用于伽马射线观测的 DAMPE PSF 校准

IF 4.2 3区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Astroparticle Physics Pub Date : 2024-10-18 DOI:10.1016/j.astropartphys.2024.103058

Kai-Kai Duan , Zhao-Qiang Shen , Zun-Lei Xu , Wei Jiang , Xiang Li

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引用次数: 0

摘要

暗物质粒子探测器（DAMPE）致力于探索关键科学领域，包括暗物质间接探测、宇宙射线物理学和伽马射线天文学。这项研究介绍了一种校准 DAMPE 点展函数（PSF）的新方法，专门用于提高伽马射线观测的准确性。通过利用脉冲星和明亮的活动星系核（AGN）附近区域的数据，我们改进了点展宽函数校准过程，从而提高了角度分辨率，与我们的观测数据非常吻合。这一进步大大提高了 DAMPE 的伽马射线探测精度，从而有助于实现其在暗物质探测和伽马射线天文学方面的任务目标。

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PSF calibration of DAMPE for gamma-ray observations

The DArk Matter Particle Explorer (DAMPE) is dedicated to exploring critical scientific domains including the indirect detection of dark matter, cosmic ray physics, and gamma ray astronomy. This study introduces a novel method for calibrating the Point Spread Function (PSF) of DAMPE, specifically designed to enhance the accuracy of gamma-ray observations. By leveraging data from regions near pulsars and bright Active Galactic Nuclei (AGNs), we have refined the PSF calibration process, resulting in an improved angular resolution that closely matches our observational data. This advancement significantly boosts the precision of gamma-ray detection by DAMPE, thereby contributing to its mission objectives in dark matter detection and gamma ray astronomy.

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来源期刊

Astroparticle Physics 地学天文-天文与天体物理

CiteScore

8.00

自引率

2.90%

发文量

审稿时长

79 days

期刊介绍： Astroparticle Physics publishes experimental and theoretical research papers in the interacting fields of Cosmic Ray Physics, Astronomy and Astrophysics, Cosmology and Particle Physics focusing on new developments in the following areas: High-energy cosmic-ray physics and astrophysics; Particle cosmology; Particle astrophysics; Related astrophysics: supernova, AGN, cosmic abundances, dark matter etc.; Gravitational waves; High-energy, VHE and UHE gamma-ray astronomy; High- and low-energy neutrino astronomy; Instrumentation and detector developments related to the above-mentioned fields.