The jet-disk connection in AGN

Talk at the IAU Symposium 313 "Extragalactic Jets from every angles", held in Puerto Ayora (Galapagos Islands, Ecuador)

Transcript

1. The jet-disc connection in AGN Tullia Sbarrato IAUS313, September 15th 2014 in collaboration with P. Padovani (ESO) and G. Ghisellini (INAF-OAB) Sbarrato, Padovani & Ghisellini, 2014, MNRAS, accepted [arXiv:1405.4865]
2. Outline • jet & disc in AGN ➡ how to trace them? • studying the jet-disc connection with blazars • we need both blazars and radio-galaxies! • results IAUS313, September 15th 2014
3. Jet & accretion in AGN IAUS313, September 15th 2014 accretion structure vs. relativistic jet
4. broad line region luminosity: traces photo-ionizing luminosity from optical spectra Jet & accretion in AGN IAUS313, September 15th 2014 accretion structure vs. relativistic jet gamma-ray luminosity: traces jet power from gamma-ray telescopes
5. Jet in AGN blazars IAUS313, September 15th 2014
6. Jet in AGN blazars IAUS313, September 15th 2014
7. Accretion structures in AGN IAUS313, September 15th 2014 Mahadevan 1997 radiatively efficient Shakura-Sunyaev (1973) alpha-disc radiatively inefficient advection-dominated accretion flow (ADAF)
8. Accretion structures in AGN IAUS313, September 15th 2014 Mahadevan 1997 radiatively efficient Shakura-Sunyaev (1973) alpha-disc radiatively inefficient advection-dominated accretion flow (ADAF)
9. IAUS313, September 15th 2014 Sbarrato et al. 2014 The jet-disc connection in blazars
10. IAUS313, September 15th 2014 Sbarrato et al. 2014 The jet-disc connection in blazars
11. broad line region luminosity: traces photo-ionizing luminosity from optical spectra Jet & accretion in AGN IAUS313, September 15th 2014 accretion structure vs. relativistic jet
12. broad line region luminosity: traces photo-ionizing luminosity from optical spectra Jet & accretion in AGN IAUS313, September 15th 2014 accretion structure vs. relativistic jet radio luminosity: traces jet power in all jetted AGN! from radio surveys
13. The jet-disc connection in AGN IAUS313, September 15th 2014 Sbarrato et al. 2014
14. The jet-disc connection in AGN IAUS313, September 15th 2014 radio-galaxies must be beamed: spine-layer structure! Sbarrato et al. 2014
15. The jet-disc connection in AGN IAUS313, September 15th 2014 Sbarrato et al. 2014
16. The jet-disc connection in AGN IAUS313, September 15th 2014 Sbarrato et al. 2014
17. Conclusions • blazars do not allow studies on extremely wide accretion ranges: lack of low-accreting blazars • blazars and radio-galaxies together cover the transition between efficient and inefficient accretion regimes • ionizing luminosity in inefficient accretion regime decreases with a slope steeper than Maybe ? IAUS313, September 15th 2014