Evolution of the dual AGN in Mrk 266: a young AGN and a rotation-dominated disc in the SW nucleus

Simple item page
dc.contributor.authorRuby, Mason
dc.contributor.authorMuller-Sanchez, Francisco
dc.contributor.authorComerford, Julia M.
dc.contributor.authorStern, Daniel
dc.contributor.authorCales, Sabrina L.
dc.contributor.authorHarrison, Fiona
dc.contributor.authorMalkan, Matthew A.
dc.contributor.authorPrivon, George C.
dc.contributor.authorTreister, Ezequiel
dc.date.accessioned2025-01-20T16:04:32Z
dc.date.available2025-01-20T16:04:32Z
dc.date.issued2024
dc.description.abstractDual active galactic nuclei (AGNs) offer a unique opportunity to probe the relationship between supermassive black holes (SMBH) and their host galaxies as well as the role of major mergers in triggering AGN activity. The confirmed dual AGN Mrk 266 has been studied extensively with multiwavelength imaging. Now, high-spatial-resolution IFU spectroscopy of Mrk 266 provides an opportunity to probe the kinematics of both the merger event and AGN feedback. We present for the first time high-spatial-resolution kinematic maps for both nuclei of Mrk 266 obtained with the Keck OSIRIS IFU spectrograph, utilizing adaptive optics to achieve a resolution of 0.31 and 0.20arcsec for the NE and SW nuclei, respectively. Using the MBH-sigma & lowast; relation for mergers, we infer an SMBH mass of approximately 7x10(7)M(circle dot) for the south-western nucleus. Additionally, we report that the molecular gas kinematics of the south-western nucleus are dominated by rotation rather than large-scale chaotic motions. The south-west nucleus also contains both a circumnuclear ring of star formation from which an inflow of molecular gas is likely fuelling the AGN and a compact, AGN-dominated outflow of highly ionized gas with a time-scale of approximately 2 Myr, significantly shorter than the time-scale of the merger. The north-eastern nucleus, on the other hand, exhibits complex kinematics related to the merger, including molecular gas that appears to have decoupled from the rotation of the stars. Our results suggest that while the AGN activity in Mrk 266 was likely triggered during the merger, AGN feeding is currently the result of processes internal to each host galaxy, thus resulting in a strong asymmetry between the two nuclei.
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stae2320
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stae2320
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/89789
dc.identifier.wosidWOS:001347426300001
dc.issue.numero1
dc.language.isoen
dc.pagina.final780
dc.pagina.inicio763
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjectgalaxies: active
dc.subjectgalaxies: evolution
dc.subjectgalaxies: individual: MRK 266
dc.subjectgalaxies: kinematics and dynamics
dc.subjectgalaxies: nuclei
dc.titleEvolution of the dual AGN in Mrk 266: a young AGN and a rotation-dominated disc in the SW nucleus
dc.typeartículo
dc.volumen535
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas