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PI Total time #CoIs, team

The Origin and Evolution of the M BH -  Relation Study the link between the growth of SMBH and that of the Dark Matter haloes by measuring the central stellar velocity dispersion and BH masses of a sample of 30 type 2 AGN from z=1 to 5. PI Total time #CoIs, team. Jo ë l Vernet

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PI Total time #CoIs, team

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  1. The Origin and Evolution of the MBH- Relation Study the link between the growth of SMBH and that of the Dark Matter haloes by measuring the central stellar velocity dispersion and BH masses of a sample of 30 type 2 AGN from z=1 to 5. PI Total time #CoIs, team Joël Vernet 8n (ELT 42m) over 2 periods (1yr) ~10 Co-Is NIR spectroscopy (& polarimetry?) Velocity dispersion measurement Coupled with X-ray observations

  2. Scientific Rationale Ferrarese & Merritt 2000 • The MBH-Stellar central velocity dispersion(*) relation • A fundamental link between dark matter halo and central supermassive black hole • Origin still mysterious • How far in time does it hold? MBH * [km/s]

  3. Scientific rationale Goal: measure the M- * relation from z=1 to 5 with a sample of 10 galaxies per unit redshift • Need to observe active galaxies (quiescent only at low z) to see manifestation of the BH • …but need to see the stellar continuum to measure *  Type 2 AGN (AGN cont. outshines the stellar cont. in type1 AGN)

  4. Immediate Objective • Sample: 30 powerful radio galaxies or other RQ type2 AGN • Measure stellar velocity dispersion using absorption lines at ~4000A (CaH,K etc…) we need: • Resolve * ~ 200 km/s  R~1500 but avoid OH lines higher  R • S/N > 15 / resolution element • Either black hole masses form X-ray luminosities • … or better from Hb line width and continuum luminosity if we have a spectro-polarimetric option

  5. ELT Justification: Would be ok to z~3 with 30m Legacy Value: enormous value to study the proto-cluster environment. Need multiplex a few tens in 5’ FOV. High precision emission line kinematics (IFU). Data Reduction: Quality of sky subtraction critical. More challenging if polarimetric option

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