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Is dark energy the only solution to the apparent acceleration of the present universe?

Hideo Iguchi·Takashi Nakamura·Ken-ichi Nakao
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Abstract

Even for the observed luminosity distance D_L(z), which suggests the existence of dark energy, we show that an inhomogeneous dust universe solution without dark energy is possible in general. Future observation of D_L(z) for 1 \lesssim z < 1.7 may confirm or refute this possibility.

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Hideo Iguchi, Takashi Nakamura, Ken-ichi Nakao. 2002-10-21. Is dark energy the only solution to the apparent acceleration of the present universe?. https://doi.org/10.1143/ptp.108.809

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