Re: Optimization of observations for the HST search

From: Saul Perlmutter (saul@lbl.gov)
Date: Sat Oct 18 2003 - 00:07:45 PDT

  • Next message: Saul Perlmutter: "Re: Optimization of observations for the HST search"

    Hi Vitaliy, Is it easy for you to check the following things?--
    First, if you assume that you will not be able to get another observation for at least 7 days
    after the discovery does that change anything? (This might be the delay necessary to run the
    search, find the supernova, and request the HST to put the follow-up on the calendar.)
    Second, in the cases in which the supernova is found after maximum, does it help determine
    "stretch" if you include the 3/4-of-an-orbit from 45 days-before-discovery (i.e., from the
    "reference" image taken in the previous iteration of the search)?
    Third, what happens if you only use 7 (or fewer) orbits for the lower-redshift supernovae?
    Fourth, did you check whether you want the sequence of observations to stop at 45 days past
    discovery? Would it be better to extend the schedule of "follow-up" orbits beyond that date
    -- or, alternatively, to end them earlier than your current examples?

    --Saul

    Vitaliy Fadeyev wrote:

    > Dear Searchers,
    >
    > attached please find a short note about the optimization
    > of the observation strategies for the upcoming HST search.
    >
    > The software tools for study were provided by Rob. An essential
    > input is the signal-to-noise tables from Rachel. Undoubtely
    > the study is not yet complete, however some preliminary
    > conclusions can be drawn.
    >
    > Cheers,
    > vitaliy
    >
    > P.S. I will not be around on Monday and Tuesday, but will check
    > emails this weekend.
    >
    > ------------------------------------------------------------------------
    > Name: HST_search_optimization.ps
    > HST_search_optimization.ps Type: Postscript Document (application/postscript)
    > Encoding: 7bit
    > Download Status: Not downloaded with message



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