Cosmology: luminosity and magnitude

  • #1
Jozefina Gramatikova
64
9

Homework Statement


upload_2019-2-24_10-54-17.png


Homework Equations


upload_2019-2-24_10-54-53.png
[/B]


The Attempt at a Solution


(a)
52670785_2106751202949646_7243450039622696960_n.jpg?_nc_cat=100&_nc_ht=scontent.flhr4-2.jpg

53088147_2130416657004688_8045460836266803200_n.jpg?_nc_cat=108&_nc_ht=scontent.flhr4-1.jpg


(b)
53031585_380912926060200_2925124396479676416_n.jpg?_nc_cat=111&_nc_ht=scontent.flhr4-2.jpg


Could you tell me if what I am doing is correct? In part (b) they want M as a function of L so I assumed we have to get rid of the l. Do I have to use l(m=0) = 1.52 x 10 ^(-8) ?[/B]
 

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