来自Dome A的Ia型超新星前瞻性调查
Prospective Type Ia Supernova Surveys From Dome A
摘要:
南极洲最高的高原Dome A正在被开发为天文观测站。计划中的望远镜和仪器以及独特的场地特征有利于宇宙学的Ia型超新星调查。一个独立的搜索和调查超过五年可以产生一个分光光度的时间序列约1000 z<0.08超新星。这些可以用来锚定哈勃图,并量化Ia型超新星类内光度和不均匀性之间的关系,减少系统性。更大口径(>4米)的望远镜能够在爆炸后不久发现z~3的超新星。这些可以被送入太空望远镜,可以分离系统学,并扩大我们测量宇宙膨胀历史的红移范围。
英文摘要:
Dome A, the highest plateau in Antarctica, is being developed as a site for an astronomical observatory. The planned telescopes and instrumentation and the unique site characteristics are conducive toward Type Ia supernova surveys for cosmology. A self-contained search and survey over five years can yield a spectro-photometric time series of ~1000 z<0.08 supernovae. These can serve to anchor the Hubble diagram and quantify the relationship between luminosities and heterogeneities within the Type Ia supernova class, reducing systematics. Larger aperture (>4-m) telescopes are capable of discovering supernovae shortly after explosion out to z~3. These can be fed to space telescopes, and can isolate systematics and extend the redshift range over which we measure the expansion history of the universe.
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。