LEADER 04140nam 22006015 450 001 9910300559003321 005 20200704011328.0 010 $a3-319-96761-4 024 7 $a10.1007/978-3-319-96761-5 035 $a(CKB)4100000005471777 035 $a(DE-He213)978-3-319-96761-5 035 $a(MiAaPQ)EBC5485329 035 $a(PPN)229915450 035 $a(EXLCZ)994100000005471777 100 $a20180801d2018 u| 0 101 0 $aeng 135 $aurnn|008mamaa 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aBeyond ?CDM $eExploring Alternatives to the Standard Cosmological Paradigm /$fby Sownak Bose 205 $a1st ed. 2018. 210 1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2018. 215 $a1 online resource (XXXIV, 181 p. 49 illus., 31 illus. in color.) 225 1 $aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 311 $a3-319-96760-6 327 $aIntroduction -- Statistical Properties of Warm Dark Matter Haloes -- Substructure and Galaxy Formation in Warm Dark Matter Simulations -- Reionisation in Sterile Neutrino Cosmologies -- Testing the Quasi-Static Approximation in F (R) Gravity Simulations -- Speeding up N-Body Simulations of Modi?ed Gravity: Chameleon Screening Models -- Conclusions and Future Work. 330 $aThis book employs computer simulations of ?artificial? Universes to investigate the properties of two popular alternatives to the standard candidates for dark matter (DM) and dark energy (DE). It confronts the predictions of theoretical models with observations using a sophisticated semi-analytic model of galaxy formation. Understanding the nature of dark matter (DM) and dark energy (DE) are two of the most central problems in modern cosmology. While their important role in the evolution of the Universe has been well established?namely, that DM serves as the building blocks of galaxies, and that DE accelerates the expansion of the Universe?their true nature remains elusive. In the first half, the authors consider ?sterile neutrino? DM, motivated by recent claims that these particles may have finally been detected. Using sophisticated models of galaxy formation, the authors find that future observations of the high redshift Universe and faint dwarf galaxies in the Local Group can place strong constraints on the sterile neutrino scenario. In the second half, the authors propose and test novel numerical algorithms for simulating Universes with a ?modified? theory of gravity, as an alternative explanation to accelerated expansion. The authors? techniques improve the efficiency of these simulations by more than a factor of 20 compared to previous methods, inviting the readers into a new era for precision cosmological tests of gravity. 410 0$aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 606 $aCosmology 606 $aAstrophysics 606 $aMathematical physics 606 $aPhysics 606 $aGravitation 606 $aCosmology$3https://scigraph.springernature.com/ontologies/product-market-codes/P22049 606 $aTheoretical Astrophysics$3https://scigraph.springernature.com/ontologies/product-market-codes/P22080 606 $aNumerical and Computational Physics, Simulation$3https://scigraph.springernature.com/ontologies/product-market-codes/P19021 606 $aClassical and Quantum Gravitation, Relativity Theory$3https://scigraph.springernature.com/ontologies/product-market-codes/P19070 615 0$aCosmology. 615 0$aAstrophysics. 615 0$aMathematical physics. 615 0$aPhysics. 615 0$aGravitation. 615 14$aCosmology. 615 24$aTheoretical Astrophysics. 615 24$aNumerical and Computational Physics, Simulation. 615 24$aClassical and Quantum Gravitation, Relativity Theory. 676 $a523.1 700 $aBose$b Sownak$4aut$4http://id.loc.gov/vocabulary/relators/aut$0833867 906 $aBOOK 912 $a9910300559003321 996 $aBeyond ?CDM$92498796 997 $aUNINA