4MOST Consortium Survey 10: The Time-Domain Extragalactic Survey (TiDES)
4MOST Consortium Survey 10: The Time-Domain Extragalactic Survey (TiDES)
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DOI：
10.18727/0722-6691/5129
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发表时间：
2019-03
期刊：
影响因子：
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通讯作者：
E. Swann;Mark Sullivan;J. Carrick;S. Hoenig;I. Hook;R. Kotak;K. Maguire;R. McMahon;R. Nichol;S. Smartt
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文献类型：
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作者：
E. Swann;Mark Sullivan;J. Carrick;S. Hoenig;I. Hook;R. Kotak;K. Maguire;R. McMahon;R. Nichol;S. Smartt
时域河外巡天（TiDES）的重点是对即将到来的大型巡天（如大型天气巡天望远镜（LSST））中选择的河外光学瞬态和可变源进行光谱跟踪。TiDES包含三个子调查：(i)类超新星瞬变的光谱观测；（ii）对瞬态宿主星系进行全面跟踪，以获得宇宙学应用所需的红移测量；（三）重复光谱观测，使活动星系核的混响映射成为可能。我们的模拟预测我们将能够将瞬变分类到$r = 22.5$等（AB），并且在4MOST操作的五年里，获得多达30,000个活瞬变的光谱，红移$z \sim 0.5$，测量多达50,000个瞬态宿主星系的红移$z \sim 1$，并监测大约700个活动星系核到$z \sim 2.5$。
The Time-Domain Extragalactic Survey (TiDES) is focused on the spectroscopic follow-up of extragalactic optical transients and variable sources selected from forthcoming large sky surveys such as that from the Large Synoptic Survey Telescope (LSST). TiDES contains three sub-surveys: (i) spectroscopic observations of supernova-like transients; (ii) comprehensive follow-up of transient host galaxies to obtain redshift measurements for cosmological applications; and (iii) repeat spectroscopic observations to enable the reverberation mapping of active galactic nuclei. Our simulations predict we will be able to classify transients down to $r = 22.5$ magnitudes (AB) and, over five years of 4MOST operations, obtain spectra for up to 30,000 live transients to redshift $z \sim 0.5$, measure redshifts for up to 50,000 transient host galaxies to $z \sim 1$ and monitor around 700 active galactic nuclei to $z \sim 2.5$.