arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1010.4014astro-ph.COgr-qchep-th
收藏

超新星光变曲线拟合器和暗能量

Supernova light-curve fitters and Dark Energy

Gabriel R. Bengochea

摘要:

我们表明,当一个程序,以消除超新星Ia(SN Ia)数据集和观测BAO和CMB之间的紧张关系,可能会有这样的情况下,同一个SN Ia集建立两个不同的光变曲线拟合表现为两个独立的和不同的超新星集,和超新星集之间的紧张关系,一些作者发现实际上可能是由于紧张关系或不一致的拟合。我们还表明,在SN Ia数据集中使用的拟合器的信息可能是相关的,以确定是否幻影型模型是有利的或不当这样的一组与BAO/CMB联合参数相结合。

英文摘要:

We show that when a procedure is made to remove the tension between a supernova Ia (SN Ia) data set and observations from BAO and CMB, there might be the case where the same SN Ia set built with two different light-curve fitters behaves as two separate and distinct supernova sets, and the tension found by some authors between supernova sets actually could be due to tension or inconsistency between fitters. We also show that the information of the fitter used in an SN Ia data set could be relevant to determine whether phantom type models are favored or not when such a set is combined with the BAO/CMB joint parameter.

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。

↑