对《来自弱引力透镜的无限平坦圆周速度与重子塔利-费希尔关系》的评论
Comment on "Indefinitely Flat Circular Velocities and the Baryonic Tully-Fisher Relation from Weak Lensing"
AI总结:
针对孤立星系弱引力透镜观测到的1 Mpc范围内平坦圆周速度曲线与LCDM模拟矛盾的问题,该研究提出弗里德曼模型外的宇宙几何额外力可提升速度,解释该现象。
摘要:
近期通过孤立星系弱引力透镜测量圆周速度曲线的研究得出结论:圆周速度曲线在远超出暗物质晕的位力半径、直至1 Mpc的范围内仍保持平坦。这一结果与LCDM数值模拟存在明显矛盾。我们证明,源自弗里德曼模型之外的宇宙几何结构的额外宇宙力,会提升测试星系天体的圆周速度,并避免标准LCDM速度曲线出现下降。
英文摘要:
The recent measurements of circular velocity curves from weak lensing of the isolated galaxies lead to a conclusion that the circular velocity curves remain flat well beyond the virial radii of dark matter halos up to 1 Mpc. This is in clear contradiction with the LCDM numerical simulations. We show that the additional cosmic force originating from the geometry of the Universe beyond the Friedmann model increases the circular velocities of the test galactic bodies and avoids a decline of the standard LCDM velocity curves.
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。