galactic corona

基本解釋

The Galactic Dust in Corona Australis: Two blue-reflection nebulae.
南冕座星塵內(nèi)，兩個星云煥發(fā)著夢幻般的藍色光輝。
Above and below the galactic plain, in which Earth and our solar system reside, they detected an extremely thin, hot gas corona, or halo.
在這上下居住著地球和我們的太陽系的星系平原上，科學(xué)家發(fā)現(xiàn)一種極薄的熱氣日冕。
The galactic corona must therefore extend much farther out than was originally proposed by Spitzer— out to a few hundred thousand light-years, rather than a few thousand.
如此一來，星系冕的范圍必然延伸到比原先史畢哲所設(shè)想的還遠─不是數(shù)千，而是數(shù)十萬光年的遠處。