Re: Vallery's analysis of grism spectra (fwd)

From: Chris Lidman (clidman@eso.org)
Date: Sun Feb 22 2004 - 13:43:38 PST

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    Hi Valerie, Rachel,
      I've just reduced the Subaru spectrum of SuF02-012. The spectrum
    and the error spectrum are available from

    http://www.sc.eso.org/~clidman/#L2742

    The Subaru data has higher S/N that the FORS2 spectrum and it goes
    more into the blue. It would be interesting to see how it compares
    with the VLT and HST spectra of this SN.

    Cheers, Chris.

    On Fri, 2003-12-12 at 02:08, Rachel G. wrote:
    > Hi Chris,
    >
    > > I went through several reductions as I discovered better ways to reduce the data.
    > >
    >
    > Yes, I did as well and can say my reductions are
    > also final.
    >
    > > I do not know how up to date the data on the spectroscopic web page are, but you get
    > > the latest (and I am very much hoping final) reductions at
    > >
    > > http://www.sc.eso.org/~clidman/
    >
    > OK, thanks very much. I'll have a look tomorrow.
    >
    > For now, I've attached a plot that's been sitting on
    > my screen all day and I'm only now getting back to it!
    > I've compared Vallery's reduction of our data, which
    > reproduces my results from last summer very well. The
    > reductions for SuF02-012 look nearly spot on, but there are
    > some differences (in the noise however) between the
    > SuF02-060 reductions. I'm quite certain this is because the
    > extraction direction is well off (pixel) axis in this case,
    > and therefore differences are showing up in how the flux
    > from each pixel has been distributed over wavelength.
    >
    > I'll look at the ground-based spectra in the morning
    > and provide that plot as well for completeness. And will
    > say at that point about Lifan's fits to the grism data.
    >
    > More soon,
    >
    > Rachel
    >
    > On Thu, 11 Dec 2003, Chris Lidman wrote:
    >
    > > Cheers, Chris.
    > >
    > > "Rachel G." wrote:
    > >
    > > > Thanks Vallery.
    > > >
    > > > Rachel
    > > >
    > > > On Thu, 11 Dec 2003, Vallery Stanishev wrote:
    > > >
    > > > > Hi Rachel,
    > > > >
    > > > >
    > > > > > Could you also tell me which ground-based spectra
    > > > > > you used? I'm pretty sure I don't have the best ones. Did
    > > > > > you get them from the spectral web pages?
    > > > > >
    > > > >
    > > > > Yes, I got them from the spectral web pages. For both SNe I took "Chris
    > > > > final reduction 2" of VLT. The GEMINI spectrum of SuF02-60 is "Line
    > > > > cleaned SN (Eric)".
    > > > >
    > > > > Cheers,
    > > > > Vallery
    > > > >
    > > > >
    > > > >
    > > > >
    > >
    >
    >
    >
    >
    >

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