本文章最後由 iheby 於 2015-1-15 21:36 編輯
iheby 發表於 2014-12-1 23:44
Mega-masers, Cosmology and the Hubble Constant @Department of Physics, CUHK
2014.12.02(Tue) 16:00 - 17:00 ...
研討會: 以弱引力透鏡探測暗物質暈形狀 @中文大學物理系
2015.01.14(三) 15:30 -16:30
地點:香港中文大學 科學館北座 G26室
講者:朱俊彥先生 (美國伊利諾大學厄巴納-香檳分校天文系)
Studying shapes of dark matter (DM) halos can give us some information about the nature of DM, such as the DM self-interaction. One of the methods of probing DM halos is by galaxy-galaxy lensing. However, previous results on probing DM halo shapes have been inconclusive, they are often associated with large uncertainties. In this talk, I will present a new method to probe shapes of DM halos using the 3-point correlation function. This method has been shown to improve the error estimates from previous works by an order of magnitude when tested on simulation data. At the end, I will conclude by talking about the possibility of applying my method to actual observations in future surveys.
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