Timeline for What are the challenges for the building and data analysis of the CHIME telescope?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 19, 2019 at 7:52 | vote | accept | questionhang | ||
| Jan 14, 2019 at 14:40 | comment | added | uhoh | @questionhang to "why didn't they build it before", these projects take a long time, from initial design, proposal, final design, funding etc... maybe this took ten years. | |
| Jan 14, 2019 at 14:29 | comment | added | questionhang | Yes, you are right. But what is the real obstacle? The input and output is not a linear relation. | |
| Jan 14, 2019 at 14:22 | comment | added | uhoh | @questionhang I don't think it's so easy to say "the main problem". It's an optimization problem and you have to look at how every aspect changes as you change the size. | |
| Jan 14, 2019 at 14:21 | comment | added | questionhang | updating CHIME, better localization for every FRB, and multi-wavelength follow-ups for repeated FRBs, problem solved! | |
| Jan 14, 2019 at 14:16 | comment | added | questionhang | so the main problem is computation power? As long as we have better computers..... But it seems people are pessimistic about the localization in the near future. At least it is not easy. | |
| Jan 14, 2019 at 14:13 | history | edited | uhoh | CC BY-SA 4.0 |
added 1109 characters in body
|
| Jan 14, 2019 at 14:08 | comment | added | uhoh | @questionhang About 4, I think that isn't special, it probably just comes out of the optimization somehow. I'm going to add a new section now, hang on... | |
| Jan 14, 2019 at 14:07 | comment | added | uhoh | @questionhang that's a lot of questions and they are very good questions! If you made the cylinders longer and you kept the same antenna spacing, you'd need a much bigger, more expensive computer to do the interferometry, it would cost more and take longer to fund and build. If you kept the same number of antennas but made the cylinders longer, the spacing would become many wavelengths and then solving for the location would become a challenge, there would be ambiguities due to multiple orders (like a large-pitch, high-order diffraction grating). | |
| Jan 14, 2019 at 14:02 | comment | added | questionhang | 2 quick questions first. you mean the hardware is not very difficult and people just designed a new configuration? If we build every cylinder longer and make them not so compact, we would localize FRBs easily? BTW, why is it 4? | |
| Jan 14, 2019 at 13:52 | history | answered | uhoh | CC BY-SA 4.0 |