Re: SuF02-012 (fwd)

From: Andy Howell (howell@astro.utoronto.ca)
Date: Wed Mar 10 2004 - 10:10:03 PST

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    This message bounced the first time I sent it to the hstsearch list, so
    I'm sending it again. And I attached both (correct) plots.

    -Andy

    ---------- Forwarded message ----------
    Date: Wed, 10 Mar 2004 09:52:57 -0500 (EST)
    From: Andy Howell <howell@astro.utoronto.ca>
    To: Chris Lidman <clidman@eso.org>
    Cc: ragibbons@lbl.gov, Vallery Stanishev <vall@physto.se>, hstsearch@lbl.gov
    Subject: Re: SuF02-012

    You are right -- I attached the wrong plot! Here is the correct one.
    The ACS plot looks pretty good.

    Your first mail said that it was a combined Subaru and VLT plot. I didn't
    even know there was Subaru data on this one. According to the
    spectroscopy web page we have ESI data as well.

    Any chance you could make a combined ESI, FORS1, Subaru, ACS spectrum,
    maybe combining weighted by the errors? I think Peter has a program to
    do such a thing. If not, if all of these have error spectra, I could
    write something to do the rebinning and combination -- I have most of the
    framework already for my program.

    -Andy

    On 10 Mar 2004, Chris Lidman wrote:

    > Hi Andy,
    > Thanks for the plots. The first one seems to be a plot
    > of SuF02-002. Perhaps, you attached the wrong PostScript file.
    >
    > I've cc'ed this e-mail to Rachel and Vallery as both have been
    > involved in the reduction of the ACS data on this elusive candidate.
    >
    > I attach a comparison plot of the VLT/ACS data that was sent to me
    > by Vallery. The ACS data also show a dip at ~9200 Angstroms.
    > If this is Si4000, then this might point to a type Ia at z=1.26.
    >
    > Cheers, Chris.
    >
    > On Tue, 2004-03-09 at 21:46, Andy Howell wrote:
    > > Chris,
    > > This spectrum is better! I get z ~ 1.26, or z ~ 1.02 (see attached). I
    > > prefer z=1.02.
    > >
    > > -Andy
    > >
    > > On 8 Mar 2004, Chris Lidman wrote:
    > >
    > > > Hi Andy,
    > > > I've combined the Subaru and VLT spectra of SuF02-012 into a
    > > > single spectrum. The spectrum and the associated error spectrum are
    > > > available at
    > > >
    > > > http://www.sc.eso.org/~clidman/
    > > >
    > > > This candidate has been placed at various redshifts, anywhere from
    > > > z=0.9 to z=1.6. The wiggles in the combined spectrum are more
    > > > pronounced, but finding a redshift will be hard.
    > > >
    > > > Cheers, Chris.
    > > >
    >



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