极紫外百万度等离子体(EUV)天体物理学
Million Degree Plasmas in Extreme Ultraviolet (EUV) Astrophysics
摘要:
百万度等离子体在宇宙中无处不在,例子包括白矮星的大气层;年轻恒星的吸积现象,灾难性的变量和活动星系核;恒星的日冕;以及我们自己的星系和其他星系的星际介质。百万度等离子体的大部分辐射是在极紫外(EUV)波长下发射的,其中包括含有诊断信息的关键光谱特征,这些信息通常在其他波长下不可用。在成熟的仪器技术的支持下,这里有很大的机会获得令人兴奋的发现。
英文摘要:
Million degree plasmas are ubiquitous in the Universe, and examples include the atmospheres of white dwarfs; accretion phenomena in young stars, cataclysmic variables and active galactic nuclei; the coronae of stars; and the interstellar medium of our own galaxy and of others. The bulk of radiation from million degree plasmas is emitted at extreme ultraviolet (EUV) wavelengths, which includes critical spectral features containing diagnostic information often not available at other wavelengths. With underpinning by a mature instrument technology, there is great opportunity here for exciting discoveries.
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