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      • WP1 – BH feedback at the epoch of the formation of the largest BHs
      • WP2 – BH feedback at the golden age of galaxy and BH evolution
      • WP3 – Local laboratories for ISM and BH wind/jet physics
      • WP4 – BH wind and Cosmological models
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    • Post-doc position on AGN science open in the BLACKOUT team at University of Firenze
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WP1 – BH feedback at the epoch of the formation of the largest BHs

WP1 is organised in two tasks.

Task1.1 Luminous quasars at z=3-4 [Lead: INAF, participants: UniFI, UniBo, RomaTRE]

The WISSH (WISE/SDSS hyper-luminous quasars) have log(Lbol/ergs/s)>47, accretion rates close to the Eddington one, and super-massive BH masses in the range 1E9–1E10 MSun. These huge luminosities drive powerful winds, which have been discovered by us in ionized gas on both nuclear scales (1-10pc [33]) and galaxy scales (0.1-10kpc [32]).

Task1.2 Luminous quasars at z>6 [Lead: UniFi, participants: INAF, UniBo, SNS]

Six z>6 quasars have been selected based on their bolometric luminosity.
For both the WISSH and the z>6 samples ionized, neutral and molecular gas in quasar host galaxies and in their GCM, will be studied using the data from the programs listed in the Figure.

These data will allow us to:
1) Study the quasar environment and search for merging signatures, such as galaxies close to the central quasar, double nuclei, etc. Compare with merging fractions and environment around obscured AGN, radio-loud AGN, and lower luminosity AGN (comparison samples).
2) Study the correlations between the properties of extended Ly -nebulae and the AGN properties. Compare the geometry and physical properties of Ly -nebulae to those of comparison samples.
3) Study the spatially resolved metallicity of the CGM gas using the HeII and CIV lines.
4) Probe the neutral and low ionization gas through the [CII] line, the molecular gas through the CO lines, and the SFR through the 200um continuum. Search for both low velocity (disk) and high velocity (wind) gas and assess their geometry.
5) Detect HI ionizing radiation in both the WISSH sample and in AGN 10-30 times less luminous using ultra-deep single slit spectroscopy.

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  • Science
    • Work Packages
      • WP1 – BH feedback at the epoch of the formation of the largest BHs
      • WP2 – BH feedback at the golden age of galaxy and BH evolution
      • WP3 – Local laboratories for ISM and BH wind/jet physics
      • WP4 – BH wind and Cosmological models
    • Data
    • Publications
    • Dissemination & Outreach
    • Communication kit
  • Our team
    • Reserved area
  • News
    • Post-doc position on AGN science open in the BLACKOUT team at University of Firenze
    • Post-doc position open in the BLACKOUT team
    • Uni Firenze hosts first BLACKOUT team meeting
  • Events
    • BLACKOUT KOM
    • BLACKOUT Team Meeting

© 2025