Measuring the cosmic X-ray background accurately

被引：4

作者：

Li, Hancheng ^{[1
]}

Walter, Roland ^{[1
]}

Produit, Nicolas ^{[1
]}

Hubert, Fiona ^{[2
]}

机构：

[1] Univ Geneva, Dept Astron, 16 Chemin Ecogia, CH-1290 Versoix, Switzerland

[2] EPF Ecole Ingn E S, 55 Ave President Wilson, FR-94230 Cachan, France

来源：

EXPERIMENTAL ASTRONOMY | 2023年 / 56卷 / 01期

基金：

瑞士国家科学基金会;

关键词：

Instrumentation center dot Detectors; X-rays center dot Diffuse background; ACTIVE GALACTIC NUCLEUS; LUMINOSITY FUNCTION; ABSORBED AGNS; CHANDRA; SPECTRUM; EVOLUTION; SCINTILLATORS; POPULATION; INTENSITY; EMISSION;

D O I：

10.1007/s10686-023-09896-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Synthesis Synthesis models of the diffuse Cosmic X-ray Background (CXB) suggest that it can be resolved into discrete sources, primarily Active Galactic Nuclei (AGNs). Measuring the CXB accurately offers a unique probe to study the AGN population in the nearby Universe. Current hard X-ray instruments suffer from the time-dependent background and cross-calibration issues. As a result, their measurements of the CXB normalization have an uncertainty of the order of similar to 15%. In this paper, we present the concept and simulated performances of a CXB detector, which could be operated on different platforms. With a 16-Unit CubeSat mission running for more than two years in space, such a detector could measure the CXB normalization with similar to 1% uncertainty.

引用

页码：141 / 170

页数：30

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