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4MOST Consortium Survey 10: The Time-Domain Extragalactic Survey (TiDES)

Research output: Contribution to specialist publicationArticle

Published
  • E. Swann
  • M. Sullivan
  • J. Carrick
  • S. Hoenig
  • I. Hook
  • R. Kotak
  • K. Maguire
  • R. McMahon
  • R. Nichol
  • S. Smartt
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Publication date03/2019
Pages58-61
Number of pages4
JournalThe Messenger
Volume175
<mark>Original language</mark>English

Abstract

The Time-Domain Extragalactic Survey (TiDES) is focused on the spectro-scopic 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 0.5, measure redshifts for up to 50 000 transient host galaxies to z 1 and monitor around 700 active galactic nuclei to z 2.5....