Re: new version of HST proposal posted - COMMENTS

From: Marc Postman (postman@stsci.edu)
Date: Fri Jan 26 2007 - 11:12:56 PST

  • Next message: Kyle Dawson: "Re: new version of HST proposal posted - COMMENTS"

    Well, if we haven't corrected Ngal for the different absolute flux
    limits of the data that is potentially a major bias - for a fixed
    apparent mag limit the limiting absolute magnitude reached at z=0.8
    is 1.5 mag fainter than at z=1.4 - a non-trivial impact on any number
    counting statistic - at least a factor of 2 - 4. I think there was a
    suggestion to attempt a quick linear correction. Seems to me at the
    very least that should be done (if it can be done quickly).

    On Jan 26, 2007, at 1:44 PM, prme wrote:

    > I think the figure (3b) is important to show that we are getting
    > weak lensing results out of the data, and so needs to be in the
    > proposal.
    > I agree that the caption and text should emphasize that the
    > N_gal metric is preliminary and that we are exploring with more
    > sophisticated metrics for mass.
    >

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