arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0712.3795astro-ph
收藏

椭圆半导体的Sunyaev-Zel'dovich效应

The Sunyaev-Zel'dovich Effect On Elliptical Galaxies

B. V. Komberg, D. I. Nagirner, I. V. Zhuravleva

摘要:

本文简要回顾了星系中热气体的发现历史,描述了它的主要性质,并指出了使它们更加精确的必要性,特别是要获得关于这种气体质量的更多数据。为此,提出了对椭圆星系日冕热气的Sunyaev-Zel'dovich效应的观测。根据本文的公式计算了麦克斯韦电子对残余光子散射对宇宙微波辐射谱的绝对和相对扰动。本文以三个椭圆星系为例,说明在这类星系上观测SZ效应是完全可能的。由于星系的特殊运动和旋转而产生的运动学SZ效应也可用于观测。这种观测与X射线数据相结合,将有可能更多地了解星系气体的性质,获得关于星系旋转、可能的吸积气体流和热星系风的更多信息。

英文摘要:

The history of discovering of hot gas in galaxies is traced briefly, its main properties are described and the desirability to make them more precise, in particular to obtain additional data on the mass of such gas is pointed out. For this purpose observations of the Sunyaev-Zel'dovich effect on hot gas of coronas of elliptic galaxies are proposed. The absolute and relative disturbances of the cosmic microwave radiation spectrum due to scattering of relic photons by Maxwellian electrons are calculated according the formula of the article. With the example of three elliptic galaxies it is shown that observation of the SZ effect on such galaxies is quite possible. Kinematic SZ effect arising due to peculiar movement and rotation of galaxies is available for observation as well. Such observations combined with X-ray data would make it possible to get more about properties of galactic gas, to obtain additional information on rotation of galaxies, on possible accreting gas flows and on hot galactic wind.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑