科技日報訊 （記者趙漢斌）雙白矮星係統是星係中重要的引力波源。記者10月23rihuoxi，zhongguokexueyuanyunnantianwentaiyanjiurenyuanjinriyanjiuleshuangyangnaibaiaixingbinghehoudeyanhua，faxianzheleitiantideyanhuajiejuyubinghehouchanshengdeneibuyangnaihuoyandechuanbozhuangtaimiqiexiangguan。xiangguanyanjiufabiaozai《皇家天文學會月刊》上。

shuangxingxitongshiliangkeraozhegonggongzhixinzhuandongdehengxing。chuyushuangxingxitongzhongdeliangkebaiaixing，huitongguoyinlibofushesunshijiaodongliangcongerzuizhongfashengbinghe。shuangbaiaixingxitongbujinshixingxizhongzhongyaodeyinliboyuan
，dazhiliangdeshuangbaiaixingxitonghaiyuIa型超新星、電子俘獲型超新星、毫秒脈衝星等重要天體密切相關，因此研究雙白矮星並合具有重要意義。但此前，對於雙氧氖白矮星並合後的演化結局尚不明確。

為此，雲南天文台助理研究員吳程遠、研yan究jiu員yuan王wang博bo及ji其qi合he作zuo者zhe一yi道dao，構gou建jian了le相xiang關guan恒heng星xing演yan化hua模mo型xing並bing研yan究jiu了le其qi演yan化hua過guo程cheng。研yan究jiu人ren員yuan發fa現xian
，這zhe類lei雙shuang白bai矮ai星xing並bing合he後hou會hui迅xun速su觸chu發fa氧yang氖nai點dian燃ran，並bing形xing成cheng向xiang內nei傳chuan播bo的de火huo焰yan。演yan化hua過guo程cheng中zhong
，並bing合he天tian體ti會hui逐zhu漸jian朝chao著zhe巨ju星xing支zhi膨peng脹zhang
，從cong而er演yan化hua為wei巨ju星xing，隨sui後hou其qi演yan化hua結jie局ju與yu並bing合he天tian體ti內nei部bu火huo焰yan的de傳chuan播bo狀zhuang態tai密mi切qie相xiang關guan。當dang對dui流liu邊bian界jie混hun合he過guo程cheng不bu影ying響xiang火huo焰yan時shi
，火huo焰yan會hui在zai20年內傳播至其中心，並最終形成鐵核塌縮型超新星。而當混合過程能夠阻止火焰傳播時
，並合天體會最終形成電子俘獲型超新星。

yanjiurenyuanhaifaxian
，youyubinghetiantideyanhuashifenxunsu，xingfengwuzhisunshiguochengyutiantidezizhuanduiqiyanhuaguochengyingxiangbuda。zheyiyanjiuchengguo
，jiashenlerenmenduichaoqiandelasaikazhiliangshuangyangnaibaiaixingbinghejiyanhuaguochengderenshi。