论文标题
使用Verlinde的紧急引力来了解星系旋转曲线
Understanding Galaxy Rotation Curves with Verlinde's Emergent Gravity
论文作者
论文摘要
我们介绍了与Verlinde的新兴重力分析星系旋转曲线的结果。我们使用SPARC（Spitzer光度法和准确旋转曲线）数据库中的数据，该数据库包含一个附近175个磁盘星系的样本，其表面光度法和旋转曲线为3.6 $ $ $ m。我们计算出与新出现重力的重力分布的不同半乳半层次半径的重力加速度，并将其与观察到的重力加速度进行比较，该加速度从银河系旋转曲线得出的引力加速度。预测和观察到的加速度与平均偏移$μ{\ rm [log（g_ {obs}） - log（g_ {ver}）]} = - 0.060 \ pm0.004 $和sctate $σ{\ rm [log rm [log {obs} - log {obs} - log（log log wima（g _ pp pm wim）} = 0.11]保姆宇宙。当我们假设一个更现实的宇宙时，这些偏移和散射会变得越来越小，即Quasi de Sitter Universe，为$μ= -0.027 \ pm0.003 $和$σ= 0.129 \ pm0.003 $。我们的结果表明，Verlinde的紧急重力可能是解决缺失的质量问题的一个很好的解决方案，而无需引入暗物质。
We present the results from the analysis of galaxy rotation curves with Verlinde's emergent gravity. We use the data in the SPARC (Spitzer Photometry and Accurate Rotation Curves) database, which contains a sample of 175 nearby disk galaxies with 3.6 $μ$m surface photometry and rotation curves. We compute the gravitational acceleration at different galactocentric radii expected from the baryon distribution of the galaxies with the emergent gravity, and compare it with the observed gravitational acceleration derived from galactic rotation curves. The predicted and observed accelerations agree well with a mean offset $μ{\rm [log(g_{obs})-log(g_{Ver})]}=-0.060\pm0.004$ and a scatter $σ{\rm [log(g_{obs})-log(g_{Ver})]}=0.137\pm0.004$ by assuming a de Sitter universe. These offset and scatter become smaller when we assume a more realistic universe, quasi de Sitter universe, as $μ=-0.027\pm0.003$ and $σ=0.129\pm0.003$. Our results suggest that Verlinde's emergent gravity could be a good solution to the missing mass problem without introducing dark matter.
