Influence from cosmological uncertainties on galaxy number count at faint limit

Author:

Shen Keji1,Zhang Qiang1,Meng Xin-He12

Affiliation:

1. Department of Physics, Nankai University, Tianjin 300071, P. R. China

2. State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academic of Science, Beijing 100190, P. R. China

Abstract

Counting galaxy number density with wide range sky surveys has been well adopted in researches focusing on revealing evolution pattern of different types of galaxies. As understood intuitively the astrophysics environment physics is intimately affected by cosmology priors with theoretical estimation or vice versa, or simply stating that the astrophysics effect couples the corresponding cosmology observations or the way backwards. In this paper, we try to quantify the influence on galaxy number density prediction at faint luminosity limit from the uncertainties in cosmology, and how much the uncertainties blur the detection of galaxy evolution, with the hope that this trying may indeed help for precise and physical cosmology study in near future or vice versa.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

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