1. How Stars Form Shantanu Basu Physics & Astronomy University of Western Ontario Preview Western, May 3/4, 2003

2. Understanding our Origins

3. The Galaxy

4. Molecular Clouds Disorderly Complex Nonlinear Giant Molecular Cloud in Orion Infrared view From IRAS satellite

5. Magnetic Fields and Polarimetry

6. Courtesy A. Goodman Taurus Cloud Complex (up to ~ 30 light years across)

7. Magnetic Fields in Astrophysics EarthBar magnet Magnetic Fields near Solar surface

8. Outflows MHD Waves Thermal Motions MHD Turbulence Inward Motions SNe H II Regions Scenario for a Molecular Cloud

9. Canada-France-Hawaii Telescope (CFHT) Mauna Kea, Hawaii Optical and near-infrared Tools of the Trade Observational Astronomy

10. Tools of the Trade James Clerk Maxwell Telescope (JCMT) Mauna Kea, Hawaii British-Canadian-Dutch collaboration Short-wavelength radio (submillimeter) waves Observational Astronomy

11. Tools of the Trade Hubble Space Telescope Optical and near-infrared Resolution not limited by atmospheric turbulence Observational Astronomy

12. 21 st Century Telescopes Gemini 8mALMA 64 x 12mNGST 8m

13. Star Formation at High Resolution Motte et al. (1998) HH47 jet seen by HST Young stellar object and disk - HST At highest resolution, see disks and jets(!) near forming stars. Local collapse of dense cores within larger clouds.

14. Molecular or Dark Clouds "Cores" and Outflows Stages of Star Formation Jets and Disks Extrasolar System ~few light years

15. Tools of the Trade High-performance computers Parallel computing Theoretical Astrophysics New organization: SHARCNET (Shared Hierarchichal Computing Network) – a consortium of Western, Guelph, and McMaster plus other regional institutions. Mission: Enable forefront computational research in science, engineering, and business. www.sharcnet.ca

16. Numerical Simulation Takahiro Kudoh (UWO) Collaborators: R. Matsumoto, K. Shibata Star + rotating disk + magnetic field (white lines)

17. Numerical Simulation 3-D view Takahiro Kudoh (UWO) Collaborators: R. Matsumoto, K. Shibata Cross- section of disk Magnetic field lines: inner lines (pink) and outer lines (white)