Re: new template - 1999Q. (ANOTHER CORRECTION!)

From: Vitaliy Fadeyev (VAFadeyev@lbl.gov)
Date: Fri Jun 11 2004 - 15:00:00 PDT

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    Well, it is possible to make more than one mistake. Greg noticed the
    too-small error for
    the "discovery point" we took from the IAU Circular. When fixing the
    error to 0.05 mag,
    here is what happens to the table (the "HST only" part is the same, of
    course).

    Cases are:

    1R - HST only, Rob's template
    1P - HST only, Peter's template
    1S - HST only, Serena's template
    2R - HST and discovery point, Rob's template
    2P - HST and discovery point, Peter's template
    2S - HST and discovery point, Serena's template
    3R - HST and discovery point, tmax fixed to Tonry's, Rob's template
    3P - HST and discovery point, tmax fixed to Tonry's, Peter's template
    3S - HST and discovery point, tmax fixed to Tonry's, Serena's template

    SNMINUIT output table:
    case m_B dm_R m_B_corr dm_B_corr s ds chisq dof m_R kcorr_R kcorr_I tmax
    dtmax R-I d(R-I) EBV dEBV
    1R 22.93 0.05 23.20 0.11 1.167 0.037 1.89 8 22.08 -0.851 -0.708
    2451185.08 1.612 -0.030 0.048 -0.033 0.050
    1P 22.93 0.06 23.18 0.11 1.159 0.037 1.36 8 22.07 -0.854 -0.707
    2451185.07 1.577 -0.036 0.047 -0.032 0.049
    1S 22.93 0.06 23.19 0.11 1.158 0.036 1.43 8 22.08 -0.852 -0.707
    2451185.31 1.597 -0.031 0.047 -0.035 0.049

    2R23.02 0.04 23.30 0.10 1.179 0.037 4.92 9 22.17 -0.852 -0.711
    2451187.10 1.853 -0.076 0.052 0.016 0.054
    2P 23.02 0.04 23.29 0.10 1.173 0.036 4.93 9 22.16 -0.855 -0.711
    2451187.16 1.782 -0.090 0.050 0.025 0.053
    2S 23.03 0.04 23.31 0.10 1.177 0.037 4.93 9 22.17 -0.853 -0.711
    2451187.30 1.867 -0.085 0.052 0.023 0.055

    3R 23.18 0.03 23.35 0.07 1.091 0.026 21.36 10 22.33 -0.854 -0.724
    2451194.65 0.000 -0.238 0.029 0.182 0.031
    3P 23.19 0.03 23.35 0.07 1.092 0.026 19.51 10 22.33 -0.858 -0.723
    2451194.65 0.000 -0.252 0.029 0.191 0.031
    3S 23.19 0.03 23.38 0.08 1.102 0.026 19.83 10 22.34 -0.856 -0.724
    2451194.65 0.000 -0.256 0.030 0.200 0.032

    The snminuit plots are here:

    Case Plot
    1R http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTonly.ps
    1P
    http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTonly_uberPeter.ps
    1S
    http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTonly_uberSerena.ps
    2R http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc.ps
    2P
    http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_uberPeter.ps
    2S
    http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_uberSerena.ps
    3R http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_fixtmax.ps
    3P
    http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_fixtmax_uberPeter.ps

    3S
    http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_fixtmax_uberSerena.ps

    vitaliy

    Vitaliy Fadeyev wrote:

    >
    >
    > Hi All,
    >
    > In all my previous lightcurve fits for 99Q I made the same mistake of
    > specifying
    > wrong restframe filters. This was the reason for significant
    > differences between
    > fits with different spectral templates, and "structured" fitted
    > lightcurve noted
    > by Greg. The fixed table is shown below.
    >
    > Cases are:
    >
    > 1R - HST only, Rob's template
    > 1P - HST only, Peter's template
    > 1S - HST only, Serena's template
    > 2R - HST and discovery point, Rob's template
    > 2P - HST and discovery point, Peter's template
    > 2S - HST and discovery point, Serena's template
    > 3R - HST and discovery point, tmax fixed to Tonry's, Rob's template
    > 3P - HST and discovery point, tmax fixed to Tonry's, Peter's template
    > 3S - HST and discovery point, tmax fixed to Tonry's, Serena's template
    >
    > SNMINUIT output table:
    > case m_B dm_R m_B_corr dm_B_corr s ds chisq dof m_R kcorr_R kcorr_I
    > tmax dtmax R-I d(R-I) EBV dEBV
    > 1R 22.93 0.05 23.20 0.11 1.167 0.037 1.89 8 22.08 -0.851 -0.708
    > 2451185.08 1.612 -0.030 0.048 -0.033 0.050
    > 1P 22.93 0.06 23.18 0.11 1.159 0.037 1.36 8 22.07 -0.854 -0.707
    > 2451185.07 1.577 -0.036 0.047 -0.032 0.049
    > 1S 22.93 0.06 23.19 0.11 1.158 0.036 1.43 8 22.08 -0.852 -0.707
    > 2451185.31 1.597 -0.031 0.047 -0.035 0.049
    >
    > 2R 23.09 0.02 23.36 0.08 1.175 0.036 6.67 9 22.24 -0.852 -0.715
    > 2451189.19 1.414 -0.123 0.040 0.066 0.042
    > 2P 23.09 0.02 23.36 0.08 1.172 0.037 6.24 9 22.23 -0.856 -0.714
    > 2451189.16 1.399 -0.138 0.040 0.076 0.042
    > 2S 23.09 0.02 23.38 0.08 1.178 0.036 6.27 9 22.24 -0.854 -0.714
    > 2451189.23 1.382 -0.135 0.040 0.076 0.042
    >
    > 3R 23.12 0.02 23.20 0.05 1.037 0.020 31.97 10 22.26 -0.854 -0.724
    > 2451194.65 0.000 -0.241 0.030 0.181 0.032
    > 3P 23.12 0.02 23.21 0.05 1.037 0.020 32.33 10 22.26 -0.858 -0.723
    > 2451194.65 0.000 -0.255 0.030 0.190 0.032
    > 3S 23.13 0.02 23.23 0.06 1.048 0.020 32.32 10 22.27 -0.856 -0.724
    > 2451194.65 0.000 -0.258 0.030 0.197 0.032
    >
    > The snminuit plots are here:
    >
    > Case Plot
    > 1R http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTonly.ps
    > 1P
    > http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTonly_uberPeter.ps
    > 1S
    > http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTonly_uberSerena.ps
    >
    > 2R http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc.ps
    > 2P
    > http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_uberPeter.ps
    > 2S
    > http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_uberSerena.ps
    >
    > 3R
    > http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_fixtmax.ps
    > 3P
    > http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_fixtmax_uberPeter.ps
    >
    > 3S
    > http://www-physics.lbl.gov/~fadeyev/snminuit_sn1999q_HSTdisc_fixtmax_uberSerena.ps
    >
    >
    >
    > The different spectral templates give a fairly consistent answer.
    > Please note that the errors are somewhat underestimated, since I did
    > not include any kind of "systematic" errors for these fits.
    > The late-time behaviour of the lightcurve is still in contradiction
    > with the Tonry's Tmax value.
    >
    >
    > Mea culpa,
    > vitaliy
    >
    >

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