April6_09Lecture

April6_09Lecture - Doppler effect on electromagnetic...

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Unformatted text preview: Doppler effect on electromagnetic radiation ( light ) v star Star approaching: Blue shift Star receding: Red shift Eyeballs: both at rest in S (frame of picture). Light from a nearby galaxy, at rest with respect to us. Wavelength (nm) Light from a distant galaxy Q1April 6. The plots below are spectra of starlight from a distant (top) and a nearby galaxy (bottom). The dark bars are spectral lines absorbed by elements in the stars. H Na Light from a nearby galaxy, at rest with respect to us. Wavelength (nm) Light from a distant galaxy Q1April 6. The plots below are spectra of starlight from a distant (top) and a nearby galaxy (bottom). The dark bars are spectral lines absorbed by elements in the stars. H Na Is the distant galaxy moving (A) towards or (B) away from us? Light from a nearby galaxy, at rest with respect to us. Wavelength (nm) Light from a distant galaxy, at ~ 0.05c. Q1April 6. The plots below are spectra of starlight from a distant (top) and a nearby galaxy (bottom). The dark bars are spectral...
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This note was uploaded on 06/24/2009 for the course PHYS 5 taught by Professor Freedman during the Spring '08 term at UCSB.

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April6_09Lecture - Doppler effect on electromagnetic...

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