论文标题
宇宙在我们运动的方向上更加明亮：星系数和通量与CMB偶极子一致
The Universe is Brighter in the Direction of Our Motion: Galaxy Counts and Fluxes are Consistent with the CMB Dipole
论文作者
论文摘要
相对于宇宙休息框架移动的观察者应在运动方向上观察星系的浓度和亮度，并在相反的方向上散布和变暗。如果相对于CMB静止框架，则从该偶极子推断的速度应与宇宙微波背景（CMB）温度偶极子的速度相匹配。然而，最近的研究声称，与CMB期望相比，在太阳运动方向上的星系计数和通量增强了很多倍，这使标准宇宙学质疑。在这里，我们表明，乳乳外无线电源的天空分布和亮度与方向和速度的CMB偶极子一致。我们使用非常大的阵列Sky调查的第一个时代，结合了澳大利亚快速平方公里阵列探路者连续体调查，通过几种不同的方法估算偶极子，并且所有方法都显示出相似的结果。典型拟合查找$ 331^{+161} _ { - 107} $ km s $ s $^{ - 1} $速度偶极偶极偶极子，带有Apex $（\ ell，b）=（271^{+55} _ { - 58}，58}，56^{+13} $ 399^{+264} _ { - 199} $ km s $ s $^{ - 1} $ to $（\ ell，b）=（301^{+30} _ { - 30}，43^{+19} _ { - 17}）$来自无线电磁通量。这些与CMB - 摩尔速度一致，370 km S $^{ - 1} $ to $（\ ell，b）=（264，48）$，并表明星系平均相对于早期宇宙的休息框架，正如Canonical canonical的宇宙所预测的那样。
An observer moving with respect to the cosmic rest frame should observe a concentration and brightening of galaxies in the direction of motion and a spreading and dimming in the opposite direction. The velocity inferred from this dipole should match that of the cosmic microwave background (CMB) temperature dipole if galaxies are on average at rest with respect to the CMB rest frame. However, recent studies have claimed a many-fold enhancement of galaxy counts and flux in the direction of the solar motion compared to the CMB expectation, calling into question the standard cosmology. Here we show that the sky distribution and brightness of extragalactic radio sources are consistent with the CMB dipole in direction and velocity. We use the first epoch of the Very Large Array Sky Survey combined with the Rapid Australian Square Kilometer Array Pathfinder Continuum Survey to estimate the dipole via several different methods, and all show similar results. Typical fits find a $331^{+161}_{-107}$ km s$^{-1}$ velocity dipole with apex $(\ell,b) = (271^{+55}_{-58}, 56^{+13}_{-35})$ in Galactic coordinates from source counts and $399^{+264}_{-199}$ km s$^{-1}$ toward $(\ell,b) = (301^{+30}_{-30}, 43^{+19}_{-17})$ from radio fluxes. These are consistent with the CMB-solar velocity, 370 km s$^{-1}$ toward $(\ell,b) = (264, 48)$, and show that galaxies are on average at rest with respect to the rest frame of the early universe, as predicted by the canonical cosmology.
