【摘 要】
：
Globular clusters(GCs)are among the most congested stellar systems in the Universe.From a dynamical point of view GCs are the only astrophysical systems tha
【出 处】
：
国际天文学联合会第312次专题会议
论文部分内容阅读
Globular clusters(GCs)are among the most congested stellar systems in the Universe.From a dynamical point of view GCs are the only astrophysical systems that,within the time-scale of the age of the Universe,undergo nearly all the physical processes known in stellar dynamics,such as: gravothermal instability,violent relaxation,energy equipartition,2-body and higher order collisions,binary formation and heating,“erosion” by the tidal interaction with external fields.For these reasons,GCs not only are the ideal laboratories to study the effects of dynamics on stellar evolution but are also efficient factories for the production of interesting and observable astrophysical exotica like Blue Straggler Stars(BSSs),Cataclysmic Variables(CVs)and the intermediate-mass black holes(IMBHs).In this talk I will review the main observational properties of the population of the exotica in GCs,focusing on possible open questions and future prospective.
其他文献
There is a strong argument in favor of the shapes of planetary nebulae(PNe)being related to angular momentum of the central engine.It has also been found th
水稻中关于OsOFPs基因家族成员的报道很少,对于相关蛋白功能也所知甚少。在拟南芥中,AtOFP蛋白与生长发育相关,可能抑制细胞伸长。本实验在以往的研究中,已从T-DNA插入突变体
We present optical,IR and X-ray photometric study of a sample of radio loud early type galaxies chosen from B2 sample.To get radial profiles of various phot
Globular clusters presently reside in the silent waters of galaxy haloes,but their formation environment in high-redshift galaxies was more reminiscent of t
Supermassive black holes are typically surrounded by a dense stellar population in galactic nuclei.Once a star approaches close enough the black hole(BH),it
本研究对塔里木河胡杨林采集的胡杨树叶中分离的内生潜在新菌种NTA-7T进行形态特征、生理生化特征、化学分类特征、16S rRNA基因序列系统发育分析和分子分类特征相结合的多相
手性是自然界存在的普遍的现象,手性分子对于研究生命科学、制药工程及材料科学中起着重要的基础作用。手性金属配合物作为目前的研究热点,不仅具有迷人的拓扑学结构,还在手性拆分和手性催化等方面具有较高的利用价值,受到科学家们的广泛关注。近年来,关于手性金属配合物的合成与应用取得了显著的进展,但简单廉价地获取性能优越的手性分子仍然是该领域的终极目标。在众多手性分子中,天然的手性羧酸类化合物具有价格便宜,易于
随着对环境污染控制的日趋严格化和对清洁燃料需求的不断增加,对车用燃料油中芳烃含量的要求将越来越苛刻。同时,一些石油烃类溶剂油的使用也因其中芳烃含量的超标而限制了其应用范围。因此,各类油品中芳烃的脱除已成为油品精制工业中的一项重要内容,而开发和研究具有高性能的芳烃饱和催化加氢催化剂一直是催化领域研究的热点。为此,本文主要做了以下三方面的工作: 首先,以高分子聚合物PVP为分散剂和保护剂以及超细
The role of stability in the general three-body problem is investigated with regard to the tidal radius of a globular cluster in a galactic potential.A stab
研究了一种合成高纯度、高分解温度的四溴双酚A双（2，3-二溴丙基）醚新工艺。首先采用体积比为3：1的四氯化碳-水作溶剂，在强酸性介质中，以双氧水氧化HBr，加入十二烷基苯磺酸钠，摩尔比为