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gas at various distances from the galactic center using Excel. We will now take
this a step further, using a Python program to generate synthetic l-v diagrams and
spectra for different distributions of gas in galaxies.
a. Open the Synthetic_LV_Diagram.ipynb notebook. Run the IPython
notebook to the end with the “default” galaxy model. Read the description
of what is going on in the IPython notebook. Print the image produced at
the end of a synthetic l-v diagram for this “Realistic” Milky Way model (a
png file is saved, which you should be able to download and print out).
Compare this synthetic l-v diagram to the real one that was attached to the
last homework. Does it seem to reproduce the major features? NOTE:
The “feature” in the real l-v diagram extending from l=+30˚, v=+100 km/s
to l=–30˚, v=–100 km/s, is often ascribed to the 3 kpc...
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- Spring '14
- Dark Matter, absolute magnitude, IPython