Re: More on IR photometry

From: Serena Nobili (serena@physto.se)
Date: Wed Feb 11 2004 - 10:10:13 PST

  • Next message: Chris Lidman: "Re: More on IR photometry"

    Hi Chris,

    thanks for your document, it is a useful work you have done to clarify
    this point. My personal opinion is that adding a 0.05 mag uncertainties to
    all the SNe is the easiest way to go, especially since we don't know what
    system they have used in Tonry and Riess'papers. Moreover, correcting for
    this small amount is not changing the results we present. Anyway, let's
    see what the rest of the collaboration would like.
    I have one question about the section called "conclusions". You say:

    "If we choose not to apply the correction, then a suitable
    systematic error for IR-optical colors should be 0.05 magnitudes and
    this should be added to the systematic error which is listed in table 8.

    If we choose not to apply this correction, then the systematic error
    is 0.02 magnitudes."

    The second sentence seems to contradict the first one. Am I missing
    something?
    Cheers

           Serena

    On 11 Feb 2004, Chris Lidman wrote:

    >Hi Serena,
    > I've had a more detailed look at the issue of optical-IR colours and I
    >attach a note which we can use for this evenings discussion.
    >
    >Cheers, Chris.
    >

    -- 
    

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