标题： 螺旋星系作为对映体：手性，化学和天体物理学中的潜在特征 显示英文标题

标题： Spiral Galaxies as Enantiomers: Chirality, an Underlying Feature in Chemistry and Astrophysics

摘要： 螺旋星系是轴对称的天体，投射到平面上时表现出二维手性。 文中指出了它们与四面体分子的共同特征，特别是遗传星系存在一种优选的手性模式，这一点与氨基酸和糖相同。 环境效应可能会影响原本孤立的恒星系统的固有手性，因此在星系的哈勃形态序列中识别出手性逐渐丧失的现象。 显示英文摘要

摘要： Spiral galaxies are axi-symmetric objects showing 2D-chirality when projected onto a plane. Features in common with tetrahedral molecules are pointed out, in particular the existence of a preferred chiral modality for genetic galaxies as in aminoacids and sugars. Environmental effects can influence the intrinsic chirality of originally isolated stellar systems so that a progressive loss of chirality is recognised in the Hubble morphological sequence of galaxies.