In my talk, I will firstly review the structural properties of the Brightest Cluster Galaxies (BCGs) ! cD galaxies shown in the past few years.Secondly, I will show my latest results about the role of
临近极端贫金属星系(Z＜Zsun/10)是研究宇宙原始星系,以及理解低金属丰度条件下的星系特性和恒星形成的重要天文实验室.基于在Herschel红外空间望远镜上获得的高空间分辨率的成像观测,我们将讨论在极端贫金属条件下的尘埃特性随局域物理性质的变化规律.
我们利用国家天文台"老虎"超级计算机GPU集群、德国海德堡天文计算研究所的"Titan"GPU集群,进行6万个粒子的并行化高分辨率N体计算,模拟椭圆星系中球状星团的演化,研究椭圆星系的紫外反转现象.结合我们改进的"星系演化并合模型"软件:GALEV,将模拟的球状星团中恒星的数据,如质量、温度、光度、金属度等转换成对应地面或空间望远镜的观测星等,和覆盖远紫外到近红波段的光谱.
A nanocomposite of manganese dioxide coated manganese hexacyanoferrate was synthesized by a facile co-precipitation method and tested as active electrode material for an electrochemical supercapacitor
Based on analysisof karst fracture-vuggy filling mineralogy and geochemical fluorite in hercynian, this paper make further research about formation and significance of fluorite in central uplift of Ta
The removal of the antibiotic compound tetracycline hydrochloride (TC) was investigated by using goethite/H2O2 as a heterogeneous Fenton reagent.Five principle operational parameters, especially solut
Graphene oxide (GO) is a graphene derivatives that has oxygen-containing functional groups on the graphene basal plane, such as hydroxyl, carbonyl, epoxy and carboxyl groups.GO is considered as a prom
Mica glass-ceramics were prepared by pressureless sintering with a phlogopite and various additives as raw materials.The effects of CaF2 content, Li2O content, ZrO2 content, and sintering temperature
The Suizhou meteorite is an L6 chondrite.This meteorite is consisted of olivine, low-Ca pyroxene,plagioclase, FeNi metal, troilite, whitlockite, chlorapatite, chromite and ilmenite.Olivine and pyroxen
Effects of particle size and chain length on flotation of quaternary ammonium salts (QAS) onto kaolinite have been investigated by mico-flotation tests.The two kinds of quaternary ammonium salts [RN(C