2013

The effective gravitational decoupling between dark matter and the CMB

Voruz, Luc, Lesgourgues, Julien, Tram, Thomas

Understand

We present a detailed and self-contained analytical derivation of the evolution of sub-horizon cosmological perturbations before decoupling, based on previous work by S.

Weinberg.
These solutions are valid in the minimal LCDM scenario, to first order in perturbation theory, in the tight-coupling limit and neglecting neutrino shear stress.
We compare them to exact numerical solutions computed by a Boltzmann code, and we find the two to be in very good agreement.

Built on

Dover publications, New York, 1965
M. Abramowitz and I. Stegun, Handbook of Mathematical Functions · 1965
Earlier work this paper cites.
P. Meszaros, “The behaviour of point masses in an expanding cosmological substratum,” Astron.Astrophys
1974
Earlier work this paper cites.
E. J. Groth and P. J. E. Peebles, “Closed-form solutions for the evolution of density perturbations in some cosmological models,” Astron. & Astrophys
1975
Earlier work this paper cites.
C.-P. Ma and E. Bertschinger, “Cosmological perturbation theory in the synchronous and conformal Newtonian gauges,” Astrophys.J
1995
Earlier work this paper cites.
W. Hu and N. Sugiyama, “Small scale cosmological perturbations: An Analytic approach,” Astrophys.J
1996
Earlier work this paper cites.

Similar

S. Colombi, S. Dodelson, and L. M. Widrow, “Large scale structure tests of warm dark matter,” Astrophys.J
1996
Cited alongside, same era.
S. Weinberg, “Cosmological fluctuations of short wavelength,” Astrophys.J
2002
Cited alongside, same era.
Oxford University Press, 2008
S. Weinberg, Cosmology · 2008
Cited alongside, same era.
A. Boyarsky, J. Lesgourgues, O. Ruchayskiy, and M. Viel, “Realistic sterile neutrino dark matter with keV mass does not contradict cosmological bounds,” Phys.Rev.Lett
Original
2009
Cited alongside, same era.
P. Serra, F. Zalamea, A. Cooray, G. Mangano, and A. Melchiorri, “Constraints on neutrino – dark matter interactions from cosmic microwave background and large scale structure data,” Phys.Rev
Original
2010
Cited alongside, same era.
J. Lesgourgues, “The Cosmic Linear Anisotropy Solving System (CLASS) I: Overview,” arXiv:1104.2932 [astro-ph.IM]
Original
Cited in the paper.
Planck Collaboration
Original
Cited in the paper.
S. Galli, T. R. Slatyer, M. Valdes, and F. Iocco, “Systematic Uncertainties In Constraining Dark Matter Annihilation From The Cosmic Microwave Background,” arXiv:1306.0563 [astro-ph.CO]
Original
Cited in the paper.
R. J. Wilkinson, J. Lesgourgues, and C. Boehm, “Using the CMB angular power spectrum to study Dark Matter-photon interactions,” arXiv:1309.7588 [astro-ph.CO]
Original
Cited in the paper.
C. Dvorkin, K. Bum, and M. Kamionkowski, “Constraining Dark Matter-Baryon Scattering with Linear Cosmology,” arXiv:1311.2937 [astro-ph.CO]
Original
Cited in the paper.
F.-Y. Cyr-Racine, R. de Putter, A. Raccanelli, and K. Sigurdson, “Constraints on Large-Scale Dark Acoustic Oscillations from Cosmology,” arXiv:1310.3278 [astro-ph.CO]
Original
Cited in the paper.

Then

D. Blas, J. Lesgourgues, and T. Tram, “The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes,” JCAP
Original
2011
Later among the works it cites.
D. Blas, M. M. Ivanov, and S. Sibiryakov, “Testing Lorentz invariance of dark matter,” JCAP
Original
2012
Later among the works it cites.
Planck Collaboration
Original
2013
Closest in time.
Cambridge Univ. Press, Cambridge, 2013
J. Lesgourgues, G. Mangano, G. Miele, and S. Pastor, Neutrino cosmology · 2013
Closest in time.
Planck Collaboration
Original
2013
Closest in time.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

Reading the bibliography…