Radio astronomy
射电望远镜的sensitivity
- 射电望远镜的灵敏度的表征的单位通常是m^2/K,为什么和Jy有什么关系?
- 信噪比探测公式,详见 [Radiometer_Equation | https://casper.astro.berkeley.edu/astrobaki/index.php/Radiometer_Equation]
$$\frac{S}{N} = \frac{T_{src}}{T_{rms}} = \frac{T_{src}}{T_{sys}} \sqrt{\tau \Delta\nu}$$