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时间:2020-10-15 10:52 来源: Essay代写

摘要:People reading and report 阅读与报告report 范文 Brief: This paper tried to answer the question: Are ultra-compact dwarf galaxys extremely massive star clusters, or are they the nuclei of galaxies that have had their outer layers stripped off t......

People reading and report  阅读与报告report 范文
 
Brief: This paper tried to answer the question: Are ultra-compact dwarf galaxys extremely massive star clusters, or are they the nuclei of galaxies that have had their outer layers stripped off through gravitational interactions with other galaxies? Whether etstripped galaxy nuclei harbour supermassive black holes and are therefore stripped galaxy nuclei. 
 
这篇论文试图回答这个问题:是超紧密的矮星系的超大质量的星团,还是由于与其他星系的引力作用而失去了外层的星系核?被剥离的星系核是否拥有超大质量黑洞,因此是否为剥离星系核。
 
 1.People reading and report
 
  This paper tried to answer the question: Are ultra-compact dwarf galaxys extremely massive star clusters, or are they the nuclei of galaxies that have had their outer layers stripped off through gravitational interactions with other galaxies? Whether etstripped galaxy nuclei harbour supermassive black holes and are therefore stripped galaxy nuclei. 
 
  The underlying scientific motivation: Seth and colleagues’ discovery is an important step towards understanding the nature of ultra-compact dwarf galaxies. Many other ultra-compact dwarfs show tantalizing hints that they, too, harbour supermassive black holes and are therefore stripped galaxy nuclei, but direct evidence is lacking. The authors are participating in ongoing observing programmes that may provide conclusive evidence for supermassive black holes in four 
other ultra-compact dwarfs. 
 
1.人们阅读和报道
 
这篇论文试图回答这个问题:是超紧密的矮星系的超大质量的星团,还是由于与其他星系的引力作用而失去了外层的星系核?被剥离的星系核是否拥有超大质量黑洞,因此是否为剥离星系核。
 
潜在的科学动机:赛斯和他的同事们的发现是理解超紧凑矮星系本质的重要一步。许多其他的超紧凑矮星也显示出诱人的迹象,表明它们也拥有超大质量的黑洞,因此是被剥离的星系核,但缺乏直接的证据。作者们正在参与正在进行的观测项目,这些项目可能为四个超大质量黑洞提供确凿证据
 
其他的超小型相形见绌。
 
   The authors already answered this question, Seth et al.‘weighed’ the black hole by determining its gravitational influence on nearby stars orbiting it. To explain the observed stellar velocities and the distribution of light within M60-UCD1, they had to invoke the presence of a central black hole with a mass 21 million times that of our Sun. A black hole of that size would be expected to reside in a host galaxy with a mass of about 7 billion solar masses.
 
    However, at the same time, new problem raised.The evidence for a supermassive black hole in M60-UCD1 is strong, but it is not the only possible explanation for thedata. Although seemingly unlikely, we cannot definitively rule out the existence of a population of low-mass stars or dead stellar remnants at the galaxy’s centre that do not produce much visible light. An X-ray source that might be produced by a supermassive black hole has been detected at the heart of M60-UCD1, but this radiation could also be generated by the dead remnant of a star.
 
     The most interesting is that:  how did such a big black hole get into such a tiny galaxy?
     Also, the calculation and theory in this paper makes me confused. It is difficult for me to understand.
 
Seth等人已经回答了这个问题。通过确定黑洞对附近围绕它运行的恒星的引力影响来“权衡”黑洞。为了解释在M60-UCD1中观测到的恒星速度和光的分布,他们不得不援引一个中心黑洞的存在,其质量是太阳的2100万倍。一个这样大小的黑洞应该居住在一个质量约为70亿太阳质量的主星系中。
 
但与此同时,也出现了新的问题。在M60-UCD1中存在超大质量黑洞的证据很充分,但这不是对这些数据的唯一可能解释。虽然看起来不太可能,但我们不能确定地排除在星系中心存在低质量恒星或死恒星残骸的存在,这些恒星不会产生太多可见光。在M60-UCD1的中心发现了可能由超大质量黑洞产生的x射线源,但这种辐射也可能由恒星的死亡残骸产生。
 
最有趣的是:这么大的黑洞是如何进入这么小的星系的?
 
此外,本文的计算和理论也让我感到困惑。这对我来说很难理解。
 
2.Press coverage
 
These press releases are written according to the release of Detection of a Supermassive Black Hole in an Ultra-compact Dwarf Galaxy with some exaggerations which also ignore the quite difficult calculations and theories which the public also don’t understand, and giving the analogies when writing.
 
I can see a lot of particularly effective phrases, analogies, images, or illustrations in the press releases which i think help the audience understand.
 
The press releases choose to focus on this subtopic from this paper: This suggests that there may be many more supermassive black holes that we have missed, and tells us more about the formation of these incredibly dense galaxies. They don’t show the limitation and new questions raised from this paper because the press release should not be so rigorous.
 
In my opinion, I think i would write the press release in a little different way, telling the truth and show the facts. I think it is the responsibility of the press.
 
The amount of contents in which news coverage write their own interpretation versus simply transcribe portions of the press releases is about 50 percentage.
 
The new coverage add subtopics or graphics from the press releases as we can see from the report and subtract some confusing graphs.
 
I think if a reader read the press news coverage, it is easier for him or her to get the most important information compared to academic paper because the press choose information which the public show interest in, however, he or she also tend to be mislead or ignore some important hypothesis or prerequisite or limitation in the original paper. In a word, the press news coverage is more understandable but less accurate and rigorous than the academic paper.
 
2.新闻报道
 
这些新闻稿是根据一个超紧凑的矮星系中发现一个超大质量黑洞的新闻稿写成的,有些夸张,也忽略了相当困难的计算和公众也不理解的理论,并在写作时进行类比。
 
我能在新闻稿中看到很多特别有效的短语、类比、图像或插图,我认为这些有助于观众理解。
 
新闻稿选择关注这篇论文的这个小主题:这表明可能有更多的超大质量黑洞被我们遗漏了,并告诉我们更多关于这些难以置信密度星系的形成。它们没有显示出本文的局限性和新问题,因为新闻稿不应该如此严格。
 
在我看来,我想我会用一种不同的方式来写新闻稿,说出真相,显示事实。我认为这是媒体的责任。
 
在新闻报道中,有大约50%的内容是由新闻报道自己撰写解释,而不是简单地抄写部分新闻稿。
 
正如我们从报告中看到的,新的报道从新闻发布中添加了子主题或图形,并删除了一些令人困惑的图表。
 
我认为如果一个读者阅读新闻的新闻报道,这是他或她更容易获得最重要的信息相比,学术论文,因为媒体选择信息,公众表现出兴趣,然而,他或她也会误导或忽略一些重要的假设或前提或限制在原来的纸。总而言之,新闻报道比学术论文更容易理解,但准确性和严谨性较差。

阅读与报告report 范文http://www.0592w.com/Reportfanwen/fanwen545.html

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