Gravitational lensing and anisotropies of the cosmic background radiation on small angular scales | Zendy

J. M. Liu | Zendy; Jian Gong Gao | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Gravitational lensing and anisotropies of the cosmic background radiation on small angular scales

Author(s) -

J. M. Liu,

Jian Gong Gao

Publication year - 1995

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/277.1.152

Subject(s) - physics , gravitational lens , astrophysics , anisotropy , omega , background radiation , cosmic cancer database , cosmic background radiation , cosmic microwave background , weak gravitational lensing , gravitation , gravitational wave , radiation , strong gravitational lensing , astronomy , galaxy , optics , redshift , quantum mechanics

We investigate the effect of gravitational lensing, produced by linear density perturbations, for anisotropies of the Cosmic Background Radiation (CBR) on scales of arcminutes. In calculations, a flat universe (\Omega=1) and the Harrison-Zel'dovich spectrum (n=1) are assumed. The numerical results show that on scales of a few arcminutes, gravitational lensing produces only negligible anisotropies in the temperature of the CBR. Our conclusion disagrees with that of Cay\'{o}n {\it et al.} who argue that the amplification of \Delta T/T on scales \le 3' may even be larger than 100\%

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research