Radial Acceleration Relation of HI-rich Low Surface Brightness Galaxies
arxiv(2024)
摘要
We investigate the radial acceleration relation (RAR) in low surface
brightness galaxies selected from the Arecibo Legacy Fast ALFA survey. We find
that the dynamical acceleration g_ obs and baryonic gravitational
acceleration g_ bar of the HI-rich low surface brightness galaxies still
follow the universal RAR of typical late-type galaxies. The universal RAR
signifies a consistent correlation between the distribution of baryonic matter
and dark matter across galaxies with diverse morphologies and properties. Our
findings suggest that the matter distributions in low surface brightness
galaxies may indeed resemble that of general late-type galaxies. This implies
that low surface brightness galaxies may not originate from dark matter halos
with lower densities; instead, they may originate from the dark matter halos
with high spins or form through feedback processes.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要