论文标题
来自Galaxy两点相关函数的原始特征的新约束
New constraints on primordial features from the galaxy two-point correlation function
论文作者
论文摘要
原始功率谱中的特征代表了早期宇宙物理学和进化的密度扰动中的印迹信号。对此类信号的测量将表示需要超越对宇宙扰动初始条件的最小假设。我们第一次使用未阻尼的振荡研究不同的模板，或者是从Boss DR12星系测得的两点相关函数的颠簸，这些函数限制了特征的幅度最多百分之几。约束与{\ em planck} DR3获得的约束竞争。
Features in the primordial power spectrum represent the imprinted signal in the density perturbations of the physics and evolution of the early Universe. A measurement of such signals will represents the need to go beyond the minimal assumption made for the initial conditions of the cosmological perturbations. For the first time, we study different templates with undamped oscillations or a bump from the two-point correlation function measured from BOSS DR12 galaxies constraining the amplitude of the features to be at most a few percent. Constraints are competitive to the ones obtained with {\em Planck} DR3.
