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Sökning: WFRF:(Bell C.~P.~M.)

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1.
  • Guiglion, G., et al. (författare)
  • 4MOST Survey Strategy Plan
  • 2019
  • Ingår i: Messenger. - 0722-6691. ; 175, s. 17-21
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • The current status of and motivation for the 4MOST survey strategy, as developed by the Consortium science team, are presented here. Key elements of the strategy are described, such as sky coverage, number of visits and total exposure times in different parts of the sky, and how to deal with different observing conditions. The task of organising the strategy is not simple, with many different surveys that have vastly different target brightnesses and densities, sample completeness levels, and signal-to-noise requirements. We introduce here a number of concepts that we will use to ensure all surveys are optimised. Astronomers who are planning to submit a Participating Survey proposal are strongly encouraged to read this article and any relevant 4MOST Survey articles in this issue of The Messenger such that they can optimally complement and benefit from the planned surveys of the 4MOST Consortium.
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2.
  • Walcher, C.~J., et al. (författare)
  • 4MOST Scientific Operations
  • 2019
  • Ingår i: Messenger. - 0722-6691. ; 175, s. 12-16
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • The 4MOST instrument is a multi-object spectrograph that will address Galactic and extragalactic science cases simultaneously by observing targets from a large number of different surveys within each science exposure. This parallel mode of operation and the survey nature of 4MOST require some distinct 4MOST- specific operational features within the overall operations model of ESO. The main feature is that the 4MOST Consortium will deliver, not only the instrument, but also contractual services to the user community, which is why 4MOST is also described as a facility. This white paper concentrates on information particularly useful to answering the forthcoming Call for Letters of Intent.
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