What did you learn?

We have learned about some of the spectral differences between galaxies and now it’s your turn! We will show you below a list of different galaxy spectra and you will have to choose whether they are elliptical or spiral.

Remember to pay attention to whether the “4000 Break” is very evident or not, as well as the presence of absorption and emission lines. 

*Note: For this exercise ignore the presence of the green lines and only consider the blue spectrum.

1. Galaxy 8082-1901

2. Galaxy 8243-6101

3. Galaxy 7962-12704

4. Galaxy 9875-9102

5. Galaxy 8600-12701

6. Galaxy 8091-6101

7. Galaxy 9878-3701

8. Galaxy 8262-9102

9. Galaxy 9873-1901

10. Galaxy 9881-12701