May 7 comments - round 2

From: Greg Aldering (aldering@panisse.lbl.gov)
Date: Tue May 13 2003 - 22:57:43 PDT

  • Next message: Robert A. Knop Jr.: "Re: K-corrections for low-z SNe"

    Hi Rob,

    Here are additional comments on the May 7th version of the HST paper:

    First, here are items that are highly recommended changes:

    p1 In the abstract, change

       "... measurements of OM and OL from 11 ..."
       "... measurements of OM, OL and $w$ from 11 ..."

    Fig 4 caption: Please indicate that it is the constant value of the blue edge of
                    E(B-V) values that shows no evolution. That is the real point of this
                    plot.

    Other comments, most of which can handled later:

    Abstract: "Because of the high-quality ... WFPC2, these 11 ... alone provide ..."

              "The high-quality ... WFPC2 mean that these 11 ... alone provide ..."

    Abstract: "... the E(B-V) parent distribution, ..."
              "... the parent E(B-V) distribution, ..."

    p 2: "... and the properties of massive ..."
          "... the properties of massive ..."

    p 2: "... dynamical dynamical ..."
          "... dynamical ..."

    p 3: "... those in early-type systems, even ..."
          "... those in early-type galaxies, even ..."

    p 3: "... that identified dust ..."
          "... that suggests dust ..."

    p 3: Maybe add the following at the end of the last full paragraph
          "and represent the largest sample to date of HST-measured SNe Ia at high redshift."

    p 4: In the first full paragraph you did include the section numbers, as I request,
          but I think they can be used to help the flow of the text. For instance,
          where you say "After that, the ..." you could say "In \S2.4 the ..."

    p 6: "... all of our observing ..."
          "... all of our WFPC2 observing ..."

    p 6: "Images were background ..."
          "Images were then background ..."

    p 6: "... superimposed on top of the ..."
          "... superimposed on the ..."

    p 6: "... the host galaxy flux ..."
          "... the host-galaxy flux ..."

    p 6: "For four out of ..."
          "In four out of ..."

    p 7: You need a \citep for the Holtman reference

    p 7: The rest of the paragraph starting at "The Tiny Time PSF used was ..."
          seems like it should go earlier.

    p 7: There is a mess that needs fixing at "lesssim0.02-0.3; ... zeropoint for this only"

    p 8: "... to the R and I band data. (The peak B band magnitude ... the fit V band ..."
          "... to the R- and I-band data. (The peak B-band magnitude ... the fit V-band ..."

    p 8: "... host galaxy image."
          "... host-galaxy image."

    Table 2: I suggest that you simply quote the template values as floating point
             values out to the 0.001 place. This would make it much easier to see the
             ebb and flow of the lightcurve.

    p13: You mention error bars of -0.04 on the red side and +0.12 on the blue side.
          I thought that you made the error bars greater on the red side.

    p13: "... with teh data ..."
          "... with the data ..."

    p13: "... should be included in the assumed intrinsic ..."
          "... is already subsummed within the intrinsic ..."

    p16: "... intrinsic color disperion ..."
          "... intrinsic $U$-$B$ disperion ..."

    p17: problem with "/refsec:colorcor"

    p18: "... with the host galaxy E(B-V) ..."
          "... with the host-galaxy E(B-V) ..."

    p18: "... 3 - $\sigma$ ..."
          "... 3$\sigma$ ..."

    p18: "... 996cm, ..."
          "... 1996cm, ..."

    p18: "... on the host galaxy extinction ..."
          "... on the host-galaxy extinction ..."

    p19: "... ... are not from all a ..."
          "... ... are not all from a ..."

    Table 7: "... (\S2.5 have ..."
              "... (\S2.5) have ..."

    p19: "... it is treated as a statistical uncertainty."
          "... it is explicitely corrected."

    Fig 3: The bin widths are weird!

    p25: "..., when host-galaxy extinction is ..."
          "..., even when host-galaxy extinction is ..."

    p25: "... have a confirmed type identification ..."
          "... have a confirming spectral type identification ..."

    Caption of figure 8:

          "... that not only can the prior slightly bias the fit cosmology, but it also
           prevents the full E(B-V) uncertainties from being propagated into the cosmological
           confidence regions"

          "... that the prior can improve the precision of the fit cosmology, but that it
           introduces a bias decreases the accuracy of the result."

          Also, when you say "precision", I think you mean accuracy don't you?

    p27: "... I is given by:"
         "... I, is given by:"

    p27: "... any large scale structure information beyond the galaxy redshift
           distortion result from 2dFGRS."

         "... any of the same external constraints, such as those from large scale structure."

    p30: "... they have the greatest weight, "
         "... they have the greatest weight relative to other technics, "

    p31: There it says "1/3 the statistical weight" I just guessed at that number. Since
         there are only 6 Riess SNe used, the value might be more like 1/4.

    p39: The sentance "Note that some ..." as written suggests that the SN flux is
         present in these values with negative values.

    p39: Eliminate JKT - Alex and I confirmed that those JKT images are really INT
         (There was an error in the comment line for the TELESCOPE header keyword.)
       

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