The 2nd International Symposium on Cosmology and Ali CMB Polarization Telescope

Session

Science-1

7 Sep 2019, 15:20

京师大厦3楼6会议室 (北京师范大学)

Contribution list Timetable

33. Constructing unbiased estimator for CMB polarizations in the optimal way

Prof. Wen Zhao (USTC)

07/09/2019, 15:20

In this talk, I will introduce the method to restruct the unbiased estimators of CMB polarizations with the method a quadratic maximum likelihood (QML), and how to combine it with the E-B separation methods. By simulations, we study the uncertainties of these estimators, and the possible E-B leakages. By comparing with the results of pseudo-Cl methods, we show the necessity of QML in the low...

6. The hemispherical power asymmetry after Planck

Shamik Ghosh (University of Science and Technology of China)

07/09/2019, 15:35

In this talk we will briefly summarise the current status of the hemispherical power asymmetry after the 2018 Planck data release. In particular, we will focus on the CMB polarisation results. We will look at preliminary and simplified cases for a power asymmetry signal in CMB polarisation as seen with AliCPT and a possible south-pole-based ground CMB polarisation experiment.

35. the cosmic infrared background

Prof. Bin Yue (NAOC)

07/09/2019, 15:50

the cosmic infrared background (CIB) is the cumulative radiation from all galaxies along the line-of-sight, including those too faint to resolve in galaxy surveys. CIB is useful in reconstructing the full cosmic star formation history. I will review the theoretical models for the CIB, and present the forecast for CIB cross-correlations with others, e.g., lensing and emission line intensity mapping.

20. CMB lensing reconstruction in AliCPT

Bin Hu (Beijing Normal University)

07/09/2019, 16:05

I will report our progress in the lensing reconstruction, including noise level estimation, simulation, and spectrum reconstruction.