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亚博手机版网页登陆在蟹状星云辐射精确测量中发挥重要作用

发布者:黄聃发布时间:2021-07-09浏览次数:10

我国高海拔宇宙线观测站(LHAASO拉索)成功测量出蟹状星云辐射的最高能量端能谱,实现了前所未有的超高能区(0.3-1.1拍电子伏)的精确测量,为该能区标准烛光设定了亮度标准。北京时间7月9日《科学》(Science)刊发了这一成果。高海拔宇宙线观测站是7个国家、32个单位共同合作参与的大科学装置项目,已经取得一系列重要研究成果。亚博手机版网页登陆参与研制的水切伦科夫探测器阵列WCDA和地下缪子探测器阵列(KM2A-MD)是其核心探测单元。

tu1:xiezhuangxingyunfushedejiamashexiannengpu,wcdahekm2ajunweilhaasodehexintanceqi。

yabowangyedengluhetanceyuhedianzixueguojiazhongdianshiyanshizi10nianqiankaishichengdanlasuohexintanceqishuiqielunkefutanceqizhenliewcdahedixiamouzitanceqizhenlie(km2a-md)dedachicunguangmintantouyanzhi,yijiwcdadachicunguangmintantouduchudianzixuedeyanzhihegongchengshishigongzuo。

ruguoshuowcdahekm2a-mdshilasuode“yanjing”,dachicunguangmintantoujiushilasuode“shiwangmo”。weilebaozhengtianwenguancedelingminduhenengpuceliangdefanwei,wcdahekm2a-mdfenbieyaoqiudachicunguangmintantouhedianzixuezai3he5.5geshuliangjidedadongtaifanweineijinxinggaojingdudexinhaoduchuheceliang,zheizaiguojiyuzhouxiantanceshiyanzhongshijijutiaozhanxingdegongzuo。yabowangyedengluhetancehehedianzixueguojiashiyanshichenggongdijiejuelezheiyitiaozhan。

tu2:wcdashiyitu,shuichidiweidachicunguangmintantou。wcdatanceqizongmianjiwei7.8wanpingfangmi,baohan3120getanceqidanyuan。meigedanyuanchongman4.4mishenchunshui,chidifangzhidachicunguangmintantou。km2a-mdshejiyuwcdaleisi,you1188gemaizaidixia2.5mishendemianjiwei36pingfangmidedashuichizucheng,chidingfangzhidachicunguangmintantou。

shiyanshilicheng、tangzebo、jiangkundengdailingdeshanshuotanceqiyanjiutuanduifenbiezhenduiwcdahekm2a-mddeshiyanyaoqiu,jingguodaliangmoniyanjiuheshiyanyanzheng,qudeleduoxianghexinjishutupo,yanzhichumanzushiyangexiangyaoqiudedachicunguangmintantou。wcdadedongtaifanweidadaole3geshuliangji,km2a-mddedongtaifanweidadaole5.5geshuliangji。zheishilasuonengzaihenkuandenengliangfanweineishixianjiamashexiannengpujingqueceliangdehexinbaozhang。zaishiyanshideshenducanyuxia,guanjianbujianguangdianbeizengguanshixianleguochanhuabingdadaoguojixianjinshuiping。yanjiutuanduihaiyanzhichuyitaogaoduzidonghuadedachicunguangmintantougaojingduxingnengceliangxitong,duiyanzhidemeigedachicunguangmintantoudexingnengjunjinxinglexizhiyanjiu,baozhenglegongchengdezhilianghejindu。

tu3:wcdadachicunguangmintantouhepiliangxingnengceliangzhuangzhi

xiangmufuzerenanqi、zonggongchengshizhaoleihefuzonggongchengshicaozhedailingdewcdadachicunguangmintantouduchudianzixueyanjiutuanduichenggongwanchenggaixitongdezhengtiyanzhihegongchengshishi,bingwanchengsixiangzhongdajishutupo。yanjiutuanduizhenduiwcdacaiyongguochanxinxing20yingcunmcp pmtdexinfanganchenggongwanchengqianduanduchuasic(zhuanyongjichengdianlu)--pascxinpiandeyanzhiheyouhuasheji(ciqianshijieshangwuyikuanchengshuasicxinpiankemanzucishiyanxuqiu),bingzhengshiyongyulasuogongchengzhong,zheiyeshiwoguozaidaxingyuzhouxianwulishiyanzhongshoupishiyongdezizhuyanzhiasicxinpian。

tu4:zizhushejiwanchengdeqianduandadongtaifanweiduchuasicxinpian—pasc

yijijiyucixinpianyanzhiwanchengdedianzixueyanzhijianzhuang

yabowangyedenglutianwenxuexiyangruizhijiaoshouyezailasuoxiangmuzhongdanrenwulixiediaoweiyuanhuichengyuanhenianqingjuxingtuanziketixiediaoren,zaibencichengguozhongcanyuleshujufenxiheweixiangjieshigongzuo。

随着WCDA和KM2A-MD的持续投入运行,LHAASO拉索将产生越来越多的突破性物理成果。

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(wulixueyuan、hetanceyuhedianzixueguojiazhongdianshiyanshi、keyanbu)


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