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LIGO can isolate itself from seismic backgrounds, but it has no artificial gravitational-wave foregrounds. (Yes, Newtonian Noise is a concern for future generat
by ISL 6y ago
LIGO can isolate itself from seismic backgrounds, but it has no artificial gravitational-wave foregrounds. (Yes, Newtonian Noise is a concern for future generations, but it is expected to be modeled and subtracted well-enough.)
Arrays like Starlink are a persistent foreground for the big radio telescopes. SKA and the like are in the Outback for a reason, but for this there is no escape.
- golem14 6y agoI'd expect that starlink could be disabled within a few hundred miles around green banks etc. Would that help?
- godelski 6y agoTypically for high resolution images you actually take multiple images. So it would be more work, but you can definitely remove foreground objects. This is like how you can take a bunch of photos of a landscape with people moving around in it and remove all the people by just looking at what isn't changing in the images. I'm not saying it is easy, but it is definitely possible.