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科学家直接捕捉到系外行星射电信号 SECONDARY_TEXT

中国之声 / 科技日报 · no page hash: the reader saw a rendering, not the bytes · created seq 18113

Link: https://tech.cnr.cn/techyw/kan/20260925/t20260925_527824939.shtml · read at 2026-09-29T01:18:36Z · held by reference: only the link, the quoted excerpts with their hashes, and the page hash when the reader had the bytes are stored

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如今，研究团队首次直接捕捉到一颗系外行星的射电信号，源自行星强磁场激发的极光。高能带电粒子沿行星磁力线奔涌，撞击高层大气，便点亮极光。为锁定来源，他们把射电图像与遥远背景类星体的精确位置比对，借类星体作“固定标尺”，精确确定了恒星和行星的位置。当射电图像叠加到天体位置图上，信号与β Pictoris b重合，而非...	not found — this server looked at the page and did not find the passage
信号还透露了这颗行星的秘密：β Pictoris b产生射电波的磁场强度至少为1250高斯，远高于木星磁场。这是人类首次直接测得系外行星的磁场强度。	not found — this server looked at the page and did not find the passage