WORKSHOP JOSÉ LUIS SÉRSIC Instituto de Astronomía Teórica y Experimental, UNC, CONICET,

1. Update of Physical Properties of Galaxies with Peculiar Nuclei WORKSHOP JOSÉ LUIS SÉRSIC Instituto de Astronomía Teórica y Experimental, UNC, CONICET, Córdoba , 11 y 12 de Abril de 2013 , Miriani Griselda Pastoriza Departamento de Astronomia IF/UFRGS Porto Alegre, Brasil

2. Summary Part I - Galaxies with peculiar nuclei . Morgan’s work at Yerkes Observatory , University of Chicago - Galaxies with peculiar Nuclei . Sersic & Pastoriza’s works at Cordoba Observatory , UNC Part II - High resolution observations of SP galaxies ( scale < 1 “) show a complex nucleus: Starburst & Seyfert nucleus -The accretion disk of NGC1097 -The dusty torus of NGC 1808

5. Bosque Alegre Observatory , Cordoba, Argentina Observations: Newtonian focus of 60”inch telescope at Bosque Alegre . Instruments:Newtonian camera & nebular spectrograph

8. From 174 galaxies brighter than m=11.0 mag, a fraction of 14% of the sample shows peculiar nuclei, all of them are bar spirals .

9. Hα+[NII]

10. Radial velocity & emission lines

12. Photometric properties of the nuclei 500pc < Ring radius < 2 Kpc

13. The emisson regions are HII regions complex

16. Rings are formed by gas accumulation at Lindblad resonances, under the continuous action of gravity torques from the bar pattern. Buta & Combes 1996 http://ned.ipac.caltech.edu/level5/Rings/frames.html

17. Formation of Inner ring • Figure 75. Simulation of an inner ring from Schwarz (1979) and Simkin et al. (1980), showing the evolution from a spiral pseudoring (upper left) to a more closed ring pattern (lower right).

19. Karl Seyfert 1943ApJ....97...28S NGC5548 Stellar nucleus and broad HI y He emisson lines FWHM~ 8000km/sec Narrow emisson lines of ions [OIII], [SII], [NII] …, HI HeI FWHM~ 2000km/sec Clasificacion Seyfert 1 ….. 1, 8 Kachikian & Weedman 1970

20. The Seyfert 2 galaxy NGC 1068 (Antonucci & Miller 1985)

21. Unified Model of AGN Assuming the unified model for AGNs (Antonucci & Miller, 1985) IAUS262 – RJ, Brazil, 2009. 21 Image from: AGN news

22. ApJ 2011, 734:33

23. The accretion disk of NGC1097 ESO optical image Storchi-Bergmann, T., Baldwin, J. A., & Wilson, A. S. 1993, ApJ, 410, L11

24. Storchi-Bergmann, et al 1995, ApJ, 443, 617

25. The Model that reproduce the observed profile variation *A model of elliptical ring around a 106 solar mass nuclear black hole can reproduce the observed profile variations. *The line-emitting ring is the result of the tidal disruption of a star by the black hole Storchi-Bergmann et al ApJ

26. Animaton Black Hole eating a star

27. The dusty torus of the seyfert 2 NGC 1808 H2 K HI (Br) [FeII] Brγ traces young massive stars ( > 30 Doradus), while the [FeII] 1.64 µm line traces young supernova remnants Kotilainen, et al. A&A, 313, 771 (1996)

28. NGC1808 Xray and mid-IR emission in the central region of NGC1808 MidIR

29. Sales et al 2013 MNRAS 429

30. Model of the Mid-IR spectrum of dust disk

31. PAHFIT decomposition of NGC1808 Mid-IR spectrum *Silicate , PAH bands and dust R< 26 pcs

32. Unified Model of AGN Assuming the unified model for AGNs (Antonucci & Miller, 1985) IAUS262 – RJ, Brazil, 2009. 32 Image from: AGN news

33. Nenkova’s Dusty Torus models with clouds Nenkova et al , paper I e II Ap J 2008,2008

34. The dusty torus with clouds of NGC 1808

35. Grupo de Astronomia ExtragalaticaObservatorio de Cordoba, Argentina, 1969 Dottori Horacio, Aguero Estela, Sersic Jose Luis, Landi , Mc L , Carranza Gustavo, Pastoriza Miriani, Pizarro Mari. (1966) Horacio Dottori, Estela Aguero, Dr Jose Luis Sersic, Dr Landi, Lic Gustavo Carranza, Lic Miriani G. Pastoriza , Mary

36. Bosque Alegre, Cordoba , Argentina 1972 Entre los presentes: Anita Gomez, Horacio Dottori , Elena Terlevich, Arnal, Miriani Pastoriza, Gustavo Carranza, Roberto Terlevich

37. Swedish calculator FACIT

38. Text editor : Mari Pizarro & OLIVETTI M 40

39. Imaging processing : J. Albarracin

40. END!