Question
In 2020, a 13-billion-year old one of these objects named Pōniuā‘ena (“PO-nee-wa-EN-uh”) was discovered with a 1.5-billion-solar-mass black hole at its center. For 10 points each:
[10e] Name these very bright active galactic nuclei, whose common name comes from a shortening of “quasi-stellar radio source.”
ANSWER: quasars
[10h] Quasar-host galaxies are often contrasted with these other active galaxies, which have an active nucleus but also a clearly detectable host. These galaxies named for an American astronomer come in Type I and Type II kinds.
ANSWER: Seyfert galaxies
[10m] Twin Quasar 55 was the first observation of this phenomenon, which can lead to the formation of Einstein rings if a source, observer, and intermediate body are all aligned.
ANSWER: gravitational lensing [accept strong gravitational lensing or weak gravitational lensing]
<Other Science>
Summary
| 2024 ACF Winter at UC Berkeley | 2024-11-16 | Y | 3 | 20.00 | 100% | 100% | 0% |
| 2024 ACF Winter at Clemson | 2024-11-16 | Y | 8 | 16.25 | 100% | 38% | 25% |
| 2024 ACF Winter at Ohio State | 2024-11-16 | Y | 7 | 17.14 | 100% | 43% | 29% |
| 2024 ACF Winter at Online | 2024-11-16 | Y | 8 | 16.25 | 88% | 63% | 13% |
| 2024 ACF Winter at UBC | 2024-11-16 | Y | 3 | 16.67 | 100% | 33% | 33% |
| 2024 ACF Winter at Central Florida | 2024-11-16 | Y | 5 | 14.00 | 100% | 40% | 0% |
| 2024 ACF Winter at Oxford | 2024-11-16 | Y | 11 | 17.27 | 91% | 64% | 18% |
| 2024 ACF Winter at Brandeis | 2024-11-16 | Y | 10 | 14.00 | 100% | 30% | 10% |
Data
| Imperial B | Birmingham | 10 | 0 | 0 | 10 |
| Bristol B | LSE B | 10 | 0 | 10 | 20 |
| Oxford A | Cambridge B | 10 | 10 | 10 | 30 |
| Cambridge C | Cambridge A | 10 | 0 | 10 | 20 |
| Cambridge D | Southampton | 10 | 0 | 10 | 20 |
| Edinburgh | Durham B | 10 | 0 | 10 | 20 |
| LSE A | Bristol A | 10 | 0 | 0 | 10 |
| Manchester | Imperial A | 10 | 10 | 10 | 30 |
| Oxford B | Durham A | 10 | 0 | 10 | 20 |
| Warwick A | Southampton A | 10 | 0 | 0 | 10 |
| Vanderbilt | Warwick B | 0 | 0 | 0 | 0 |