SIMULATED COSMIC MICROWAVE BACKGROUND MAPS AT 0-DEGREES-5 RESOLUTION - BASIC RESULTS

被引:17
作者
HINSHAW, G
BENNETT, CL
KOGUT, A
机构
[1] Hughes STX Corporation, Lab. for Astronomy and Solar Physics, NASA/GSFC, Greenbelt
[2] Code 685, Lab. for Astronomy and Solar Physics, NASA/GSFC, Greenbelt
关键词
COSMIC MICROWAVE BACKGROUND; COSMOLOGY; OBSERVATIONS;
D O I
10.1086/187774
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have simulated full-sky maps of the cosmic microwave background (CMB) anisotropy expected from cold dark matter (CDM) models at 0.5-degrees and 1.0-degrees angular resolution. Statistical properties of the maps are presented as a function of sky coverage, angular resolution, and instrument noise, and the implications of these results for observability of the Doppler peak are discussed. The rms fluctuations in a map are not a particularly robust probe of the existence of a Doppler peak; however, a full correlation analysis can provide reasonable sensitivity. We find that sensitivity to the Doppler peak depends primarily on the fraction of sky covered, and only secondarily on the angular resolution and noise level. Color plates of the simulated maps are presented to illustrate the anisotropies.
引用
收藏
页码:L1 / L4
页数:4
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