Extracting Galaxy Redshifts from Real Data — part 1

Hey space invaders, in this video I go over how to write the necessary python functions needed to extract the redshift of a galaxy from its observed spectrum. Python Package links: numpy: https://numpy.org matplotlib: https://matplotlib.org astropy: http://www.astropython.org scipy: https://www.scipy.org Topics involved in this analysis: Least squares fitting: http://astronomy.nmsu.edu/holtz/a630/... Gaussian: https://ned.ipac.caltech.edu/level5/L... Doppler Redshift Equation: https://astronomy.swin.edu.au/cosmos/... Galaxy Spectrum: http://astronomy.nmsu.edu/nicole/teac... 0:00 Introduction 1:42 Importing packages 3:15 Building & Testing the Gaussian Function 8:12 Building & Testing the Double Gaussian Function 12:34 Building & Testing the Fitting Function 29:32 Building & Testing the Doppler Redshift Equation