论文标题
在SRG任务的背景下，腐烂的无菌中微子暗物质的相关分析
Correlation Analysis of Decaying Sterile Neutrino Dark Matter in the Context of the SRG Mission
论文作者
论文摘要
我们根据星系的2MRS目录，提供与暗物质衰减和星系空间分布相关的特征的相关分析。签名数据分析在当前和未来的观察和宇宙学约束的背景下起着重要作用。注意在分析Spectr-Roentegn-Gamma（SRG）任务的观察结果时，可以获得腐烂无菌中微子的约束。我们研究了暗物质和星系的相关光谱，这些光谱可以为Erosita望远镜获得，也可以为ART-XC望远镜获得第一次获得。分析均在纵横差近似的框架内和扩展liber近似的框架内进行，这使得可以更准确地研究小型多物区域的功率谱。我们在两种方法中都计算功率谱，并检查多物的不同范围对无菌中微子参数的限制的贡献。
We provide a correlation analysis of signatures associated with traces of the dark matter decay and the galaxy spatial distribution according to the 2MRS catalog of galaxies. Signature data analysis plays an important role in the context of current and future observations and cosmological constraints. Attention is paid to the constraints that can be obtained for decaying sterile neutrinos when analyzing observations in the context of the Spectr-Roentegn-Gamma (SRG) mission. We study the correlation spectra of dark matter and galaxies, which can be obtained both for the eROSITA telescope and for the first time for the ART-XC telescope. The analysis is carried out both within the framework of the Limber approximation and within the framework of the extended Limber approximation, which makes it possible to more accurately study the power spectra in the region of small multipoles. We calculate the power spectra in both approaches and examine the contribution of different ranges of multipoles to the resulting constraints on sterile neutrino parameters.
