publication . Preprint . Article . 2008

Why we need to see the dark matter to understand the dark energy

M Kunz;
Open Access English
  • Published: 01 May 2008
Abstract
The cosmological concordance model contains two separate constituents which interact only gravitationally with themselves and everything else, the dark matter and the dark energy. In the standard dark energy models, the dark matter makes up some 20% of the total energy budget today, while the dark energy is responsible for about 75%. Here we show that these numbers are only robust for specific dark energy models and that in general we cannot measure the abundance of the dark constituents separately without making strong assumptions.
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Astrophysics, Dark matter, Mixed dark matter, Astronomy, Physics, Hot dark matter, Dark fluid, Dark energy, Light dark matter, Warm dark matter, Scalar field dark matter
Related Organizations

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[5] Kodama H and Sasaki M 1984 Progr. Theor. Phys. Suppl. 78 1 ; Ma C P and Bertschinger E 1995 Astrophys. J. 455 7

[6] Hu W 2004 lecture notes astro-ph/0402060

[7] Corasaniti P S et al 2004 Phys. Rev. D 70 083006

[8] Kunz M 2007 Preprint astro-ph/0702615

[9] Spergel D N et al. 2007 Astrophys. J. Suppl. 170 377

[10] Astier P et al 2006 Astron. Astrophys. 447 31

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publication . Preprint . Article . 2008

Why we need to see the dark matter to understand the dark energy

M Kunz;