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Kinematics of Molecular Gas in the Nucleus of NGC1068, from H2 line emission observed with VLT

D. Alloin·E. Galliano·J. G. Cuby·O. Marco·D. Rouan·Y. Clenet·G. L. Granato·A. Franceschini
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Abstract

We present results about the distribution and kinematics of the molecular environment of the AGN in NGC1068, over a 1.5'' x 3.5'' region around the central engine in NGC1068, derived from H2 line emission detected with ISAAC at VLT/ANTU on ESO/Paranal. The H2 emitting molecular gas is found to be distributed along the East-West direction and with two main peak emission (knots) located at a distance of about 70 pc from the central engine. The eastern H2 knot is more intense than the western one. The line profiles mapped across the entire 1.5'' x 3.5'' region, at a spatial resolution of 0.3'' x 0.45'', appear to be quite complex with either a blue or red wing. At first order, we find a velocity difference of 140 km/s between the two knots; if interpreted as quasi-keplerian velocity, this implies a central enclosed mass of 10^8 solar masses.

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D. Alloin, E. Galliano, J. G. Cuby, O. Marco, D. Rouan, Y. Clenet, G. L. Granato, A. Franceschini. 2001-02-23. Kinematics of Molecular Gas in the Nucleus of NGC1068, from H2 line emission observed with VLT. https://doi.org/10.1051/0004-6361%3A20010250

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