Question
RR Lyrae and other variable stars occupy the “instability strip” of this diagram. For 10 points each:
[10e] Identify this diagram that plots stars based on their properties and is named after two astronomers. Main sequence stars occupy the top left to bottom right of this diagram.
ANSWER: Hertzsprung–Russell diagram [or HR diagram]
[10m] Either absolute magnitude or this quantity is plotted against temperature on the Hertzsprung–Russell diagram.
ANSWER: luminosity [prompt on L]
[10h] This path on the Hertzsprung–Russell diagram describes [emphasize] low-mass infant stars that decrease in luminosity over time but do not change temperature.
ANSWER: Hayashi track
<Other Science>
Summary
| 2023 ACF Winter @ Columbia | 11/11/2023 | Y | 9 | 23.33 | 100% | 89% | 44% |
Data
| Columbia A | Haverford | 10 | 10 | 10 | 30 |
| Columbia B | Rowan A | 10 | 10 | 0 | 20 |
| Princeton A | Columbia C | 10 | 10 | 10 | 30 |
| Cornell C | Penn A | 10 | 0 | 10 | 20 |
| NYU A | Bard A | 10 | 10 | 0 | 20 |
| Rutgers A | Yale B | 10 | 10 | 10 | 30 |
| Princeton B | Rutgers B | 10 | 10 | 0 | 20 |
| Vassar | Penn B | 10 | 10 | 0 | 20 |
| Yale A | Yale C | 10 | 10 | 0 | 20 |