EPISODE · Oct 9, 2025 · 21 MIN
JWST가 파헤친 허블 장력 우주 팽창 속도 논쟁
from misc. LM · host m.s.s.
JWST의 우수한 적외선 해상도는 거리 측정에 사용되는 세페이드 변광성의 측광 정밀도를 크게 향상시키며, 특히 HST 데이터에서 노이즈의 주요 원인이었던 별들 간의 혼잡 문제가 허블 장력의 원인이라는 가설을 높은 신뢰도로 기각합니다. 한 연구는 새로운 JWST 데이터가 표준 우주 모델이 여전히 유효함을 시사하며, HST 측정값이 정확함을 확인하고 국부적 허블 상수를 약 70.4km/s/Mpc로 측정하여 초기 우주 값과 통계적으로 일치한다고 제안하는 반면, 다른 연구는 JWST가 HST 측정의 정확성을 확증하면서도 허블 장력의 미스터리가 여전히 남아 있음을 강조합니다.
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JWST가 파헤친 허블 장력 우주 팽창 속도 논쟁
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