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