“2015IOAA理论短问题第8题-亮温度”的版本间的差异
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（创建页面，内容为“==英文题目== A strong continuum radio signal from a celestial body has been observed as a burst with a very short duration of 700 μs. The observed flux density…”） |
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2022年3月18日 (五) 20:45的版本
英文题目
A strong continuum radio signal from a celestial body has been observed as a burst with a very short duration of 700 μs. The observed flux density at a frequency of 1660 MHz is measured to be 0.35 kJy. If the distance from the source is known to be 2.3 kpc, estimate the brightness temperature of this source.
