搜索结果: 1-4 共查到“高能天体物理学 Cosmological”相关记录4条 . 查询时间(0.078 秒)
Asymptotically safe gravity as a scalar-tensor theory and its cosmological implications
Asymptotically gravity scalar-tensor theory cosmological implications
2011/10/14
We study asymptotically safe gravity with Einstein-Hilbert truncation taking into account the renormalization group running of both gravitational and cosmological constants. We show the classical beha...
Ultraviolet Divergences in Cosmological Correlations
Ultraviolet Divergences Cosmological Correlations
2010/11/16
A method is developed for dealing with ultraviolet divergences in calculations of cosmological correlations, which does not depend on dimensional regularization. An extended version of the WKB approxi...
Cosmological evolution of massive black holes: effects of Eddington ratio distribution and quasar lifetime
Galaxy Astrophysics (astro-ph.GA)
2010/12/22
A power-law time-dependent lightcurve for active galactic nuclei (AGNs) is expected by the self-regulated black hole growth scenario, in which the feedback of AGNs expels gas and shut down accretion. ...
Probing modifications of General Relativity using current cosmological observations
General Relativity integrated Sachs-Wolfe weak lensing
2010/3/9
We test General Relativity (GR) using current cosmological data: the cosmic microwave background (CMB) from WMAP5 (Komatsu et al. 2009), the integrated Sachs-Wolfe (ISW) effect from the cross-correla...