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The Transient Sky

The Transient Sky

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The Transient Sky

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  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)

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

  6. Summary of physical motivation

  7. Motivation - LSST

  8. About LSST 8.4m mirror 6.5m effective diameter

  9. About LSST

  10. 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

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

  12. 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!

  13. 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”

  14. Individual transients

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

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

  17. M85 Optical Transient 2006-1

  18. M85 Optical Transient 2006-1

  19. M85 Optical Transient 2006-1

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

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

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

  23. SDSS-15207

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

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

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

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

  28. 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

  29. End