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2008

Being PC: Principal Components and Dark Energy

de Putter, Roland, Linder, Eric V.

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Principal component analysis is considered as an addition to the well-tested parametrization w(a)=w_0+w_a(1-a) for the dark energy equation of state.

This brief note cautions against some unjustified assumptions in interpretation of PCA calculations, giving quantified examples.

Being PC: Principal Components and Dark Energy · Around

Built on

D. Huterer & G. Starkman, Phys. Rev. Lett. 90, 031301 (2003)
2003
Earlier work this paper cites.
E.V. Linder & D. Huterer, Phys. Rev. D 72, 043509 (2005)
2005
Earlier work this paper cites.
K. Kadota, S. Dodelson, W. Hu, E.D. Stewart, Phys. Rev. D 72, 023510 (2005)
2005
Earlier work this paper cites.

Similar

S. Leach, MNRAS 372, 646 (2006)
2006
Cited alongside, same era.
A. Albrecht & G. Bernstein, Phys. Rev. D 75, 103003 (2007)
2007
Cited alongside, same era.
R. de Putter & E.V. Linder, JCAP 0810, 042 (2008)
2008
Cited alongside, same era.
Figure of Merit Science Working Group summary, http://jdem.gsfc.nasa.gov/docs/Kolb_JDEM_FoMSWG.ppt
Cited in the paper.
Dark Energy Task Force report, arXiv:astro-ph/0609591
Cited in the paper.
M.J. Mortonson, W. Hu, D. Huterer, arXiv:0810.1744
Original
Cited in the paper.

Then

R. de Putter & E.V. Linder, Astropart. Phys. 29, 424 (2008)
2008
Closest in time.
M. Kowalski et al., ApJ 686, 749 (2008)
2008
Closest in time.

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