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The Supernova Legacy Survey (SNLS)

  1. Sep 20, 2006 #1


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    The SNLS survey consists of:

    A large imaging survey at CFHT
    The CFHT Legacy Survey aims at detecting and monitoring about 2000 supernovae with Megaprime at the Canada-France-Hawaii telescope between 2003 and 2008.​

    A large spectroscopic survey
    Hi-z spectroscopy of SNe is being carried on 8m class telescopes (Gemini, VLT, Keck). The primary goal is to obtain Supernova identification and redshift. Detailed spectroscopy of a subsample of distant SNe is also done to validate the use of Type Ia SNe as cosmological candles. ​

    This program yielded information on SNLS-03D3bb.
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  3. Sep 22, 2006 #2


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    A very interesting programme - the work that will be done to characterise, in considerably more detail, the distant type 1a SNe is just what's needed to constrain many possible systematics for these (i.e. just how 'standard' they are, as candles). This will be particularly welcome, given that computer-based simulations/models of these are still not good enough (for the full 'standard candle' use).
  4. Sep 24, 2006 #3


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    Is this a high redshift project competing with the Supernova Cosmology Project? Or are they somehow complementary?
  5. Sep 26, 2006 #4


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    This >2MB PDF from a member of the SNLS team (a poster at the 207th AAS meeting, in Jan this year) puts it rather nicely: "After just over 2 years of operation, the SNLS is already outperforming all previous ground-based high-z SN surveys." (though if you look more closely, you'll see much collaboration).

    The design is different from earlier teams', and (one could argue) more robust, and more efficient (not to mention having a great deal more dark time available, on many different 8-10m class observatories!).
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