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arXiv 0811.3606astro-phgr-qchep-ph
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大尺度宇宙流和运动的暗能量

Large-scale cosmic flows and moving dark energy

Jose Beltran Jimenez, Antonio L. Maroto

摘要:

最近,通过使用两种不同的技术,在100 Mpc/h和300 Mpc/h的尺度上探测到了相对于宇宙微波背景的大尺度物质体流,在运动方向上显示出极好的一致性。然而,在标准LCDM宇宙学的背景下,难以理解意外的大幅度测量。在这项工作中,我们表明,这种流动的存在可能是信号的存在,移动暗能量的时候,光子从物质解耦。我们还评论CMB偶极子的方向和在这种情况下观察到的四极的优选轴之间的关系。

英文摘要:

Large-scale matter bulk flows with respect to the cosmic microwave background have very recently been detected on scales 100 Mpc/h and 300 Mpc/h by using two different techniques showing an excellent agreement in the motion direction. However, the unexpectedly large measured amplitudes are difficult to understand within the context of standard LCDM cosmology. In this work we show that the existence of such a flow could be signaling the presence of moving dark energy at the time when photons decoupled from matter. We also comment on the relation between the direction of the CMB dipole and the preferred axis observed in the quadrupole in this scenario.

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。

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