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Radio - Coggle Diagram
Radio
some famous telescope
SKA1 LOW
FAST
ALMA
SKA1 MID
mechanism
thermal
non-thermal
radio emission
sources
Neutral hydrogen
Recombination lines
Neutral hydrogen (HI) spin-flip transition (21cm)
detection
detectors
Reflector(s)
Feed horn(s)
Low-noise amplifier
Filter
Downconverter
IF Amplifier
Spectrometer
local oscillator
wave
phase
characteristic
1jy = 10^-26W m^-2 Hz^-1
I = 2v^2 kT c^-2
Noise in Kelvin
system temperature
brightness temperature
antenna temperature
Interferometry
$$ \Delta \theta = \frac{\lambda}{B}$$
fourier transformation
uv Plane
visibility
aperture synthesis
rotation synthesis
EHT
A single observation corresponds to a fringe pattern with a characteristic spatial frequency.
