MidInfrared Interferometric Observations of AGNs Walter Jaffe (Leiden)

1. MidInfrared Interferometric Observations of AGNs Walter Jaffe (Leiden) Klaus Meisenheimer(MPIA) Konrad Tristram (MPIA) David Raban (Leiden) Huub Rottgering (Leiden)

2. MIDI Observations of AGNs Walter Jaffe: Leiden Observatory Klaus Meisenheimer:MPIA Heidelberg Konrad Tristram: MPIA David Raban: Leiden

6. MIDI Observations of AGNs Walter Jaffe: Leiden Observatory Klaus Meisenheimer:MPIA Heidelberg Konrad Tristram: MPIA David Raban: Leiden

7. N1068 ions NGC 1068

8. N1068 uv

9. N1068 dirty map

10. First data plots n1068

11. N1068 data_1

12. Pink ellipse

14. 12micron circles 1 comp

15. Gallimore low res radio

16. Gallimore high res radio

17. Gallimore 3

18. Gall2003 masers

19. Pink ellipse

21. v in m 80 U2-U4 Period 72, 04-02 (U3-U2) Period 73, 04-06 (U3-U2) Period 74, 05-02 (U3-U4) 60 Period 75, 05-05 (U2-U3) Period 77, 06-05 (U2-U3) 40 20 u in m 80 60 40 20 -20 -40 -60 -80 -20 -40 -60 -80 Circinus: MIDI observations • The Circinus UV coverage: 21 fringe tracks, 16 photometries

22. Circinus: total flux Circinus, total flux from all observations 20 15 Flux in Jy 10 5 0 8 9 10 11 12 13 Wavelength in µm

23. Circinus: correlated flux Circinus, observed: 2005-02-28 2.0 N PA= 44°, BL=49.4m PA= 54°, BL=51.1m PA= 57°, BL=51.7m 1.5 PA= 88°, BL=58.2m PA=120°, BL=62.0m PA=131°, BL=62.4m Flux in Jy 1.0 0.5 0.0 8 9 10 11 12 13 Wavelength in µm

24. Size: σ1 = 9 mas Ellipticity: ε1 = 0.61 Temperature: T1 = 400 K Filling actor: f1 = 1.0 Size: σ2 = 42 mas Ellipticity: ε2 = 0.03 Temperature: T2 = 300 K Filling factor: f2 = 0.5 Silicate depth: τSiO = 1.3 Position angle: α = 60° Circinus: modeling Two blackbody Gaussians: 200 0 DEC in mas -200 -200 0 200 11 µm RA in mas Log of model flux distribution at 11µm

25. Greenhill 2003: Water Masers

26. 75 50 25 75 50 25 -25 -50 -75 -25 -50 -75 Circinus: model result DEC in mas RA in mas 1.9 pc 0.4 pc

27. Fainter AGNs: Galaxy Type D R Detect? SiO Mpc pc • MCG-05-23-16 S2 40 3 X Maybe • MK 1239 S1 80 5 X No • NGC 3783 S1 40 3 X No • NGC 1365 S2 24 2 X No(?) • NGC 7469 S1 70 5 XNo(?) • Cen A RG 4 0.3 X Yes(?)

28. Calibrated Correlated Flux MCG-05-23 & Mrk 1239, observed: 2005-12-18 1.0 ozone PA=23, PB=64.1m (MCG-05-23) PA=36, PB=41.2m (Mrk1239) PA=42, PB=44.9m (Mrk1239) 0.8 0.6 Flux in Jy 0.4 0.2 0.0 8 9 10 11 12 13 Wavelength λ in µm

29. Calibrated Visibility MCG-05-23 & Mrk 1239, observed: 2005-12-18 2.0 ozone 1.5 Visibility 1.0 0.5 PA=23, PB=64.1m (MCG-05-23) PA=36, PB=41.2m (Mrk1239) PA=42, PB=44.9m (Mrk1239) 0.0 8 9 10 11 12 13 Wavelength λ in µm

33. Granato plots

34. Cen A = NGC 5128

35. The core spectrum of Centaurus A Total flux

36. *V1(λ) The core spectrum of Centaurus A Correlated flux of core

37. Synchrotron core: n(E) ~ E-1.72 RC = 1.5 x 1014m = 1000 AU B = 0.3 G Psyn = 7 x 1034 W acc = 2.4 days ~ τvar The core spectrum of Centaurus A

38. MIDI - VLTI observations of Centaurus A Basic result: • Unresolved core: 80 ... 60% of 8 ... 13 µm flux • “Dust disk“: d ~ 0.6 pc, b:a = 1:3 (i = 66° ?), T = 240 K Pdust = 3x1034 W Pheat > 1035 W but: PUV ~ 3x1034 W = 0.00004 PEdd

39. conclusions Points of Interest: NGC1068: hot dust coincides with H20 masers+free-free emission Warped disk; silicate absorption Circinus: less hot dust; (less) warped disk; SiO4 abs Others: little hot dust; optically thin(?); no SiO4 abs

40. conclusions Critical Issues: Warping/Asymmetries Optical Thickness in different sources Hot dust