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arXiv 2010.03477astro-ph.HEastro-ph.IM
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SRG上的eROSITA X射线望远镜

The eROSITA X-ray telescope on SRG

P. Predehl, R. Andritschke, V. Arefiev, V. Babyshkin, O. Batanov, W. Becker, H. Böhringer, A. Bogomolov, T. Boller, K. Borm, W. Bornemann, H. Bräuninger, M. Brü… 展开作者

P. Predehl, R. Andritschke, V. Arefiev, V. Babyshkin, O. Batanov, W. Becker, H. Böhringer, A. Bogomolov, T. Boller, K. Borm, W. Bornemann, H. Bräuninger, M. Brüggen, H. Brunner, M. Brusa, E. Bulbul, M. Buntov, V. Burwitz, W. Burkert, N. Clerc, E. Churazov, D. Coutinho, T. Dauser, K. Dennerl, V. Doroshenko, J. Eder, V. Emberger, T. Eraerds, A. Finoguenov, M. Freyberg, P. Friedrich, S. Friedrich, M. Fürmetz, A. Georgakakis, M. Gilfanov, S. Granato, C. Grossberger, A. Gueguen, P. Gureev, F. Haberl, O. Hälker, G. Hartner, G. Hasinger, H. Huber, L. Ji, A. v. Kienlin, W. Kink, F. Korotkov, I. Kreykenbohm, G. Lamer, I. Lomakin, I. Lapshov, T. Liu, C. Maitra, N. Meidinger, B. Menz, A. Merloni, T. Mernik, B. Mican, J. Mohr, S. Müller, K. Nandra, V. Nazarov, F. Pacaud, M. Pavlinsky, E. Perinati, E. Pfeffermann, D. Pietschner, M. E. Ramos-Ceja, A. Rau, J. Reiffers, T. H. Reiprich, J. Robrade, M. Salvato, J. Sanders, A. Santangelo, M. Sasaki, H. Scheuerle, C. Schmid, J. Schmitt, A. Schwope, A. Shirshakov, M. Steinmetz, I. Stewart, L. Strüder, R. Sunyaev, C. Tenzer, L. Tiedemann, J. Trümper, V. Voron, P. Weber, J. Wilms, V. Yaroshenko

摘要:

eROSITA(带有成像望远镜阵列的扩展伦琴巡天)是光谱伦琴伽马(SRG)任务的主要仪器,该任务于2019年7月13日从拜科努尔航天发射场成功发射。在仪器调试以及随后的校准和性能验证阶段之后,eROSITA于2019年12月13日开始对整个天空进行调查。到2023年底,将完成对天球的8次完整扫描,每次持续6个月。在这一方案结束时,eROSITA在软X射线波段(0.2- 2.3keV)的全天巡天将比ROSAT全天巡天灵敏约25倍,而在硬波段(2.3- 8 keV),它将提供有史以来第一次真正的天空成像巡天。eROSITA的设计驱动科学是探测红移高达$z>1$的星系团的大样本,以研究宇宙的大尺度结构,并测试包括暗能量在内的宇宙学模型。此外,eROSITA预计将产生数百万个AGN的样本,包括模糊的物体,彻底改变我们对超大质量黑洞演化的看法。这次巡天还将提供对广泛的天体物理现象的新见解,包括X射线双星、活动恒星和银河系内的漫射发射。早期观测的结果,其中一些在这里介绍,证实了该仪器的性能是能够履行其科学承诺。在本文中,我们的目的是给出一个简明的描述的仪器,其性能在地面上测量,其在空间中的操作,也是第一个结果,从在轨测量。

英文摘要:

eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the primary instrument on the Spectrum-Roentgen-Gamma (SRG) mission, which was successfully launched on July 13, 2019, from the Baikonour cosmodrome. After the commissioning of the instrument and a subsequent calibration and performance verification phase, eROSITA started a survey of the entire sky on December 13, 2019. By the end of 2023, eight complete scans of the celestial sphere will have been performed, each lasting six months. At the end of this program, the eROSITA all-sky survey in the soft X-ray band (0.2--2.3\,keV) will be about 25 times more sensitive than the ROSAT All-Sky Survey, while in the hard band (2.3--8\,keV) it will provide the first ever true imaging survey of the sky. The eROSITA design driving science is the detection of large samples of galaxy clusters up to redshifts $z>1$ in order to study the large-scale structure of the universe and test cosmological models including Dark Energy. In addition, eROSITA is expected to yield a sample of a few million AGNs, including obscured objects, revolutionizing our view of the evolution of supermassive black holes. The survey will also provide new insights into a wide range of astrophysical phenomena, including X-ray binaries, active stars, and diffuse emission within the Galaxy. Results from early observations, some of which are presented here, confirm that the performance of the instrument is able to fulfil its scientific promise. With this paper, we aim to give a concise description of the instrument, its performance as measured on ground, its operation in space, and also the first results from in-orbit measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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