[Cosmo-media] festiwal nauki (fwd)

[Bartosz Lew]

i'll read the paper, but meaybe I made a thought shortcut, but isn't all
the non-gaussian signal found in WMAP because of eg. foreground
"contamination" - like point like extragallactic sources or something
similar like remenants from not perfect galactic emmision template ?

bart.


On Wed, 14 Apr 2004, Boud Roukema wrote:

>
> On Wed, 14 Apr 2004, Bartosz Lew wrote:
>
> > another interesting thing for simple inflation models and against topology
> > would be the lack of non-gaussian signal in WMAP map at lest downto the
> > threshold of the sensitivity.
>
> Ggngngngngn!!!
>
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
> four legs good, two legs bad;
>
> (Please read the above out aloud to make sure you've learnt it properly.)
>
> So: How many legs are good?
>
>
> Lots of people have found non-gaussian signal in WMAP data!!!
>
> If you look at page 8 of astro-ph/0402608 (i recommend this as quite
> an interesting paper to read), you'll see a reference to:
>
>
> Detection of non-Gaussianity in the WMAP 1-year data using spherical
> wavelets - P. Vielva, E. Martinez-Gonzalez, R. B. Barreiro,
> J. L. Sanz, L. Cayon
> http://de.arXiv.org/abs/astro-ph/0310273
>
>
> And if you look at:
> http://adjani.astro.uni.torun.pl:9673/zwicky/CosmoNews
> you'll also find:
>
>
> multipole vector analysis of WMAP data in favour of non-Gaussianity and cross-correlations of fluctuations on scales 2 < l < 8
> http://de.arXiv.org/abs/astro-ph/0310511 #
>
>
> Non-Gaussianity of the derived maps from the first-year WMAP data
> Authors: Lung-Yih Chiang (1), Pavel D. Naselsky (1,2), Oleg V. Verkhodanov (1,3), Michael J. Way
> http://de.arxiv.org/abs/astro-ph/0303643
>
>
> Wavelets and WMAP non-Gaussianity - Pia Mukherjee, Yun Wang
> http://de.arXiv.org/abs/astro-ph/0402602
> (posted on astro-ph just a few minutes before our article!)
>
>
> gaussianity good, non-gaussianity bad;
> gaussianity good, non-gaussianity bad;
> gaussianity good, non-gaussianity bad;
> gaussianity good, non-gaussianity bad;
> gaussianity good, non-gaussianity bad;
> gaussianity good, non-gaussianity bad;
>
> Remember to say this before you go to sleep each night.
>
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