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    神秘雪茄狀天體在太空中翻轉飛行 英媒:不是外星飛船

    2019-07-03 06:35:01 參考消息網

    參考消息網7月3日報道 英媒稱,在研究了2017年發現的一個快速穿行太陽系、名為“奧陌陌”星的神秘雪茄形天體的性質后,天文學家們仍然不確定如何對其進行分類,但他們相信它不是外星飛船。

    據路透社7月1日報道,“奧陌陌”星的奇怪形狀和運行方式曾令一些科研人員懷疑它是某種可能在探索宇宙的外星技術——“奧陌陌”星是人們發現的首個來自另一個恒星系統穿過太陽系的天體。但在仔細研究了這些數據后,一個國際研究團隊寫道:“我們沒有發現支持外星人解釋的令人信服的證據。”

    報道稱,科研人員從2017年10月14日到2018年1月2日期間對淡紅色的“奧陌陌”星進行跟蹤觀測,之后它的光亮變得過于微弱,用最高倍的望遠鏡也探測不到。據估計,“奧陌陌”星長達半英里(約合800米),在太空中翻轉飛行。

    馬里蘭大學天文學家、發表在《自然·天文學》的該研究聯合領導者馬修·奈特說:“我們的主要發現是,‘奧陌陌星的特性符合自然起源,外星人的解釋是沒有根據的。”

    奈特還說:“是的,如果它突然出現難以解釋的翻轉,肯定會值得進一步探索。”“奧陌陌”星最先是由夏威夷大學的“泛星計劃”天文望遠鏡發現的。“奧陌陌”在夏威夷土著語言中意為來自遠方的信使。

    奈特說,很難把“奧陌陌”星歸為人們熟悉的彗星或小行星等分類。

    奈特說:“我們試著避免將它歸為某個分類,而傾向于把它籠統地稱為‘天體。”

    奈特還說:“簡單來說,小行星是石質的,沒有冰,而彗星是巖石和冰的混合物,即所謂的‘臟雪球。”

    報道稱,“奧陌陌”星不知什么原因從遙遠的恒星系中被彈出,穿越星際空間和太陽系飛行。它略微偏離了一條純粹由太陽引力來解釋的路線,一些研究人員說,這顯然是因為天體表面極少量氣體的排放造成的,排放氣體是彗星的表現,不過其排放的量太小,難以探測到。它沒有彗星特有的塵尾或氣體噴流。

    研究人員寫道,對“奧陌陌”星的一個“直接解釋是,這是一顆微行星”——即在遙遠的恒星系中形成的一個行星構件或者行星碎片。

    “奧陌陌”星的構成成分仍是一個謎,包括它是否只是巖石還是包括一些金屬或其他成分。它目前位于土星之外,正在沖出太陽系。(編譯/胡溦)

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