Large-scale homogeneity vs. small- scale inhomogeneity: testing ...

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01/18/2013 Peculiar velocities: tracers of matter • Provide map of underlying matter field • Velocity field related to density field via (assuming linear approximation): where − f: growth rate − γ: growth index • Unbiased (unlike galaxies) Morag I. Scrimgeour 30
Page 1 and 2: ICRAR is a partnership between the
Page 3 and 4: 01/18/2013 Testing large-scale cosm
Page 5 and 6: Inhomogeneity: alternative to Dark
Page 7 and 8: • So far, results are conflicting
Page 9 and 10: Fractal (correlation) dimension D 2
Page 11 and 12: 01/18/2013 Selection Function Corre
Page 13 and 14: • In ΛCDM expect: − Small scal
Page 15 and 16: How do we define the “homogeneity
Page 17 and 18: 01/18/2013 0.3
Page 19 and 20: 01/18/2013 0.7
Page 21 and 22: 01/18/2013 ΛCDM D 2(r) model: effe
Page 23 and 24: Scrimgeour et al. (2012) 01/18/2013
Page 25 and 26: • WiggleZ measurement of homogene
Page 27 and 28: 01/18/2013 What are peculiar veloci
Page 29: 01/18/2013 Large-scale Dark Matter
Page 33 and 34: • Nature of dark energy − Expan
Page 35 and 36: Advantages Peculiar Velocities as a
Page 37 and 38: Velocity Field Statistics II • Ve
Page 39 and 40: Millennium Simulation ΛCDM Bulk Fl
Page 41 and 42: 01/18/2013 Several potential system
Page 43 and 44: • Widefield ASKAP L-band Legacy A
Page 45 and 46: • Optical widefield automated sur
Page 47 and 48: 01/18/2013 Bulk Flows: Minimum Vari
Page 49 and 50: 01/18/2013 Bulk Flows: ΛCDM result
Page 51 and 52: 01/18/2013 True bulk flow Observed
Page 53 and 54: 01/18/2013 Bulk Flow Systematics fr
Page 55 and 56: 01/18/2013 Bulk Flow Systematics fr
Page 57 and 58: • |u| = 275 ± 57 km/s 01/18/2013

Large-scale homogeneity vs. small- scale inhomogeneity: testing ...

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