咆哮
发表于 2025-3-25 04:34:42
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盟军
发表于 2025-3-25 08:06:45
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无礼回复
发表于 2025-3-25 11:54:42
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Slit-Lamp
发表于 2025-3-25 18:37:13
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明智的人
发表于 2025-3-25 22:07:07
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Dysarthria
发表于 2025-3-26 03:28:25
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WITH
发表于 2025-3-26 07:05:42
Holger J. Schmidt,Carsten Baumgarthand mass composition of cosmic rays are reviewed. The enigma set by the existence of ultra high-energy cosmic rays remains and ideas proposed to explain it are discussed. Progress with the construction of the Pierre Auger Observatory and plans for the EUSO space instrument are outlined.
ablate
发表于 2025-3-26 10:02:54
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弯腰
发表于 2025-3-26 15:28:47
https://doi.org/10.1007/978-3-658-39568-1ime. In the soft (0.5-2 keV) band more than 90% of the XRB flux has been resolved using 1.4 Msec observations with ROSAT and recently 1-2 Msec Chandra observations and 100 ksec observations with XMM-Newton . In the harder (2-10 keV) band a similar fraction of the background has been
幻影
发表于 2025-3-26 18:16:34
Astronomy, Cosmology and Fundamental Physics978-3-540-44851-8Series ISSN 1431-2433 Series E-ISSN 1611-6143