Science News内容：

　　题目：Does antimatter have antigravity?

　　摘要：There has since been much speculation about gravity and antimatter. The theoretical consensus is that any laboratory mass must be attracted6 by the Earth, although some authors have considered the cosmological consequences if antimatter should be repelled by matter. In the general theory of relativity, the weak equivalence principle (WEP) requires that all masses react identically to gravity, independent of their internal structure. This report will show that antihydrogen atoms, released from magnetic confinement in the ALPHA-g apparatus, behave in a way consistent with gravitational attraction to the Earth.

　　报告人：段欣辰（紫台研究生）

Journal club内容：

　　题目：Quantitative inversion of surface minerals on asteroids using Modified Gaussian Model

　　摘要：The absorption features of olivine and pyroxene in VNIR reflectance spectra are the key spectral parameters in its mineralogical studies. Generally, these spectral parameters can be obtained by exploiting the Modified Gaussian Model.High-calcium pyroxene is one of the most effective tracers of melting of a chondritic precursor may prove critical in future studies aimed at understanding the history of asteroidal bodies.The silicate mineralogy inferred for 847 Agnia requires that the asteroid experienced igneous differentiation, producing broadly basaltic surface lithologies.

　　报告人：黄海涛（紫台研究生）

　　时间：2023年10月31日星期二12:15

　　地点：紫台3-302

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