1. WORKSHOP JOSÉ LUIS SÉRSIC Instituto de Astronomía Teórica y Experimental, UNC, CONICET, Córdoba, 11 y 12 de Abril de 2013, Update of Physical Properties of Galaxies with Peculiar Nuclei 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).Schwarz (1979)Simkin et al. (1980)

19. 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 Karl Seyfert 1943ApJ....97...28S

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

21. IAUS262 – RJ, Brazil, 2009.21 Image from: AGN news Unified Model of AGN Assuming the unified model for AGNs (Antonucci & Miller, 1985)

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. Storchi-Bergmann et al ApJ *A model of elliptical ring around a 10 6 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 The Model that reproduce the observed profile variation

26. Animaton Black Hole eating a star

27. The dusty torus of the seyfert 2 NGC 1808 K [FeII] HI (Br  ) H2 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. R< 26 pcs PAHFIT decomposition of NGC1808 Mid-IR spectrum * Silicate, PAH bands and dust

32. IAUS262 – RJ, Brazil, 2009.32 Image from: AGN news Unified Model of AGN Assuming the unified model for AGNs (Antonucci & Miller, 1985)

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

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!