测量半导体的膨胀或收缩
Measuring the Expansion or Contraction of Galaxies
摘要：
星系由于它们的亮度或气体流出而失去质量。我计算了由此产生的恒星向外的径向迁移，并表明它可能被下一代大型望远镜上的高分辨率光谱仪测量。在稠密的宇宙环境中物质的大量吸积可能会引发向内的恒星迁移，这将更容易测量。
英文摘要：
Galaxies lose mass as a result of their luminosity or gaseous outflows. I calculate the resulting radial migration of stars outwards and show that it could potentially be measured with high resolution spectrographs on the next generation of large telescopes. Substantial accretion of matter in dense cosmic environments could trigger inward stellar migration that would be even more easily measurable.
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。
