Astrophysics in 2003

Accelerator Experiments for Astrophysics ∗

Many recent discoveries in astrophysics involve phenomena that are highly complex. Carefully designed experiments, together with sophisticated computer simulations , are required to gain insights into the underlying physics. We show that particle accelerators are unique tools in this area of research, by providing precision calibration data and by creating extreme experimental conditions releva...

Accelerator Experiments for Astrophysics ∗ Johnny

Many recent discoveries in astrophysics involve phenomena that are highly complex. Carefully designed experiments, together with sophisticated computer simulations , are required to gain insights into the underlying physics. We show that particle accelerators are unique tools in this area of research, by providing precision calibration data and by creating extreme experimental conditions releva...

High Performance Computing In Astrophysics: Parallel Gasdynamics And Gasoline

High Performance Computing is steadily increasing in importance for theoretical and observational astronomy. Largely through CFI, Canadian astrophysicists have unprecedented access to near world-class facilities. We review the contributions of computational astrophysics as a leading-edge player in the development of highly parallel applications and scalable algorithms with a particular focus on...

The Macho Project Large Magellanic Cloud Variable Star Inventory. Xiii. Fourier Parameters for the First Overtone Rr Lyrae Variables and the Lmc Distance

Shapes of RR Lyrae light curves can be described in terms of Fourier coefficients which past research has linked with physical characteristics such as luminosity, mass Department of Physics and Astronomy, University of Pennsylvania, PA 19104 Lawrence Livermore National Laboratory, Livermore, CA 94550 Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, Mailcode 5247, Ne...

Seismology of solar spicules based on Hinode/SOT observations

Cosmic Physics: the High Energy Frontier

Cosmic rays have been observed up to energies 10 times larger than those of the best particle accelerators. Studies of astrophysical particles (hadrons, neutrinos and photons) at their highest observed energies have implications for fundamental physics as well as astrophysics. Thus, the cosmic high energy frontier is the nexus to new particle physics. This overview discusses recent advances bei...