Timeline for Alma correlator for visible light and for space based telescopes?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Apr 20, 2014 at 23:46 | history | tweeted | twitter.com/#!/StackPhysics/status/458028971868045312 | ||
| Feb 14, 2014 at 15:45 | comment | added | Kyle Kanos | Related (albeit unanswered) post: physics.stackexchange.com/questions/41687/… | |
| Feb 14, 2014 at 15:43 | history | edited | Kyle Kanos | CC BY-SA 3.0 |
merged link with text, added extra information, corrected minor spelling
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| Feb 14, 2014 at 14:07 | comment | added | Eiver | Or is it just an engineering challenge which is in principle possible if someone had enough money to do it? My second question is Would we benefit from such an instrument or would we never reach a diffraction limit for some other reason, so there is no point to build something like that? | |
| Feb 14, 2014 at 14:04 | comment | added | Eiver | I am saying that normally you would do interferometry in analog way, that is using light itself. AFAIK Alma is first recording the signal and digitizing it. Once in the form of digital data it can be stored or processed later. I imagine two satellites going around the sun opposite of each other on orbit slightly higher than Earths orbit. Periodic interrupts due to Sun in the way would be no problem as data might be downloaded later. The interferometry part would be done on Earth after downloading data from telescopes. My question is: Is all of that impossible due to physics? | |
| Feb 14, 2014 at 13:27 | comment | added | chase | It is very difficult for us to communicate with objects on the opposite side of the sun. For example we'll loose communication with the SOHO spacecraft for several months while it passes behind the sun. If you had a ring-network of satellites orbiting the sun, one could theoretically route communications around the sun by using the visible satellites as relays. | |
| Feb 14, 2014 at 12:52 | comment | added | Carl Witthoft | What's the question? AFAIK that's not a simulator: it's a data processor. Anyway, yes, there are Adaptive Optic systems which adjust multi-telescope inputs to do path-length-matching at the receiver, if that's what you're after. | |
| Feb 14, 2014 at 8:50 | history | asked | Eiver | CC BY-SA 3.0 |