Re: jpeg images (fwd)

[Jacco Vink <j.vink@sron.nl>]

Hi Chris & others,

Shouldnt that be a fast moving star, or can it be completely blown away?
I guess, it should be quite massive if ~10 Msun of mass has been dumped
on it. Is there any chance that we could have missed a companian star?
May be Rob Fesen can put some limits on this.

As for the assymetries. It looks like Fe is asymmetric, i.e. no symmetry
at all! Si is non-spherical, but here there seems to be the presence of
jet-like ejecta (at least at one side).

Jacco

On Tue, 2004-05-11 at 16:38, Christopher L. Fryer wrote:
> Hi all,
> 
> Just to add some on the theory end.  We are running a large suite of
> 3-dimensional explosion calculations with detailed abundance calculations.
> Once we get the first set finished, I'll put them on the web.  But let me
> say a few words of caution.  If the asymmetry is in the explosion, and not
> the environment (e.g. the binary+windswept media) around the star prior to
> collapse, then my money is on the iron having the biggest asymmetry.
> 
> My intuition may be wrong here, I'll know more when we've finished this
> suite of simulations and after we get a better handle on the progenitor,
> but this looks a lot more like a binary affected environmnent to me.
> 
> chris
> 
> 
> On 11 May 2004, Jacco Vink wrote:
> 
> > Dear all,
> >
> > I have put jpeg images of individual bands, as well as RGB color images
> > on a webpage using the available 312 ks of observations:
> > http://www.sron.nl/~jvink/casa_vlp . It includes one image suggesting
> > the existence of a counter jet. However, I am not quite sure why the
> > ratio of Si/Mg would bring out such evidence, may be the Jets may have
> > purer Si abundance. At any rate it looks very interesting
> > and worth pondering about. (A similar image I produced in
> > http://arxiv.org/abs/astro-ph/0310518 -New Astron.Rev. 2004, 48, 61-67).
> >
> > Cheers,
> >
> >
> > Jacco
> >
-- 
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