Scott A. Sinex Dept. of Physical Sciences & Engineering

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Presentation transcript:

Spectra, Doppler Shifts, and Exoplanets: A Novel Approach via Interactive Animated Spreadsheets Scott A. Sinex Dept. of Physical Sciences & Engineering Prince George’s Community College Presented at Astronomical Society of the Pacific Meeting in Baltimore, MD on 1-3 August 2011

Using spreadsheets… discover concepts in spectroscopy deal with data and its graphical interpretation use to mathematically model and camouflage mathematics add more science process skills generate an interactive learning environment using an off-the-shelf piece of software

then click on Astro Excelets Go to… http://academic.pgcc.edu/~ssinex/excelets then click on Astro Excelets or Just Google or Bing excelets Just remember one word

Discussed in this presentation More on the page

Generating the spectral lines http://academic.pgcc.edu/~ssinex/excelets/spectra.xls

Discovering red shift, blue shift… Math can be optional http://academic.pgcc.edu/~ssinex/excelets/spectra_2.xls

Discovering Hubble’s Law Need some discussion of mathematical modeling

Signal of exoplanet See the wobble http://academic.pgcc.edu/~ssinex/excelets/spectra_3.xls

What would an alien astronomer find? How many planets would they discover? How long would they need to observe?

More info… THANKS for attending today!!! Scott Sinex ssinex@pgcc.edu http://academic.pgcc.edu/~ssinex/excelets includes materials for developing Excelets THANKS for attending today!!!