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Optical, Near-IR, and Sub-mm IFU Observations of the Nearby Dual Active Galactic Nuclei MRK 463

Treister, Ezequiel ; Privon, George C. ; Sartori, Lia F. ; Nagar, Neil ; Bauer, Franz E. ; Schawinski, Kevin ; Messias, Hugo ; Ricci, Claudio ; U, Vivian ; Casey, Caitlin ; Comerford, Julia M. ; Muller-Sanchez, Francisco ; Evans, Aaron S. ; Finlez, Carolina ; Koss, Michael ; Sanders, David B. ; Urry, C. Megan

The Astrophysical journal, 2018-02, Vol.854 (2), p.83 [Periódico revisado por pares]

Philadelphia: The American Astronomical Society

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Título:
Optical, Near-IR, and Sub-mm IFU Observations of the Nearby Dual Active Galactic Nuclei MRK 463
Autor: Treister, Ezequiel ; Privon, George C. ; Sartori, Lia F. ; Nagar, Neil ; Bauer, Franz E. ; Schawinski, Kevin ; Messias, Hugo ; Ricci, Claudio ; U, Vivian ; Casey, Caitlin ; Comerford, Julia M. ; Muller-Sanchez, Francisco ; Evans, Aaron S. ; Finlez, Carolina ; Koss, Michael ; Sanders, David B. ; Urry, C. Megan
Assuntos: Accretion ; Active galactic nuclei ; Astrophysics ; Clumps ; Deposition ; Emission ; Emission lines ; Energy budget ; Galaxies ; galaxies: active ; galaxies: individual (Mrk 463) ; galaxies: interactions ; galaxies: Seyfert ; Galaxy mergers & collisions ; Gas dynamics ; Luminosity ; Molecular gases ; Morphology ; Near infrared radiation ; Outflow ; Photoionization ; Star & galaxy formation ; Star formation ; Supermassive black holes ; Velocity gradient
É parte de: The Astrophysical journal, 2018-02, Vol.854 (2), p.83
Notas: Galaxies and Cosmology
AAS07002
Descrição: We present optical and near-IR Integral Field Unit (IFU) and ALMA band 6 observations of the nearby dual active galactic nuclei (AGNs) Mrk 463. At a distance of 210 Mpc, and a nuclear separation of ∼4 kpc, Mrk 463 is an excellent laboratory to study the gas dynamics, star formation processes and supermassive black hole (SMBH) accretion in a late-stage gas-rich major galaxy merger. The IFU observations reveal a complex morphology, including tidal tails, star-forming clumps, and emission-line regions. The optical data, which map the full extent of the merger, show evidence for a biconical outflow and material outflowing at >600 km s−1, both associated with the Mrk 463E nucleus, along with large-scale gradients likely related to the ongoing galaxy merger. We further find an emission-line region ∼11 kpc south of Mrk 463E that is consistent with photoionization by an AGN. Compared to the current AGN luminosity, the energy budget of the cloud implies a luminosity drop in Mrk 463E by a factor of 3-20 over the last 40,000 years. The ALMA observations of 12CO(2-1) and adjacent 1 mm continuum reveal the presence of ∼109 M☉ in molecular gas in the system. The molecular gas shows velocity gradients of ∼800 km s−1 and ∼400 km s−1 around the Mrk 463E and 463W nuclei, respectively. We conclude that, in this system, the infall of ∼100s M yr−1 of molecular gas is in rough balance with the removal of ionized gas by a biconical outflow being fueled by a relatively small, <0.01% of accretion onto each SMBH.
Editor: Philadelphia: The American Astronomical Society
Idioma: Inglês

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Optical, Near-IR, and Sub-mm IFU Observations of the Nearby Dual Active Galactic Nuclei MRK 463

Philadelphia: The American Astronomical Society

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