Question
Intrinsic alignment causes correlation patterns that get conflated with the presence of this phenomenon. For 10 points each:
[10h] Name this phenomenon whose "weak" form is observed from shared properties of adjacent bodies and whose "micro" form is observed as a brightening.
ANSWER: gravitational lensing [accept weak gravitational lensing or weak lensing or microlensing]
[10e] The cosmic shear from weak gravitational lensing is computed by measuring the extent to which faraway galaxies deviate from this shape. Most large galaxies are either spirals or have this shape.
ANSWER: elliptical [or ellipse]
[10m] Weak gravitational lensing converts this field's E-mode polarization into B-mode polarization. The Planck satellite observed this 2.7-kelvin blackbody.
ANSWER: CMBR [or cosmic microwave background radiation]
<Science - Other Science - Astronomy>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2025 PACE NSC | 06/07/2025 | Y | 35 | 15.14 | 91% | 57% | 3% |