Catching Blazars in their ordinary life INTEGRAL Blazars Catching Blazars in their ordinary life De Rosa, S. Gianni’, L. Bassani, P. Ubertini On behalf of the INTEGRAL AGN survey team

A. De Rosa - 7th AGILE workshop 29 Sept 2009 Outline Hard X-rays selected Blazars: ordinary vs out of ordinary life Blazars in the INTEGRAL survey Characterizing the X-ray spectra: broadband study Absorption properties in RL QSOs Finding peculiar objects: blue FSRQs/bulk Compton emission X vs Gamma-rays properties: population study with INTEGRAL, AGILE & Fermi The future and work in progress A. De Rosa - 7th AGILE workshop 29 Sept 2009

Observing blazars in hard-X rays with a photon field (SSC/EC) Giommi 07 Blazars are extremely variable - rare objects (<5% all AGNs) that can be detected in hard-X (>10 keV) through large area surveys: Because of the rarity and low space density of blazars, "pencil beam" surveys (..) are poorly suited for finding blazars.. (Perlman 1998). Two different ways Long monitoring: average flux states ToO pointed observation: flaring activity A. De Rosa - 7th AGILE workshop 29 Sept 2009

Out of ordinary vs ordinary life 300 rev - 1000 days Lucky detection Unlucky detection Pian et al. 2006 Lucky ToO Vercellone et al 2009 Unlucky ToO.. 3c454.3 A. De Rosa - 7th AGILE workshop 29 Sept 2009

The sample source F20-40KeV F40-100keV z type 1ES 0033+59.5 1.3 0.9 0.086 HBL RX J0137.7+5814 0.4 <0.4 SWIFT j0218.0+7348 1.2 1.9 2.367 BLlac IGR J03532-6820 1.3 <0.8 BLLac QSO B0836+710 2.4 4.2 2.172 FSRQ MKN 421 25.6 19.4 0.03 HBL 4C 04.42 0.8 1.8 0.965 FSRQ 3C 273 10.4 12.3 0.158 FSRQ 3C 279 1.1 1.4 0.5362 FSRQ H 1426+428 1.0 1.1 0.129 HBL MKN 501 3.1 2.1 0.03366 HBL SWIFT 1656.3-3302 1.4 2.1 2.40 FSRQ PKS J1830-211 2.4 3.2 2.705 FSRQ 1RXS J192450.8-291437 0.9 0.8 0.352 FSRQ QSO B1933-400 0.5 1.0 0.965 FSRQ? PKS 2149-306 1.2 1.7 2.345 FSRQ Bl Lac 1.3 1.5 0.0686 BLLac IGR J22517+2218 1.3 2.3 3.668 FSRQ 3C 454.3 9.4 12.8 0.859 FSRQ

Characterising the X-ray spectra 2-10 keV observations with XMM, Chandra, XRT We built a broadband spectrum 0.1-200 keV for 9 sources (more are coming) Main Results Flattening wrt a power-law in the soft X-rays range : If due tointrinsic absorption -> Nh vs redshift evolution Finding peculiar sources: blue quasar candidate IGR J22517+2218 - possible bulk Compton motion in 4C 04.42 A. De Rosa - 7th AGILE workshop 29 Sept 2009

Characterising the X-ray spectra Evidence of flattening below 2 keV (rest frame) has been found in several high-z QSO up to z=4.4 (Yuan et al. 2006) Intrinsic curvature - absorption (cold/warm) Clear trend NH vs z has been measured Excess of emission has be found in very few cases (Sambruna et al. 2006, Kataoka et al. 2007, De Rosa et al. 2008) A. De Rosa - 7th AGILE workshop 29 Sept 2009

Characterising the X-ray spectra: absorption Page et al. 05 Ratio data/continuum power-law fit to the energy band above 2 keV (observer frame) extrapolated over the low energy range Statistical warning!! A. De Rosa - 7th AGILE workshop 29 Sept 2009

Characterising the X-ray spectra: bulk Compton emission in 4C 04.42? De Rosa et al. 2008 Kataoka et al. 2007 PRELIMINARY! Energy Budget BC= 2BLR/(1+z) ˜ 1 keV LBC=4/3 c4UBLR2Ncold ˜ 1046 Ncold/Nrel, LBC˜1045 erg/s => Ncold/Nrel ˜ 0.1 AGILE 10 days Fermi 1 month Multifrequency program: INTEGRAL & AGILE (quick look courtesy of L. Pacciani)+ public Fermi A. De Rosa - 7th AGILE workshop 29 Sept 2009

Characterising the X-ray spectra Finding peculiar objects Blazars spectral sequence (Fossati et. al 1998)? FSRQs red blazars BL Lacs blue blazars The peaks of the Synch & IC comp. Shifting systematically to higher frequencies with decreasing luminosity. Red (high luminosity) and blue (low luminosity) blazars. Strong prediction: NO blue powerful blazar… Synch peak? Bassani et al. 2007 Giommi et al. 2007 A reanalysis shows that the the EC component in the SED bis well reproduced by the X-rays data.These objects are two red high luminosity blazars, in agreement with the spectral sequence Maraschi et al. 2008 ROXA J081009.9+384757.0 z = 3.95 A blue powerful blazar? IGR J22517+2218, z=3.668 a gamma-ray lighthouse: a high energy peaked FSRQs? A. De Rosa - 7th AGILE workshop 29 Sept 2009

X and Gamma-rays population INTEGRAL IBIS Fermi LBAS AGILE GRID total 723 132 47 BLLac 7 (37%) 58 (56%) 4 (31%) FSRQ 12 (63%) 42 (40%) 7 (54%) unknown 21(AGNs?) 4 2

X and Gamma-rays population I. photon index distribution: IBIS & LBAS BAT 15-55 keV FSRQs BLlacs Ajello et al. 09 Abdo et al. 09

X and Gamma-rays population I. photon index distribution BLLacs Following the spectral sequence, gamma and X-ray spectral ranges match different emission processes in blue and red blazars FSRQs A. De Rosa - 7th AGILE workshop 29 Sept 2009

X and Gamma-rays population II. Luminosity vs redshift BLLacs FSRQs Abdo et al. 09 F(20-100 keV)=1.2e-11 cgs (0.8 mCrab), Crab like spectrum Texp=2Ms A. De Rosa - 7th AGILE workshop 29 Sept 2009

The future and work in progress Deep extragalactic fields will be observed in the 7th INTEGRAL AO. New sources X-rays coverage: XMM large programme for INTEGRAL (hard-X rays selected) AGNs is actually on going, and we hope so for the near future.. AO9..? Simultaneous observations: Gamma-rays & TeV energy ranges Define a complete sample of hard X-rays selected blazars Populations study: are FSRQs and BLLacs two separate classes? Implication on CXRB in hard X-rays and MeV energy range A. De Rosa - 7th AGILE workshop 29 Sept 2009

Everything unexpected… Thanks for your attention A. De Rosa - 7th AGILE workshop 29 Sept 2009