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arXiv 0810.3499astro-ph
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来自附近超新星工厂的最初哈勃图结果

Initial Hubble Diagram Results from the Nearby Supernova Factory

S. Bailey, G. Aldering, P. Antilogus, C. Aragon, C. Baltay, S. Bongard, C. Buton, M. Childress, Y. Copin, E. Gangler, S. Loken, P. Nugent, R. Pain, E. Pecontal,… 展开作者

S. Bailey, G. Aldering, P. Antilogus, C. Aragon, C. Baltay, S. Bongard, C. Buton, M. Childress, Y. Copin, E. Gangler, S. Loken, P. Nugent, R. Pain, E. Pecontal, R. Pereira, S. Perlmutter, D. Rabinowitz, G. Rigaudier, P. Ripoche, K. Runge, R. Scalzo, G. Smadja, C. Tao, R. C. Thomas, C. Wu

摘要:

使用Ia型超新星作为距离指标导致了十年前宇宙加速膨胀的发现。现在,大型的第二代巡天已经显著增加了高红移样本的大小和质量,宇宙学的限制受到目前可用的约50颗宇宙学上有用的邻近超新星样本的限制。邻近超新星工厂通过发现邻近的超新星并观察它们的分光光度时间发展来解决这个问题。我们的数据样本包括来自185颗超新星的光谱时间序列的2400多个光谱。本演讲介绍了该样本的一部分结果,包括哈勃图(相对距离与红移)和使用此丰富数据集的一些分析的描述。

英文摘要:

The use of Type Ia supernovae as distance indicators led to the discovery of the accelerating expansion of the universe a decade ago. Now that large second generation surveys have significantly increased the size and quality of the high-redshift sample, the cosmological constraints are limited by the currently available sample of ~50 cosmologically useful nearby supernovae. The Nearby Supernova Factory addresses this problem by discovering nearby supernovae and observing their spectrophotometric time development. Our data sample includes over 2400 spectra from spectral timeseries of 185 supernovae. This talk presents results from a portion of this sample including a Hubble diagram (relative distance vs. redshift) and a description of some analyses using this rich dataset.

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。

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