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【摘 要】
：
We present a strong correlation of the gamma-ray (above 100 MeV) mean spectral indices aγ and X-ray (1 keV)mean spectral indices cX for 34 gamma-ray-loud blaza
【机 构】
：
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China；Department of P
【出 处】
：
中国物理(英文版)
【发表日期】
：
2001年6期
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