Open AccessIs Dark Energy the Only Solution to the Apparent Acceleration of the Present Universe?
Author(s) -
H. Iguchi,
Takuji Nakamura,
K.-i. Nakao
Publication year - 2002
Publication title -
progress of theoretical physics
Language(s) - English
Resource type - Journals
eISSN - 1347-4081
pISSN - 0033-068X
DOI - 10.1143/ptp.108.809
Subject(s) - physics , dark energy , astrophysics , luminosity , acceleration , universe , dark fluid , metric expansion of space , astronomy , cosmology , classical mechanics , galaxy
Even for the observed luminosity distance D_L(z), which suggests theexistence of dark energy, we show that an inhomogeneous dust universe solutionwithout dark energy is possible in general. Future observation of D_L(z) for 1\lesssim z < 1.7 may confirm or refute this possibility.Comment: 10 pages, 6 figures, Prog. Theor. Phys. in pres
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