I just noticed that some of the following tag definitions include upper limits on frequency:
- radio: Questions about the part of the electromagnetic spectrum between 10 MHz and 100 GHz.
- radio-telescope: Questions related to the instruments used to perform observations in the radio frequency range (10 MHz to 100 GHz)
- radio-astronomy: Questions about observation performed in the radio frequency range of the electromagnetic spectrum (between 10 MHz and 100 GHz).
I've just asked Is there work underway to push the long baseline capabilities of the Event Horizon Telescope to sub-millimeter wavelengths? which links to How does ALMA produce stable, mutually coherent ~THz local oscillators for all of their dishes?.
Apparently per the Tag Wiki excerpts my questions are not about radio-astronomy, radio-telescopes or radio because they are about frequencies above 100 GHz.
- Should we update those definitions and remove the 100 GHz hard limits?
- Considering that these days astronomers will comfortably use the word "light" in the context of what has been traditionally called radio astronomy and there is instrumental capability on Earth or in space at so many points in the radio, millimeter wave, far infrared and infrared realms, how should tags for these best be distinguished going forward?
- What is the radio tag for? Is it redundant?
radiofrom Is there work underway to push the long baseline capabilities of the Event Horizon Telescope to sub-millimeter wavelengths? $\endgroup$