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delon
  • Member for 4 years, 5 months
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answered
Change of variables from FRW metric to Newtonian gauge
answered
Proving the properties of kernels in cosmological non-linear perturbation theory
awarded
 Yearling
comment
How to express the linear growth equation in Cosmology in terms of $\partial_a$
No, $\Omega_{\Lambda,0}$ in Eq. (1) is truly a constant by definition (made a small edit to make this more clear). See the discussion around Eq. (1.3.120) in these lectures notes. I'm not sure what notes you're reading so I don't know if the author is considering a matter-dominated universe but this result is true in a universe where $\Omega_{\Lambda,0} \ne 0$
revised
How to express the linear growth equation in Cosmology in terms of $\partial_a$
quick edit to fix inconsistent notation
awarded
 Teacher
revised
How to express the linear growth equation in Cosmology in terms of $\partial_a$
clarified notation
answered
How to express the linear growth equation in Cosmology in terms of $\partial_a$
revised
Transfer function from initial Curvature Perturbations to CMB Temperature Anisotropies has no direction dependence?
fixed answer
accepted
Transfer function from initial Curvature Perturbations to CMB Temperature Anisotropies has no direction dependence?
answered
Transfer function from initial Curvature Perturbations to CMB Temperature Anisotropies has no direction dependence?
asked
Transfer function from initial Curvature Perturbations to CMB Temperature Anisotropies has no direction dependence?
awarded
 Curious
asked
Why are departures from flat spacetime geometry small on scales smaller than the Hubble radius?
comment
Understanding the Meszaros Effect in terms of Hubble Drag
Thanks for the answer! Quick clarifying question: why can we say that the red and green term are of order $H^2$?
accepted
Understanding the Meszaros Effect in terms of Hubble Drag
asked
Understanding the Meszaros Effect in terms of Hubble Drag
awarded
 Supporter
accepted
Question about deriving the amount of pressure due to an element of momentum space in cosmology (Baumann Cosmology Book Eq. 3.10)
asked
Question about deriving the amount of pressure due to an element of momentum space in cosmology (Baumann Cosmology Book Eq. 3.10)
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