银河系有多“重”?天文学家:约太阳1.5万亿倍

中新网3月10日电 归纳报导,日前,天文学家表明,他们透过包括暗物质分量的新材料,首度准确算出银河系的质量,称其约是太阳质量的1.5万亿倍。 据报导,当地时间3月7日,在美国宇...


  中新网3月10日电 归纳报导,日前,天文学家表明,他们透过包括暗物质分量的新材料,首度准确算出银河系的质量,称其约是太阳质量的1.5万亿倍。

  据报导,当地时间3月7日,在美国宇航局与欧洲太空总署盖亚太空使命的协作中,一群专家计算出银河系的质量约是太阳质量的1.5万亿倍。据从前猜测,银河系的质量是太阳质量的5000亿到3万亿倍。

  总部设在德国的欧洲南边天文台的华金斯表明:“咱们无法直接找到暗物质,这就是为何当今对银河系的质量存在不确定性,你无法准确丈量看不到的东西。”报导称,为了战胜这点,研讨团队丈量了恒星团的速度。

  剑桥大学天文学研讨所的伊凡斯表明:“一个星系的质量愈大,其恒星团在引力效果下移动速度就愈快。”

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