astronomy, USA ; srobbin7@umd.edu; University of California Los Angeles , Department of Physics and Astronomy, USAPhysics and Astronomy, University of Southampton , UK; DARK, Niels Bohr Institute, University of Copenhagen , DenmarkUniversity of Maryland , Department of Astronomy, USA ; srobbin7@umd.eduIt is commonly accepted that active galactic nuclei (AGNs) have a strong impact upon the evolution of their host galaxies, but the processes by which they do so are not fully understood. We aim to further the understanding of AGN feeding and feedback by examining an active galaxy using spatially resolved spectroscopy. We analyze integral field spectroscopy of the active galaxy NGC 5806, obtained using the Very Large Telescope Multi-Unit Spectroscopic Explorer. We map the dynamics of gas and stars, as well as gas optical emission line fluxes throughout the central 8 × 8 kpc ^2 of the galaxy. We use emission line ratios to map gas metallicity and identify regions of gas excitation dominated by AGN/shocks or star formation. We also determine the average stellar population age and metallicity, and model the rotation and dynamics of the galaxy. We find that NGC 5806 has a star-forming circumnuclear ring, with a projected radius of ~400 pc. The dynamics of this galaxy are driven by a large-scale bar, which transports gas from the spiral arm to the central ring and potentially fuels the AGN. We also observe AGN-dominated gas excitation up to 3.3 kpc away from the center of the galaxy, showing the extended AGN effect on the gas in the central regions of the galaxy.https://doi.org/10.3847/1538-4357/ada294Active galactic nucleiActive galaxiesAGN host galaxiesGalaxiesSpiral galaxiesBarred spiral galaxies |
| spellingShingle | Sophie L. Robbins Sandra I. Raimundo Matthew A. Malkan Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806 The Astrophysical Journal Active galactic nuclei Active galaxies AGN host galaxies Galaxies Spiral galaxies Barred spiral galaxies |
| title | Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806 |
| title_full | Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806 |
| title_fullStr | Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806 |
| title_full_unstemmed | Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806 |
| title_short | Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806 |
| title_sort | mapping the active galactic nucleus effects on the stellar and gas properties of ngc 5806 |
| topic | Active galactic nuclei Active galaxies AGN host galaxies Galaxies Spiral galaxies Barred spiral galaxies |
| url | https://doi.org/10.3847/1538-4357/ada294 |
| work_keys_str_mv | AT sophielrobbins mappingtheactivegalacticnucleuseffectsonthestellarandgaspropertiesofngc5806 AT sandrairaimundo mappingtheactivegalacticnucleuseffectsonthestellarandgaspropertiesofngc5806 AT matthewamalkan mappingtheactivegalacticnucleuseffectsonthestellarandgaspropertiesofngc5806 |