TY - GEN
T1 - Feeding and feedback in NGC 4151 from Gemini near infrared integral field spectroscopy
AU - Lopes, Ramiro D.Simões
AU - Storchi-Bergmann, Thaisa
AU - Riffel, Rogemar A.
AU - McGregor, Peter J.
AU - Martini, Paul
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
KW - Galaxies: ISM
KW - Galaxies: active
KW - Galaxies: individual: NGC4151
KW - Galaxies: kinematics
UR - http://www.scopus.com/inward/record.url?scp=77955325159&partnerID=8YFLogxK
U2 - 10.1063/1.3293014
DO - 10.1063/1.3293014
M3 - Conference contribution
SN - 9780735407381
T3 - AIP Conference Proceedings
SP - 123
EP - 126
BT - Monster's Fiery Breath
T2 - International Conference on Monster's Fiery Breath: Feedback in Galaxies, Groups, and Clusters
Y2 - 1 June 2009 through 5 June 2009
ER -