### Author Topic: Problem: CMB power-spectrum - Changing two parameters  (Read 63 times)

#### winther

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##### Problem: CMB power-spectrum - Changing two parameters
« on: 15. April 2021, 18:51:49 »
Here is a more tricky problem. Below is the CMB power-spectrum for two cosmologies. In the second model I have changed *two* parameters among $$\Omega_{M0}, \Omega_{b0}, h, A_s, n_s, \tau_{\rm reion}$$. What parameters do you think I have changed? There might be more than one plausible answer so also try to explain why you think so. Bonus question: can you give a combination between those parameters that will be the same in both cosmologies. (Note that you can post answers anonymously by pressing "Attachments and other options below" and check "Post anonymously" if you want)
« Last Edit: 15. April 2021, 18:57:57 by winther »