arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1603.00136astro-ph.HEgr-qc
收藏

通过修改爱因斯坦的引力来探索奇特的,亚-和超-克拉塞卡Ia型超新星之间缺失的联系

Exploring a missing link between peculiar, sub- and super-Chandrasekhar type Ia supernovae by modifying Einstein's gravity

Banibrata Mukhopadhyay

摘要:

对几个特殊的、亮度不足和过亮的Ia型超新星(SNeIa)的观测表明,爆炸质量与克拉塞卡极限有很大的不同。我们在文献中首次探索了爱因斯坦在白矮星中的重力修正,这表明,根据为当前表示目的而选择的(依赖于密度的)修正重力参数$α$,白矮星的极限质量可能是显着的亚钱德拉塞卡和超级钱德拉塞卡。因此,这统一了明显不相交的SNeIa类,建立了修正的爱因斯坦引力在白矮星中的重要性。我们的发现质疑了爱因斯坦引力理论的全局有效性和拉塞卡极限的唯一性。

英文摘要:

Observations of several peculiar, under- and over-luminous type Ia supernovae (SNeIa) argue for exploding masses widely different from the Chandrasekhar-limit. We explore the modification to Einstein's gravity in white dwarfs for the first time in the literature, which shows that depending on the (density dependent) modified gravity parameter $α$, chosen for the present purpose of representation, limiting mass of white dwarfs could be significantly sub- as well as super-Chandrasekhar. Hence, this unifies the apparently disjoint classes of SNeIa, establishing the importance of modified Einstein's gravity in white dwarfs. Our discovery questions both the global validity of Einstein's gravity and the uniqueness of Chandrasekhar's limit.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑