arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1104.0747astro-ph.SRastro-ph.CO
收藏

Ia型超新星:宇宙的非标准烛光

Supernovae type Ia: non-standard candles of the Universe

A. I. Bogomazov, A. V. Tutukov

摘要:

分析了Ia超新星宿主星系中灰尘埃光吸收演化的影响,以及在引力辐射影响下合并中的碳氧双白矮星(Ia超新星的祖先)平均总质量演化对Ia超新星哈勃图解释的影响。在红移z> 2时,可以观察到Ia超新星的平均能量由于合并矮星的总质量增加而显著增加。在Ia超新星观测中观测到的距离模量与红移的关系不仅可以用宇宙加速膨胀的假设来解释,而且可以用Ia超新星不同类型的宿主星系中灰色尘埃对光吸收的演化、观测选择的影响以及合并中简并矮星平均质量的减少来解释。

英文摘要:

We analyze the influence of the evolution of light absorbtion by grey dust in SNe Ia host galaxies and the influence of the evolution of average total mass of coalescing double carbon-oxygen white dwarfs (progenitors of SNe Ia) under the influence of gravitational radiation on the interpretation of Hubble diagrams of SNe Ia. Significant increase in the average energy of SNe Ia due to increase in the total mass of merging dwarfs can be observed at red shift z> 2. The observed dependence of the distance modulus from the red shift in observations of SNe Ia can be explained not only by the assumption about accelerated expansion of the Universe, but also by the evolution of the absorbtion of light by grey dust in various types of host galaxies of SNe Ia, by the effects of observational selection and by the decrease in the average mass of coalescing degenerate dwarfs.

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。

↑