Inferring the neutron star maximum mass and lower mass gap in neutron star-black hole systems with spin Christine Ye, Maya Fishbach
Gravitational-wave (GW) detections of merging neutron star-black hole (NSBH) systems probe astrophysical neutron star (NS) and black hole (BH) mass distributions, especially at the transition between NS and BH masses. Of particular interest are the maximum NS mass, minimum BH mass, and potential mass gap between them. While previous GW population analyses assumed all NSs obey the same maximum mass, if rapidly spinning NSs exist, they can extend to larger maximum masses than nonspinning NSs. In fact, several authors have proposed that the ∼2.6M⊙ object in the event GW190814 -- either the most massive NS or least massive BH observed to date -- is a rapidly spinning NS. We therefore infer the NSBH mass distribution jointly with the NS spin distribution, modeling the NS maximum mass as a function of spin. Using 4 LIGO-Virgo NSBH events including GW190814, if we assume that the NS spin distribution is uniformly distributed up to the maximum (breakup) spin, we infer the maximum non-spinning NS mass is 2.7+0.5−0.4M⊙ (90\% credibility), while assuming only nonspinning NSs, the NS maximum mass must be >2.53M⊙ (90\% credibility). The data support the mass gap's existence, with a minimum BH mass at 5.4+0.7−1.0M⊙. With future observations, under simplified assumptions, 150 NSBH events may constrain the maximum nonspinning NS mass to ±0.02M⊙, and we may even measure the relation between the NS spin and maximum mass entirely from GW data. If rapidly rotating NSs exist, their spins and masses must be modeled simultaneously to avoid biasing the NS maximum mass.
Comments:
16 pages, 13 figures. Submitted to ApJ
Subjects:
High Energy Astrophysical Phenomena (astro-ph.HE); General Relativity and Quantum Cosmology (gr-qc)
https://www.geekwire.com/2022/seattle-area-high-school-senior-wins-250000-award-for-gravitational-wave-research/amp/
不同的是做研究的机会。其实有这能力的孩子很多，it is all about being at the right place at the right time. 不过科研就是这样。还有愿意做。我家的就绝对不肯去做，推不动。
Any wrongdoings on this
做过研究的都知道该信还是不信。
招生的学校
了不起！！！
九岁学大学的东西不过分。
有一个两岁学代数的韩国神童，是真事。
通常新闻媒体会把研究结果写得很牛，但是实际不是这么回事。要看结果最后发表到哪个级别的专业期刊了。这个现在只是进了一个专业会议。
所以只追求IQ类的能力远远不够, 开发EQ成为insider更重要。
都不会有这样的科研结果。
不是所有的都不可信，那个evan Odorney 得的科技大奖就比这种可信多了。
情况早就变了
更强，和MIT的博士一起发文章。。。父母都比不上这个孩子，孩子的哥哥是很严重的自闭症。。。
Inferring the neutron star maximum mass and lower mass gap in neutron star-black hole systems with spin Christine Ye, Maya Fishbach
但物理化学生物不会有，这些领域有天才，但不会是神童。这些领域的成就要晚不少
所有的physical science 高中生不会有啥成就，甭管获啥奖。
你没做过physical science的research吧
Jobs 的太太也是做好了“陷阱”捕Jobs的，表面上好像是意外迟到
MIT小行星命名的荣誉。。。
有可能的话，看看你信的牛蛙是不是转身就读CS了？
反正这潭我看了快二十年，这种奖的获得者有的早先一转身学经济，现在已转身学CS。
对physical science 的其实啥也没做，但可以吹成天花。
三大科研奖，可谓空前绝后。不知道那娃最后去哪了？现在还在搞科研吗？
projects 和 mentors 是 RSI分派的， 不是爹娘关系。