The third week of the MIAPP workshop is going strong! - Two definitely non-zero signals of the CMB which have not been seen yet: the CMB bispectrum due to second-order effects and the non-black-body anisotropies due to Rayleigh scattering [Lewis] - CMB lensing: polarisation-only 5-sigma detection from the 3-month-only ACTpol data. Expects 50+ sigma from ACTpol+SPTpol+PolarbearII, yielding an upper bound on the total neutrino mass of 0.1eV [Sherwin] - A new generalised scaling relation for estimating the total mass of galaxy clusters, which gives a smaller scatter than the previous methods [Ettori] - Cosmological constraints from REFLEX-II cluster survey, and investigations of the super-clusters defined by friends-of-friends of clusters. We may live in a slight under-dense region, which may reconcile the local and global values of H0 measurements [Chon] - 2Gpc/h with 2x2048^3 particles simulation of CDM+massive neutrinos. Calculations of the CMB lensing, redshift space distortions, the Rees-Sciama effect, and the halo mass function. Needs to use sigma(M_cdm) rather than sigma(M_total) in the mass function [Carbone] - Massive neutrinos inevitably make the galaxy bias depend on wave numbers, even in the linear scales. The multi-tracer method can measure the neutrino mass precisely if we have sufficient number densities of tracers [LoVerde] - Effective field theory of inflationary perturbations by integrating out heavy degrees of freedom. The curvature perturbation with non-zero speed of sound from turning of field trajectories uniquely relates the power spectrum to the bispectrum. Given the power spectrum, the bispectrum is immediately given [Gong] - Inflationary magneto-genesis with two vector fields. There is no no-go theorem, but it seems very difficult to generate magnetic fields from inflation [Ganc] - Great progress on understanding of the cosmic velocity fields. At last, the velocity fields inferred from the Tully-Fisher distances (SFI++) and from the galaxy density field (2MRS) agree. Peebless action method is the best method to reconstruct the initial density field. Gaia is a promising way to make further progress on the velocity field reconstruction [Nusser] - Circular polarisation of CMB: Faraday conversion of the linear polarisation of CMB from the last scattering, due to magnetic fields generated by supernovae during the epoch of reionisation [De] The next week is the grand finale of the workshop. It has been a great fun :D
Posted on: Fri, 12 Sep 2014 20:43:04 +0000
Trending Topics
© 2015