From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Sun Jul 13 2003 - 14:30:55 PDT
On Sun, Jul 13, 2003 at 02:18:21PM -0700, Greg Aldering wrote:
> "... that prefer a non-zero ..." I think this is too weak and invites
> a challenge to the existance of the stretch luminosity relation. The
> original "require" rather than "prefer" does not seem like an overstatement
> given our evidence and that from other groups for the existence of such
> a relation. Saul and I discussed this on Friday, and I thought that he
> accepted this.
I also like "require" better, but Saul sent me prefer, so that's what I
had put in. I will put it back.
> One other comment I'd like on the record - and which maybe we can do something
> with - is that the HST coadded images are now good enough to classify the
> host types. This is something we had asked Mark Sullivan to do, but which
> he never did. I then tried to make coadded images, but did not have the
> correct spatial transformations (which of course Rob has from his SN fits
> and the "starter" transformations from Alex Conley). So, I think we should
> classify the hosts, provide the classification on the Sullivan/Ellis system,
> and then note whether we can see any obvious correlation between the SN
> location in the galaxy and the measure E(B-V). I suggest that this is amounts
> to one more column in Table 3, and a few lines when we discuss extinction.
> Since this will be need to be done eventually, I will start working on it.
Don't rush; it's not going to go into this paper in any event. That's
enough new information that it opens a huge Pandora's box, and also
isn't fair for us to do at this point. Why do we list the types if we
don't say anything about it? And if we say something about it, it's
adding enough that it's not fair to add it to the paper post-referee.
And we don't know what it will bring up. It's simply too late to do
this now for *this* paper. If you think it needs to get out right away,
write a Letter that does the Sullivan stuff on this paper and submit it
in the next few weeks.
If we're worried about somebody else doing it first, the solution is
just to delete the greyscale images. But this level of scope will not
be added to this paper at this point. (I'm going to send this thing to
the editor first thing tomorrow morning at the very latest. No new
major changes can go in at this point, and new text like that would be a
major change.)
-Rob
-- --Prof. Robert Knop Department of Physics & Astronomy, Vanderbilt University robert.a.knop@vanderbilt.edu
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