亚洲аv天堂无码,久久aⅴ无码一区二区三区,96免费精品视频在线观看,国产2021精品视频免费播放,国产喷水在线观看,奇米影视久久777中文字幕 ,日韩在线免费,91spa国产无码

      Astronomers find rare star system may produce gamma-ray burst: Aussie research

      Source: Xinhua| 2018-11-20 11:40:51|Editor: Li Xia
      Video PlayerClose

      SYDNEY, Nov. 20 (Xinhua) -- Astronomers from the University of Sydney have identified a "nearby" star system as having the potential to produce a gamma-ray burst, one of the most energetic events in the universe, second only to the big bang.

      According to a research published on Tuesday, Aussie scientists along with international colleagues revealed that they have located the rare system just 8,000 light years from earth, the first of its type to be found in our galaxy.

      "We knew immediately that we have found something quite exceptional, the luminosity across the spectrum from the radio to the infrared was off the charts," lead author Dr. Joe Callingham from the Netherlands Institute for Radio Astronomy said.

      The system was nicknamed Apep. Two of Apep's stars are of the Wolf-Rayet variety meaning they are massive and reaching the end of their life.

      Those stars could explode into supernovae at any time, and could result in a cataclysmic gamma-ray event combining with the system's extreme conditions.

      "The rapid rotation puts Apep into a whole new class," study co-author Dr. Benjamin Pope from New York University said.

      "Normal supernovae are already extreme events but adding rotation to the mix can really throw gasoline on the fire," Benjamin said.

      Scientists said that a gamma-ray burst from one of Apep's stars would have the capacity to strip the earth of its Ozone layer, while it appears not to be aimed at us at the moment.

      "Ultimately, we can't be certain what the future has in store for Apep," research group leader Professor Tuthillat from University of Sydney said.

      "The system might slow down enough so it explodes as a normal supernova rather than a gamma-ray burst. However, in the meantime, it is providing astronomers a ringside seat into beautiful and dangerous physics that we have not seen before in our galaxy," the group leader said.

      TOP STORIES
      EDITOR’S CHOICE
      MOST VIEWED
      EXPLORE XINHUANET
      010020070750000000000000011100001376192741
      主站蜘蛛池模板: 国产一区二区三区播放| 色乱码一区二区三区在线| 69堂在线无码视频2020| 石林| 亚洲AV无码乱码1区久久| 亚洲国产欧美久久香综合| 久久精品色一情一乱一伦| 亚洲区福利视频免费看| 成人影院激情av在线| 国产一级二级三级视频| 91亚洲欧洲日产国码精品| 99精品国产闺蜜国产在线闺蜜| 宝贝几天没c你了好爽菜老板| 中日韩欧美成人免费播放| 国产精品国产三级国产三不| 欧美激情精品久久| 亚洲精品免费一二三区| 成人av中文字幕在线| 久久久久无码中文字幕| 国产一级人片内射视频播放| 日中文字幕在线| 精品视频专区| 亚洲综合综合在线| 亚洲国产成人久久77| 五月婷婷六月丁香动漫| 蜜桃一区二区三区在线看| 国产精品自拍一区视频在线观看| 久久精品国产亚洲一区二区| 亚洲精品一品二品av| 天堂俺去俺来也www色官网| 美腿丝袜亚洲综合第一页| 开心五月婷婷丁香综合| 91综合久久婷婷久久| 男人j进入女人j内部免费网站| 精品一区二区三区中文字幕| 亚洲中文字幕第二十三页 | 日韩激情电影一区二区在线| 亚洲欧美综合精品成| 国产免费mv大片人人电影播放器| 亚洲一区二区三区久久综合 | 偷拍精品一区二区三区|