Professor Michael Zingale
Department of Physics and Astronomy
7:30 pm Room 001 ESS Building
Friday, May 7, 2010

Measuring Distances in the Universe.

An array of techniques are used to measure distances to stars and galaxies in astronomy. Measuring the distances to the nearest stars is relatively direct, relying on little more than geometry and careful observations of stellar positions on the night sky. The further away an object is, the less direct the measurement techniques become. Measuring the distances to the futhest objects know can involve many assuptions and uncertainties. In this talk I will describe some of the more popular techniques for measuring distances in astronomy and how techniques for distant objects rely on nearby measurements as stepping-stones.

Prof. Zingale is an Assistant Professor of Astronomy in Stony Brook's department of Physics and Astronomy. This is his fifth year at Stony Brook, coming most recently from a postdoctoral position at the University of California at Santa Cruz. His research is in modeling stellar explosions and the basic physics therein.