论文标题
黑暗能源调查的OZDES多对象纤维光谱:结果和第二个数据释放
OzDES multi-object fibre spectroscopy for the Dark Energy Survey: Results and second data release
论文作者
论文摘要
我们介绍了澳大利亚黑暗能源调查(OZDES)的描述,并总结了其六年的运营结果。 Ozdes使用3.9米的盎格鲁 - 澳大利亚望远镜上使用2DF光纤定位器和Aaomega光谱仪,对771 AGN进行了监测,对数百个超新星进行了分类,并获得了数千个星系的红移,这些星系在黑暗能源调查的10个深地域内携带了一个瞬时。我们还介绍了第二个Ozdes数据发布,其中包含近30,000个来源的红移,其中一些像$ r _ {\ mathrm ab} = 24 $ mag和375,000个单个光谱一样淡淡。这些数据与黑暗能源调查的时间序列光度法相结合,将用于测量宇宙的扩展历史记录到$ z \ sim1.2 $,以及数百个黑洞的群众,将其量化为$ z \ sim4 $。 Ozdes是将来调查的模板,将目标同时监视与宽视野成像摄像机和宽场多对象光谱仪相结合。
We present a description of the Australian Dark Energy Survey (OzDES) and summarise the results from its six years of operations. Using the 2dF fibre positioner and AAOmega spectrograph on the 3.9-metre Anglo-Australian Telescope, OzDES has monitored 771 AGN, classified hundreds of supernovae, and obtained redshifts for thousands of galaxies that hosted a transient within the 10 deep fields of the Dark Energy Survey. We also present the second OzDES data release, containing the redshifts of almost 30,000 sources, some as faint as $r_{\mathrm AB}=24$ mag, and 375,000 individual spectra. These data, in combination with the time-series photometry from the Dark Energy Survey, will be used to measure the expansion history of the Universe out to $z\sim1.2$ and the masses of hundreds of black holes out to $z\sim4$. OzDES is a template for future surveys that combine simultaneous monitoring of targets with wide-field imaging cameras and wide-field multi-object spectrographs.