Re: tile distribution plan

From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Thu Jul 01 2004 - 21:53:17 PDT

  • Next message: Rachel A. Gibbons: "Re: tile distribution plan"

    That's fine. Send the proposal to Adam.

    -Rob

    On Thu, Jul 01, 2004 at 07:53:20PM -0700, Tony Spadafora wrote:
    > HST search,
    >
    > Rachel and I just went over the distribution plan and propose the
    > follow. The attached spreadsheet has the details.
    >
    > By orbit ratio of 19/33 they get 5.5/we get 9.5 tiles. We propose to
    > give them the 5 contiguous tiles Adam suggested plus the (north) half
    > of 35 -
    > this is 29,30,33,34,36 and north half of 35. The extra half-tile
    > brings us very close to the desired target - whether you consider tiles
    > unweighted or weighted by overlap with the May search, this comes to
    > within a few percent of the target ratio (see the spreadsheet).
    >
    > The two tiles which we think have a higher than normal probability of
    > failure due to guide star limitations are 29 and 30 (in Adam's
    > section.) If they or any tile fails in one team's area, they get the
    > remaining half of tile 35. This will bring the ratio to 9/5, which is
    > close 33/19.
    >
    > In the unlikely event that a SN falls on the edges of two adjacent
    > tiles, then we do something appropriate like rolling a die with 1-4
    > for us, 5-6 for them.
    >
    > Does dividing in contiguous blocks change our probability of finding a
    > high z SN? For z>1.2 , the statistics for the past two searches (plus
    > what they found in the North in the GOODs search) seems too low to say
    > anything about clustering.
    >
    > -Tony and Rachel

    -- 
    --Prof. Robert Knop
      Department of Physics & Astronomy, Vanderbilt University
      robert.a.knop@vanderbilt.edu
    


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