The Transient Sky

1. The Transient Sky Eran Ofek CALTECH Collaboratos: Shri Kulkarni Arne Rau Mansi Kasliwal Brian Cameron

2. Talk Layout Transients along the EM Further motivation – The future Ongoing searches Individual transients Ofek et al. (2006) GRB060505 Levinson, Ofek et al. (2002) Gal-Yam, Ofek et al. (2006) Radio transients Kulkarni, Ofek et al. (2006) Rau et al. (2006) Ofek et al. in prep M85 OT 2006-1 SDSS-SN15207 SN2006gy Ofek et al. (2006)

3. Transients along the EM Gamma rays Classical long-GRBs Low-energy long-GRBs Short GRBs Ofek et al. (2006) SGRs Ofek (2006); Ofek et al. (2006) Extragalactic SGRs

4. Transients along the EM Radio Searching for radio transients Levinson, Ofek et al. (2002) Gal-Yam, Ofek et al. (2006)

6. Motivation Pecuiler members of known families Test models Standard candles systematic New rare kind of transients

7. Summary of physical motivation

8. Motivation - LSST

9. About LSST 8.4m mirror 6.5m effective diameter

10. About LSST

11. LSST details 3 Gpixel camera Field of view = 9.65 sq. deg 6 filters: ugrizY 15s exposures, 2s readout, 5sec slow ~5000 sq. deg. per night First light: 2012, Cerro Pachon

12. LSST products 15 TB nightly 7 PB yearly Computing power is not available today…

13. LSST science products u 24.3 g 26.5 r 27.8 i 26.6 z 25.5 Y 24.7 Single image: ~24 mag Static sky Absolute: 50 mas Astrometry Relative: 10 mas ~1min transients alert Sky for everyone - No proprietary time!

14. Back to the present Ongoing searches Palomar 5m MPG 2.2m LCO 2.5m Nearby clusters Fornax, Perseus SDSS-II Palomar robotic 60” Follow up cadance improving Palomar 48” (10 sg. deg) Nearby galaxy survey Palomar robotic 60”

15. Individual transients

16. M85 Optical Transient 2006-1 Kulkarni, Ofek et al. (2006), Rau et al. in prep., Ofek et al. in prep

17. M85 Optical Transient 2006-1 Green to red color evolution 60 day platue Peak abs. mag R~-13 Expansion velocity ~300 km/s

18. M85 Optical Transient 2006-1

19. M85 Optical Transient 2006-1

20. M85 Optical Transient 2006-1

21. M85 Optical Transient 2006-1 Late time Spitzer observation

22. M85 Optical Transient 2006-1 Comparison with other types of transients

23. M85 Optical Transient 2006-1 Searching for his brothers

24. SDSS-15207

25. Ofek et al. (2006) SN 2006gy FWHM ~0.”1 Nucleus SN Dust lane

26. SN 2006gy Ofek et al. (2006)

27. SN 2006gy Ofek et al. (2006)

28. SN 2006gy Ofek et al. (2006)

29. Summary LSST era is almost here ~2012 First year – listening mode: Out of 6 targets: The “known”: 1 LBV(?), 2 Dwarf novae M85 OT 2006-1 The “known unknown”: SN 2006gy The “unknown unknown” SDSS-15207

30. End