This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: common center of mass The Sun actually appears to wobble from its orbit around the systems common center. Doppler Spectroscopy (or radial velocity): detects the periodic velocity shift of the stellar spectrum caused by an orbiting planet. Most successful current method From ground-based observatories we can measure about 3 m/s of Doppler shift This works out to a minimum detectable mass of 33 Earth masses for a planet at 1 AU from a one solar-mass (1 Mo) star A plot of the radial velocity shifts forms a wave. Its wavelength tells you the period and size of the planets orbit. Its amplitude tells you the mass of the planet....
View Full Document
This note was uploaded on 09/12/2011 for the course AST 2002 taught by Professor Britt during the Spring '08 term at University of Central Florida.
- Spring '08