Imprints of local lightcone projection effects on the galaxy bispectrum. Part III. Relativistic corrections from nonlinear dynamical evolution on large-scales
Imprints of local lightcone projection effects on the galaxy bispectrum. Part III. Relativistic corrections from nonlinear dynamical evolution on large-scales
复制标题
局部光锥投影对星系双谱的影响的印记。
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
C. Clarkson
中科院分区：
文献类型：
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作者：
Sheean Jolicoeur;Obinna Umeh;R. Maartens;C. Clarkson
星系双谱在等尺度及以上受到相对论观测效应的影响，在线性和非线性阶上。这些光锥效应包括来自多普勒和引力势项的局部贡献，以及透镜效应等综合贡献，以及非线性顺序的所有耦合。我们最近提出了对星系双光谱的校正，从所有的局部光锥效应到二阶摄动，使用平面平行近似。在这里，我们更新了之前的结果，加入了相对论非线性动力学演化的影响。我们发现这些动态效应对投影效应有重要贡献。
The galaxy bispectrum is affected on equality scales and above by relativistic observational effects, at linear and nonlinear order. These lightcone effects include local contributions from Doppler and gravitational potential terms, as well as integrated contributions like lensing, together with all the couplings at nonlinear order. We recently presented the correction to the galaxy bispectrum from all local lightcone effects up to second order in perturbations, using a plane-parallel approximation. Here we update our previous result by including the effects from relativistic nonlinear dynamical evolution. We show that these dynamical effects make a significant contribution to the projection effects.
影响因子：
5
作者：
Ananda, Kishore N.;Clarkson, Chris;Wands, David
通讯作者：
Wands, David
影响因子：
6.4
作者：
E. Villa ;C. Rampf
通讯作者：
C. Rampf