Perturbation evolution

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Antony Lewis
Posts: 1354
Joined: September 23 2004
Affiliation: University of Sussex
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Perturbation evolution

Post by Antony Lewis » February 27 2009

In case of use to anyone, I made a couple of movies of the linear transfer function evolution from high to low redshift:

Adiabatic mode:

http://cosmologist.info/notes/transfer_evolve.avi

CDM Isocurvature mode:

http://cosmologist.info/notes/transfer_evolve_iso.avi

Red photons, Blue CDM, Green Baryons, all synchronous gauge, initial conditions are unit comoving curvature perturbation and unit CDM density perturbation respectively. For adiabtic I plotted the absolute value, for isocurvature negative are dashed.

Antony Lewis
Posts: 1354
Joined: September 23 2004
Affiliation: University of Sussex
Contact:

Re: Perturbation evolution

Post by Antony Lewis » March 15 2011

I've also made a bunch of real-space evolution animations, linked from my early universe course page

http://cosmologist.info/teaching/EU/

There is also an animation showing the spherical harmonic decomposition of the earth (inspired by Matthias Bartelmann)

http://cosmologist.info/teaching/EU/anim_earth.avi

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