Q1: Read in this spectra of an AGN. The attached file has columns of wavelength ($\unicode{x212B}$), flux ($ergs/s/cm^2/\unicode{x212B}$), and error. Plot this spectra in terms of wavelength vs. flux. Also plot in terms of frequency and flux ($ergs/s/cm^2/Hz$). How does the spectrum change?

Q2: Write a function to calculate the intensity from a source emitting as a blakbody as a function of wavelength. The function should have a doc string and test the results against analytic calculations to see if it works appropriately. Produce a plot for a sources of temperature T=1000, 5000, 15000.