X-rays from Eridanusとは 意味・読み方・使い方

"What are the sources of X-rays from Eridanus?" The X-ray astronomy of the constellation Eridanus focuses on answering this question. The Earth is irradiated by X-rays from all of the constellations. The Earth's atmosphere is opaque to X-rays so that none reach the surface. X-radiation, in the form of X-rays, span 3 decades in wavelength ~(8 nm - 8 pm), frequency ~(50 PHz - 50 EHz) and energy ~(0.12 - 120 keV). In terms of temperature, 1 eV = 11,604 K. X-rays (0.12 to 120 keV) correspond to 1.39 x 10⁶ (1.39 MK) to 1.39 x 10⁹ K (1.39 GK). X-ray generation occurs by many processes.