Feeding and feedback in NGC 4151 from Gemini near infrared integral field spectroscopy

Ramiro D.Simões Lopes, Thaisa Storchi-Bergmann, Rogemar A. Riffel, Peter J. McGregor, Paul Martini

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We discuss two-dimensional mapping of the near-infrared emission-line intensity distributions and kinematics of the narrow-line region (NLR) of NGC4151, obtained with the Gemini Near-Infrared Integral Field Spectrograph, with a projected spatial resolution of ≈8 pc. The ionized gas intensity distribution follows the projected bi-cone morphology observed in previous optical narrow-band images, and its kinematics reveal outflows along the bi-cone. We propose a kinematic model in which the gas in the NLR moves at a velocity of ≈ 600 kms-1 up to ∼100 pc from the nucleus. A completely distinct morphology and kinematic structure is observed for the molecular gas, which avoids the region of the bi-cone and has velocities close to systemic, and is consistent with an origin in the galaxy plane. The molecular gas thus traces the AGN feeding, while the ionized gas traces its feedback.

    Original languageEnglish
    Title of host publicationMonster's Fiery Breath
    Subtitle of host publicationFeedback in Galaxies, Groups, and Clusters - Proceedings of the International Conference
    Pages123-126
    Number of pages4
    DOIs
    Publication statusPublished - 2009
    EventInternational Conference on Monster's Fiery Breath: Feedback in Galaxies, Groups, and Clusters - Madison, WI, United States
    Duration: 1 Jun 20095 Jun 2009

    Publication series

    NameAIP Conference Proceedings
    Volume1201
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Conference

    ConferenceInternational Conference on Monster's Fiery Breath: Feedback in Galaxies, Groups, and Clusters
    Country/TerritoryUnited States
    CityMadison, WI
    Period1/06/095/06/09

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