Extracting Galaxy Redshifts from Real Data — part 1
Автор: Kelly Sanderson
Загружено: 2021-08-20
Просмотров: 9017
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
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