Here are ten questions about observational radio astronomy that are either unanswered (eight) or have no accepted answer (two). These are selected from my own questions only so far, there may be others as well. Please feel free to add other examples!
Question: How can we can bring questions about radio astronomy observational techniques to the eyes of radio telescopists? I'm thinking a note in a radio astronomy newsletter, or tweet with this list or link to this meta question by some radio astronomer or group, or similar?
We get great support for optics questions for optical telescopy, but not so much at the longer wavelengths.
Bounties I've added and automatic tweeeting indicated
currently no answers:
- Did Arecibo's secondary optics compensate aberrations when viewing farther away from vertical? +3/-0
- How do radio astronomers avoid having their receivers burned out by ground-imaging radar from satellites? +6/-0 tweeted (https://twitter.com/StackAstronomy/status/1164190572900470784)**
- How does Canada's radiotelescope CHIME manage polarization-dependent apodization of the fast f/0.25 optics? +1/-0
- Is there work underway to push the long baseline capabilities of the Event Horizon Telescope to sub-millimeter wavelengths? +6/-0
- How did Arecibo make radar images of ice on Mercury's poles? +3/-0 tweeted
answers but none accepted:
Answered and accepted since this was originally posted:
- What is a radio "homology telescope" and is the 500m dish in China one? +8/-0 **[tweeted]
- Do ASKAP and ALMA have "fast dump" interferometric modes? Can they see and perhaps report Fast Radio Bursts in real time? +4/-0
- Hypothetical CMB space telescope design problem, received power from extended thermal source versus receiver front end NEP? +0/-0
- What telescope might this be a model of, with Sir Fred Hoyle? +1/-0