Transcript The X-ray view of GPS radio galaxies

Radio Loud AGN in 2XMMi
Multi-wavelength view
A. Labiano (ESAC-ESA), M. Guainazzi (ESAC-ESA),
S. Bianchi (Rome-3), G. Miniutti (CAB-INTA)
CAIXA
• Catalogue of AGN in the XMM-Newton Archive
• Veron and XMM 2006/2007 catalogues
• Focused on QUIET, un-obscured, targeted AGN
observations - 156 sources
• 77 QSO, 79 Sy. z = 0.002 – 4.520. Most with z<0.1
• Hard, soft X-ray, Hb, 5GHz, BH mass
Bianchi et al. 2009a,b
Talk by Ponti
CAIXA - Loud
• Goal: Compare properties (and nature) of radioloud versus radio-quiet AGN
• X-corr: 2XMM-DR3, Veron (13th), 2010
catalogues.
• Matched ~5000 sources!
•
•
•
•
Veron gives 1.4, 5 GHz, B and V magnitudes.
X-rays: 0.2-10 kev
Radio data in Veron for ~400 out of the 5000
Included PKS, TXS, FIRST, NVSS, VLSS, GB6, PMN,
WENSS, SUMSS, GB6 – added 100 sources
Radio Loud and Quiet definition
• Log R = log f5GHz – log fB
• Log RX = log f5GHz – log f2-10KeV
• Loud: R > 2.4, Rx> -2.755
Panessa et al. 2007
LOUD
QUIET
Optical and radio have same origin (AGN)
Host contribution to optical small
Radio loud tend to be x-ray brighter than quiet
Optically bright, loud sources are x-ray brighter than optical bright, quiet sources
X-rays have higher contribution from??
QUIET
LOUD
Brightest in radio => brightest in X-ray –> x-ray from jets? Other mechanisms?
Why are we missing faint, loud AGN? Obscured? Sample? Sensitivity?
S=0
H=S
H=0
HR decreases with optical luminosity ->
Obscuring material covers optical and x-rays source
Nuclear (BLR, torus) or host-size obscuration?
Two vs. One Powerlaw fits
1 powerlaw
2 powerlaws
No evidence of soft excess
CAIXA: soft excess in 79% of sources
FeK line example
Less than 5% with non-zero flux, with uncertainties ~130%
CAIXA: Fe lines in 50% of sources
Spectral Index
Quiet -> 1.73 (CAIXA)
Type1 -> ~2 (Scott et al. 2011)
Summary
• 500 loud AGN with radio, optical and x-rays data.
• Where are the faint, loud AGN? Obscured? Sample?
Sensitivity?
• Small “contamination” from host.
• No evidence of soft excess.
• Radio loud are brighter in x-rays than radio quiet.
• So far, all results point to
an extra X-ray component in radio-loud AGN
Last Talk !!