Poster(s)
Radio quieti …
+
SKA
Photos : Marcella Brusa
26 Maggio, 2010
AGN9 - FERRARA
High ionization winds in the Broad Line Region of QSO
Marziani et al.
Blue shift
asymmetric
profiles
in high L/Le
sources
26 Maggio, 2010
AGN9 - FERRARA
SDSS (555…) : a candidate massive BH Binary
Montuori et al.
Two set of lines
shift of 2650 lm/s
26 Maggio, 2010
Monica Colpi talk
AGN9 - FERRARA
Close by Quasars Pairs
Farina et al.
7 QSO physical pairs
50 - 500 kpc
M dyn ~ 8 x 1012
Mhost ~ 1.4 x 1012
26 Maggio, 2010
AGN9 - FERRARA
The environment of radio AGN and the quest for feedback
Bardelli & zCOSMOS+VLACOSMOS
AGN is a galaxy with a
flux in excess to that
predicted by its SF
Two type of AGN
red and dead
blue and alive
26 Maggio, 2010
AGN9 - FERRARA
A study of the X-ray to UV ratio of AGN with
simultaneous measurements from XMM
Antonucci et al.
Simultaneous data
do not reduce scatter
in the relation(s)
26 Maggio, 2010
AGN9 - FERRARA
On the nature of red galaxies : the Chandra perspective
Campisi et al.
X-ray detected
EROs (R-K > 5) z ~ 1
High fx/fopt
Obscured AGN
10% of the X-ray
population
5% of the EROs sample
26 Maggio, 2010
AGN9 - FERRARA
Analysis of a LSS at z ~ 0.3 with the Chandra Observatory
Cazzoli et al.
Source counts
logN-logS
In between two
Clusters of galaxies
Small but significant
Excess
Need spectroscpy to
Associate X-ray sources
To the LSS
26 Maggio, 2010
AGN9 - FERRARA
The soft X-ray emission of Seyfert 2 galaxies
Tamborra et al.
Soft X-ray emission
As a blend of emission
Lines
Unresolved with CCD
Resolution
Photoionization from
Nuclear continuum
Small contribution
From collisional
Excitation
26 Maggio, 2010
AGN9 - FERRARA
Iron Line in the integrated spectra of high-z AGN
Brusa et al.
Rest frame
Stacking in Chandra deep
Fields (1 Ms CDFS + 2 Ms
CDFN
Line is there
No evidence of broadening
…
In progress
26 Maggio, 2010
AGN9 - FERRARA
[OIII] EW and orientation effects in quasars
Risaliti et al.
[OIII] EW as a measure of
Accretion disk inclination
From 6000 SDSS QSO
The distribution is consistent with
A random orientation
Prove of disk like structure
Of ionizing radiation
26 Maggio, 2010
AGN9 - FERRARA
Bolometric Luminosity of Type 2 AGN
Pozzi et al.
16 HELLAS2XMM Type 2 QSO + Spitzer coverage
Nuclear luminosity from torus SED fitting + MBH from scaling relations
Low Eddington ratio sources
Kbol correlates with Eddington ratio
26 Maggio, 2010
AGN9 - FERRARA
Dust Distribution in AGN SMOOTH vs CLUMPY
Feltre et al.
SED of clumpy
And smooth
models
Present similar
properties
Good fits to IRS
Spectra
26 Maggio, 2010
AGN9 - FERRARA
Feedback in action in a z ~ 1.6 obscured QSO
Brusa et al.
Keck/DEIMOS spectrum: red, early
type continuum plus strong
AGNemission lines ([NeV] doublet)
and SF features (OII, SFR ~ 103
M_sun /yr)Evidence of outflowing
material (~300 km/s) from the
blueshiled MgIand MgII complex
absorpOon.
Caught in the act
26 Maggio, 2010
AGN9 - FERRARA
Newly discovered Compton Thick AGN in the local Universe
Severgnini et al.
X-ray + IR selection
X-hard /Mid IR
Vs
HR4 (5-12/2-5)
Candidate CT
26 Maggio, 2010
AGN9 - FERRARA
Compton Thick quasars in the SDSS
Vignali et al.
CT QSO are selected from
[OIII] luminosity and
Comparison with X-ray
Luminosity or UL
Weak or absent in X
Candidate CT
Space densities
26 Maggio, 2010
AGN9 - FERRARA
Discovering heavily obscured AGN in COSMOS via [NeV]
detection
Mignoli et al.
[NeV] in ~10 k spectra visually inspected
Need hard ionizing cont. -- low NeV/X ratio observed
In NL - Gilli (2010) plot candidate CT
26 Maggio, 2010
AGN9 - FERRARA
Square Kilometer Array (SKA)
Giovannini
Factor 50 improvement in collecting area
26 Maggio, 2010
AGN9 - FERRARA