Talk on "Cosmic Anomalies" by Peter Coles given at the Conference "Current and Future Challenges of the Dark and Early Universes", Niels Bohr Institute, Copenhagen, 8-12 August 2011.

1. Cosmic Anomalies Peter Coles (Cardiff) DEUS, Copenhagen, Tuesday 9 th August 2011

2. Part I: Rambling Introduction

6. “ CONCORDANCE”

7. Theory (  , n, H 0 …) Observations

13. Precision Cosmology “… as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns -- the ones we don't know we don't know.”

14. Part II: CMB Anomalies

15. Weirdness in Phases For a homogeneous and isotropic Gaussian random field (on the sphere) then the phases are independent and uniformly distributed.

25. (from Hansen et al. 2004)

26. (from Copi et al. 2005)

29. “ If tortured sufficiently, data will confess to almost anything” Fred Menger

30. Is there an Elephant in the Room?

32. Part III: Extreme Objects

34. Extreme Value Statistics (exact) Given the distribution of X, what is the distribution of X max ?

35. Extreme Value Statistics (asymptotic) For any distribution of exponential type, in the sense that Then there is a stable asymptotic distribution

37. PDF

41. Mass Function e.g. Sheth & Thormen: Correction for primordial non-Gaussianity

42. Waizman, Ettori & Moscardini, 2001 arXiv:1105.4099 See also: Colombi et al. 2011; Davis et al. 2011 These use alternative parametrisation