Spectroscopic Measurement of Solar Rotation
Starts November 18
Due December 9, 2008
Lab 5 Instructions
Resources:
Using the Apogee Camera and the Max DL Software: Short Manual
A review of Spectrometer Basics (handout by James Graham): spectrometer.pdf
Coordinate Transformations and the Sun: solarcoords.pdf
Convolutions, Correlations, and Fourier Transforms (handout by James Graham): convolution.pdf
A short video of a Sun scan: MPEG
A nice way to convince yourself the Sun is rotating, a movie of recent data taken by the satellite SOHO: MPEG
(You can visit their webpage here for an excellent assortment of real-time data on the Sun.
Solar Latitude and Longitude video: MPEG : This movie shows the lines of solar latitude and longitude (left panel) and contours radial velocity (right panel) as viewed from the earth. The Julian day minus 2440000 is shown in the title of the left panel. The date runs from Jan 1 to Dec 31. The two angles, eta and xi are the tilt of the spin axis and the latitude of the central point on the solar disk, respectively. Contours are labelled in units if km/s: note the minus signs on the right hand side of the disk (receding limb).
Links
Solar Spectral Atlas from
the NSO Digital Library
Coordinates
of the Sun from Nasa
