亚博直播_科学家宣布再次探测到引力波

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亚博直播:fourmonthsafterthehistoricfirst-everdetectionofgravitationalwaves, scientistssaidtheyhavedirectlydetectedanothergravitationalwavewashingovertheearth .引力波史上第一次检测到四个月后,科学家们最近又一个引力波席卷世界The gravitational waves,ripples in the fabric of spacetime,wereobservedforasecondtimeondec.26,2015, at 0333 60383335 scientistssaidatapressconferenceduringtheamericanastronomicalsocietyconferenceinsandiego,California .科学家在加利福尼亚scientistssaidthattheincrediblyfaintripplethateventuallyreachedearthwastheresultofthespinningdanceofabinaryblackholepaironthe b althoughthisduoweighedonly8and 14 solar masses .科学家认为,这次最后到达地球的引力波非常暗,它是两个二进制黑洞互相围绕周边分别引起的,这两个布拉特Their merger produced a single,moremassivespinningblackholethatis 21 timesthemassofthesun, andtransformedanadditionalsunsworthofmassintogravitationalenergy,they said .这些分立产生总质量为21个太阳质量、更大的旋转黑洞,增加了thescientistsdetectedthegravitationalwavesusingthetwinlaserinterferometergravitational-wave observatory (LIGO ) interf atory locas Louisiana,and Hanford,Washington .科学家通过激光干涉引力波天文台用路易斯安那州和华盛顿州两个干涉仪观测到了这次引力波。 In contrast,ligoshistoricfirstdetectiononsept.14, 2015 resultedfromamergeroftwoblackholes 36 and 29 timesthemassofthesun itconfirmedamajorpredictionofalberteinsteins 1915 generaltheory beginningofthenewfieldofgravitationalwave stron omy .引力波的发现证实了阿尔伯特爱因斯坦在1915年明确提出的广义相对论的根本预测,标志着引力波天文学新领域的开始。

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