Question
For a system with N instruments, there are N times N minus 1 over two values of this vector quantity, which twists as the Earth rotates. For 10 points each:
[10m] Name this quantity. Because angular resolution is proportional to wavelength over this quantity, large values of it are preferred in astronomical interferometry.
ANSWER: baseline [accept the distance between telescopes]
[10e] Telescope arrays used in interferometry primarily collect signal from this region of the spectrum. The original name of quasars refers to their emission of this radiation.
ANSWER: radio waves [accept radio astronomy or quasi-stellar radio sources]
[10h] The projection of the baseline vector normal to the line of sight is the argument of this function. Radio telescope arrays convert a measured response function to this function, then use an inverse Fourier transform to infer the underlying brightness distribution.
ANSWER: visibility function
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Summary
| 2023 BHSU @ Northwestern | 02/25/2023 | Y | 6 | 10.00 | 100% | 0% | 0% |
Data
| Chicago A | Maryland B- | 0 | 10 | 0 | 10 |
| Chicago B+ | Epic Games | 0 | 10 | 0 | 10 |
| Northwestern | Amartya Senpai Notice Me | 0 | 10 | 0 | 10 |
| OSU | Michigan | 0 | 10 | 0 | 10 |
| Mojo Shojo | Purdue | 0 | 10 | 0 | 10 |
| Illinois A+ | WUSTL | 0 | 10 | 0 | 10 |