TheRadiolookofthehardX‑rayAGNseenbyINTEGRAL

Francesca Panessa

Loredana Bassani, Angela Bazzano, Paola Castangia, Elisabetta Maiorano, Angela Malizia, Paola Parma, Andrea Tarchi

ʺINTEGRALʹsjourneythroughthehighenergysky”

Rome 15‑18 October 2013

How do bright INTEGRAL AGN look like in the radio band?

Bright, large scales, lobes, jets?

Weak, sub-pc scale, unresolved or slightly resolved?

How is the hard X-ray emission related to the radio emission?

Complete sample between 20-40 keV (Malizia et al. 2009 MNRAS): 88 Seyfert galaxies: - 41 type 1 - 33 type 2 - 6 NLSy1 - 9 Blazars

HardX‐rayselectedINTEGRALAGNCompletesample

  Hard X-ray selected sample of luminous AGN: -> INTEGRAL 20-100 keV (Malizia et al 2009)

-> 2-10 keV X-ray data (Malizia et al. + literature) -> NVSS radio data (Panessa et al. in preparation)

VLA-VLBI data (literature, new observations)

Radioemissionintype1‑1.5Seyferts

Mrk6  Theradioemissionoccursonthreedifferentspatialscales:7.5kpcbubbles,1.5kpcbubbleslyingnearlyorthogonaltothem,anda1kpcradiojetlyingorthogonaltothekiloparsec‑scalebubble.

(Kharb+2006)

..some examples

VLBA image at 1.6 GHz of the central region of NGC 3783:   unresolved component   No extended extra-nuclear

emission

Orienti M , and Prieto M A MNRAS 2010

Radioemissionintype1‑1.5Seyferts ..some examples

Radioemissionintype1.8‑2Seyferts

VLBAemissionconsistentwithfree‑freeemissionfromthehotX‑raycorona

NGC1068 Gallimoreetal.2004

..some examples

Radioemissionintype1.8‑2Seyferts

MCG‑5‑23‑16

VLAimageat8.4GHz

 Thesourceisresolvedinthenorthdirection,suggestingthepresenceofajet‑likestructure.

Orienti M , and Prieto M A MNRAS 2010

..some examples

Radioemissionintype1.8‑2Seyferts Presenceofajet:

Nodata13lackofVLA/VLBIdata

Jet7cleardetectionofoneortwosidedlobeorjetcomponent

Nojet(?)13unresolvedradioemission(needdeeperinspection)

Radioemissionintype1‑1.5Seyferts Presenceofajet:

Nodata18lackofVLA/VLBIdata

Jet10cleardetectionofoneortwosidedlobesorjetcomponent

Nojet(?)13unresolvedradioemission(needdeeperinspection)

…summarizing

Wide range of morphologies, radio powers, spectral indices, etc.

  At 1.6 GHz 3 sub-mJy components:

  Two associated with the VLA small scale double structure

  Third is symmetric to the easternmost one

  H2O Maser coincident with core

Jet base? Mini radio-lobes? Thermal emission from an outflow/molecular disk/nuclear wind?

Giroletti & Panessa, 2009, ApJL

RadioemissioninNarrowLineSeyfert1

+

NGC 4051

Giroletti & Panessa, 2009, ApJL

RadioemissioninNarrowLineSeyfert1

theEVNandMERLIN6cmimageofthenuclearregionofNGC5506byMiddelbergetal.(2004)

Tarchi et al. 2011 D

EC

LIN

AT

ION

(J2000)

RIGHT ASCENSION (J2000)14 13 14.895 14.890 14.885 14.880 14.875 14.870 14.865 14.860

-03 12 27.3

27.4

27.5

27.6

27.7

27.8

27.9

VLAA‑arrayK‑bandcontinuumimageofthenuclearregionofNGC5506

NGC5506,wefindthatthewatermaseremissionislocatedwithin5and12pc,respectively,ofnuclearradiocontinuumknots,whichare

interpretedascore‑jetstructures

NGC 5506

NGC 4258

The discovery of a water mega-maser in IGR J16385-2057: - it is a NLSy1 (masers are tipically found in obscured AGN) - it resides in an elliptical galaxy (masers are rare in ellipticals)

 Watermaseremissiontracesadisk,ajetoroutflow

Tarchietal2011

RadioemissioninNarrowLineSeyfert1 ..an INTEGRAL discovered NLSy1: IGR J16385-2057

INTEGRALAGN22GHzwatermasersurvey

WatermaserdetectionrateintheINTEGRALsampleof17% (Castangiaetal.inpreparation)

HardX‐rayselectedINTEGRALAGNCompletesample

RadioLoudness

-> Log L R/LX = -4.5 (Terashima & Wilson 2003) -> Half of the sample is RADIO LOUD

ScalingRelaCons:LradioversusLX‐ray

*RLInagreementwiththeEFFICIENTBRANCHlawof1.4* 

FundamentalplaneforBHacCvity

-> Large scatter, INTEGRAL AGN sample the high Eddington accretion regime more radio with respect to that expected from the Fundamental Plane

VLBI < 0.1 pc

NVSS up to tens of kpc

VLA tens of pc up to kpc scales

VLA

VLBI

X‐rayversusRadiocorrelaConinLLAGN

ty 1 - flat sp

ty 2 - flat sp

ty 1 - steep sp

ty 2 - steep sp

ty 1 - flat sp

ty 2 - flat sp

ty 1 - steep sp

ty 2 - steep sp

NosignificantcorrelationatVLBIsub‑pcscales

Panessa&Girolehi2013MNRAS/arXiv:1304.0794

Resolvedradioemission

Excess of extended radio emission in more luminous AGN

ty 1 - flat sp

ty 2 - flat sp

ty 1 - steep sp

ty 2 - steep sp

Wide range of radio morphologies and properties High fraction (almost 50%) of RADIO LOUD AGN in a hard X-ray selected sample Strong Radio versus X-ray correlation both for RL and RQ AGN in the sample

New exciting results from:   water maser follow up   deeper radio observations

Conclusions