Simulating the detection and classification of high-redshift supernovae with HARMONI on the ELT
Simulating the detection and classification of high-redshift supernovae with HARMONI on the ELT
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DOI：
10.1093/mnras/sty376
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发表时间：
2018-08
影响因子：
4.8
通讯作者：
S. Bounissou;N. Thatte;S. Zieleniewski;R. Houghton;M. Tecza;I. Hook;B. Neichel;T. Fusco
中科院分区：
文献类型：
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作者：
S. Bounissou;N. Thatte;S. Zieleniewski;R. Houghton;M. Tecza;I. Hook;B. Neichel;T. Fusco
我们提出了详细的模拟积分场光谱观测的超新星在一个宿主星系在z 3，观察到的HARMONI光谱仪的极大望远镜，asssisted由激光层析自适应光学。使用HSIM模拟工具进行模拟的目的是确定HARMONI是否可以从超新星光谱中的光谱特征中辨别超新星类型。我们发现，在3小时的观测中，覆盖近红外H和K波段，在光谱分辨率为3000的情况下，使用20×20质量的光谱尺度，我们可以将Ia型超新星和它们的红移稳健地分类到最大光过去80天（超新星静止框架中为20天）。我们表明，HARMONI将提供在z = 3的光谱是可比的（或更好）的质量，我们目前可以获得的最好的光谱在z = 1，从而使宇宙膨胀率的研究被推到大幅提高红移。
We present detailed simulations of integral field spectroscopic observations of a supernova in a host galaxy at z ∼ 3, as observed by the HARMONI spectrograph on the Extremely Large Telescope, asssisted by laser tomographic adaptive optics. The goal of the simulations, using the HSIM simulation tool, is to determine whether HARMONI can discern the supernova Type from spectral features in the supernova spectrum. We find that in a 3 hour observation, covering the near-infrared H and K bands, at a spectral resolving power of ∼3000, and using the 20×20 mas spaxel scale, we can classify supernova Type Ia and their redshift robustly up to 80 days past maximum light (20 days in the supernova rest frame). We show that HARMONI will provide spectra at z ∼ 3 that are of comparable (or better) quality to the best spectra we can currently obtain at z ∼ 1, thus allowing studies of cosmic expansion rates to be pushed to substantially higher redshifts.