1. Experimental Astroparticle Physics @ Bonn Supernova 1994D Marek Kowalski Physikalisches Institut Universität Bonn Bonn, 27.5.2011

2. Main activity Cosmology with Type Ia Supernovae Neutrino astrophysics with IceCube and beyond

3. SNe Ia Hubble Diagram fainter

4. Supernova Factory Collaboration: Lawrence Berkeley National Lab Laboratorie de Physique Nucleaire et de Haute Energies de Paris Institut de Physique Nucleaire de Lyon Centre de Recherche Astronomy de Lyon Yale University Bonn University

5. SNfactory: producing unique nearby SNe data 1. Discover

6. SNfactory: producing unique nearby SNe data 1. Discover 2. Observe SNIFS: Custom spectrograph for nearby SN observations

7. SNfactory: producing unique nearby SNe data 1. Discover 2. Observe 3. Analyses SNIFS: Custom spectrograph for nearby SN observations

8. SuperNova Integral Field Spectrograph (SNIFS) Acquisition, Guiding Microlens array to two channel spectrograph 15x15 = 225 spectra Extinction monitoring, calibration Photometric Channel 6” x 6” FOV; 0.4”/spaxel 9.4’ x 9.4’ FOV; 0.14”/pix Pick-off Prism at SN loc Galaxy + Sky SN + Galaxy + Sky Sky Example for 3D spectroscopy

9. Required flux calibration for future Supernova cosmology <1%. obs. source inst. atmo.

10. External calibrating of spectral slope (i.e.color) of camera using a tunable laser & flux-calibrated photo diodes. SNIFS Parabolic mirror tunable Light source Calibrated Photo-Diode Primary Mirror Task: Build a 2.5 m parabolic mirror, light source & photo-diode system and move it to Hawaii

11. Constraints on Cosmology  Combination of SNe with: Baryon Acustic Oscillation data Cosmic Microwave Background data Future topics: Constraining sterile neutrinos with combination of cosmological and IceCube data MM Supernova Cosmology Project Amanullah et al. 2010

12. IceCube – a kilometer sized neutrino detector Since May 2011: IceCube is completed and taking data! Since May 2011: IceCube is completed and taking data!

13. IceCube IceCube Neutrino-Trigger day 0 day 1-10 network of optical telescopes optical SN/GRB detection Optical Neutrino Follow-up

14. Trigger 1000 Hz Level 1 30 Hz Neutrino- Level 0.002 Hz Neutrino- Multipletts 25 / yr IceCube-Datenverarbeitung Farm zur Rekonstruktion von IceCube-Ereignissen

15. ROTSE III 4 Teleskope (USA, Turkei, Australien, Nambia) Spiegeldurchmesser 0.45 m Median Reaktionszeit: 7 s FoV: 1.85  x 1.85  25 IceCube-Trigger/Jahr Neutrino-Nachbeobachtung mit ROTSE III

16. ROTSE III 4 Teleskope (USA, Turkei, Australien, Nambia) Spiegeldurchmesser 0.45 m Median Reaktionszeit: 7 s FoV: 1.85  x 1.85  25 IceCube-Trigger/Jahr 1.85 o IceCube 80% Error Circle Andromedar 26 Neutrino-Nachbeobachtung mit ROTSE III

17. GRBs SNe ? Are there GRB-like jets inside of core-collapse supernova? Optical follow-up of neutrino bursts Constraining SN Jets First year data: 13.12.2008 – 31.12.2009 Task: Extension towards X-ray search with SWIFT to detect neutrinos from Gamma-Ray Bursts

18. What else? Building a Megaton large neutrino detector for extraglactic Supernova detection!

19. SN 1987A @ 50 kpc distance Sanduleak -69 202

20. Detecting nearby supernovae Kistler et al. Generic neutrino prediciton (scaling from SN1987A) 10 Mton ⇒ ≥ 2 SNe/yr! 2 SNe per yr observed (optically) within 10 Mpc distance N ν ≥3 N ν ≥10

22. Where do you find us? IceCube-Villa Wegelerstr. 10, 1OG &

23. http://www.astroteilchen.uni-bonn.de/