Igor Soszyński

1. Variable RGB and AGB stars in data Igor Soszyński University of Warsaw Astronomical Observatory 11 May 2009 The Giant Branches, Lorentz Center, Leiden

2. The OGLE Team • Andrzej Udalski • MarcinKubiak • MichałSzymański • GrzegorzPietrzyński • Igor Soszyński • ŁukaszWyrzykowski • Krzysztof Ulaczyk • Radosław Poleski

3. OGLE-I 1992-1995 • 1-m Swope Telescope at Las Campanas Observatory, Chile • ~70 observing nights per year • ~1.5 square degrees in the Galactic bulge • ~2 million stars regularly observed • ~20 GB/year

4. OGLE-I 1992-1995 • Catalog of Periodic Variable Stars (Udalski et al. 1994, 1995a,b, 1996, 1997) – 2861 • Variable Stars in Dwarf Galaxies: Sculptor, Sagittarius (Kałużny et al. 1995, Mateo et al. 1996) • Variable Stars in Globular Clusters: ω Cen, 47 Tuc (Kałużny et al. 1996, 1997, 1998) • Catalog of Long-Period and Non-Periodic Variable Stars (Żebruń 1998) – 116 • Catalog of Contact Binaries (Szymański et al. 2001) – 2084 • Catalog of Variable Stars (Pigulski et al. 2003) – 2016

5. OGLE-II 1997-2000 • 1.3-m Warsaw Telescope at Las Campanas Observatory, Chile • 11 sq. deg. in the Galactic bulge, 4.5 sq. deg. in the LMC, 2.6 sq. deg. in the SMC • ~40 million stars regularly observed • ~500 GB/year

6. OGLE-II 1997-2000

7. OGLE-II 1997-2000

8. OGLE-II 1997-2000 • LPVs in the Galactic bulge • Wray et al. (2004) “OGLE small-amplitude variables in the Galactic bar” • Woźniak et al. (2004) “Limits on I-Band Microvariability of the Galactic Bulge Mira Variables” • Matsunaga et al. (2005) “Mira variables in the Galactic bulge with OGLE-II data” • Groenewegen & Blommaert (2005) “Mira variables in the OGLE bulge fields”

9. OGLE-II 1997-2000 • LPVsinthe Magellanic Clouds • Kiss & Bedding (2003) “Red variables in the OGLE-II data base - I. Pulsations and period-luminosity relations below the tip of the red giant branch of the Large Magellanic Cloud” • Ita et al. (2004) “Variable stars in the Magellanic Clouds: results from OGLE and SIRIUS” • Kiss & Bedding (2004) “Red variables in the OGLE-II data base - II. Comparison of the Large and Small Magellanic Clouds” • Ita et al. (2004) “Variable stars in the Magellanic Clouds - II. The data and infrared properties” • Groenewegen (2004) “Long Period Variables in the Magellanic Clouds: OGLE + 2 MASS + DENIS” • Lah et al. (2005) “Red variables in the OGLE-II data base - III. Constraints on the three-dimensional structures of the Large and Small Magellanic Clouds”

10. OGLE-III 2001 – 2009 • observed area: 170 square degrees • number of stars: ~400 million • 236 000 frames • above 30 TB of raw data • 1.7∙1011 individualphotometricmeasurements

11. OGLE-II and OGLE-III fields in the SMC ASAS

12. OGLE-II and OGLE-III fields in the LMC ASAS

13. OGLE-III 2001 – 2009 Soszyński et al. (2004a) OGLE Small Amplitude Red Giants (OSARG)

14. OGLE-III 2001 – 2009 Soszyński et al. (2004b) Ellipsoidal and eclipsing red giants in the LMC

15. OGLE-III 2001 – 2009 Soszyński et al. (2005) Miras and Semiregular Variables in the LMC

16. OGLE-III 2001 – 2009 Soszyński (2007) Long Secondary Periods

17. OGLE-III 2001 – 2009 Soszyński et al. (2007) Period-Luminosity Relations of LPV

18. OGLE-III 2001 – 2009 Soszyński et al. (2007) Period-Luminosity Relations of LPV

19. The Largest Catalogs of Variable Stars • MACHO catalog of variable stars in Magellanic Cloud – 21 000 variables. • Canada-France-Hawaii Telescope catalogue of variable point sources in M33 galaxy – 36 000 variables. • ASAS-3 Catalog of Variable Stars – 50 000 variables. • General Catalogue of Variable Stars +New Catalog of Suspected Variable Stars + Extragalactic Variable Stars – 68 000 variables. • OGLE-II General Catalog of Variable Stars – 268 000 variables.

20. The OGLE-III Catalog of Variable Stars Principles: • Classificationof all objects • Identification with othercatalogs • Data in the electronic formonly+ a series of papers • Completeness • Open structure

21. WWW Interface of the OIII-CVSogle.astrouw.edu.pl

22. Search for periodicity • 32 million stars in the LMC, 6 million in the SMC. • 2 week of period search in the ICM UWand in the IBM Research Center, Germany PlayStation3 consoles HALO Cluster QS21 (prototype)

23. Period-Luminosity Diagramfor VariableStars in the LMC

24. Period-Luminosity Diagramfor VariableStars in the LMC Wesenheit index:

25. Classical Cepheids in the LMC single-mode double-mode triple-mode

26. Classical Cepheids in the LMC

27. Type II Cepheids in the LMC

28. Type II Cepheids in the LMC

29. Anomalous Cepheids in the LMC

30. Anomalous Cepheids in the LMC

31. RR Lyrae Stars in the LMC

32. Period-Luminosity Diagramfor Variable Stars in the LMC

33. Long Period Variables

34. Long Period Variables

35. Long Period Variables

36. Classical Cepheids Spatial distributionof variable stars in the LMC Miras and Semiregular Variables RR Lyrae stars

37. Long Secondary Periods

38. Irregular Variables

39. R Coronae Borealis stars

40. R Coronae Borealis star (?)

41. Long Secondary Period …of the Long Secondary Period

42. Long Period Variables

43. Extreme LPVs The shortest and the longest-period Miras: The shortest and the longest-period LSP: