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Books > Science & Mathematics > Physics > Relativity physics
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Beyond CDM - Exploring Alternatives to the Standard Cosmological Paradigm (Paperback, Softcover reprint of the original 1st ed. 2018)
Loot Price: R2,873
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Beyond CDM - Exploring Alternatives to the Standard Cosmological Paradigm (Paperback, Softcover reprint of the original 1st ed. 2018)
Series: Springer Theses
Expected to ship within 10 - 15 working days
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This book employs computer simulations of 'artificial' Universes to
investigate the properties of two popular alternatives to the
standard candidates for dark matter (DM) and dark energy (DE). It
confronts the predictions of theoretical models with observations
using a sophisticated semi-analytic model of galaxy formation.
Understanding the nature of dark matter (DM) and dark energy (DE)
are two of the most central problems in modern cosmology. While
their important role in the evolution of the Universe has been well
established-namely, that DM serves as the building blocks of
galaxies, and that DE accelerates the expansion of the
Universe-their true nature remains elusive. In the first half, the
authors consider 'sterile neutrino' DM, motivated by recent claims
that these particles may have finally been detected. Using
sophisticated models of galaxy formation, the authors find that
future observations of the high redshift Universe and faint dwarf
galaxies in the Local Group can place strong constraints on the
sterile neutrino scenario. In the second half, the authors propose
and test novel numerical algorithms for simulating Universes with a
'modified' theory of gravity, as an alternative explanation to
accelerated expansion. The authors' techniques improve the
efficiency of these simulations by more than a factor of 20
compared to previous methods, inviting the readers into a new era
for precision cosmological tests of gravity.
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