[Shape-univ] Re: tesing dodec

[Boud Roukema]

Witam,

> If you think this could be interesting to others you can reply or cc
> your opinion on shape-univ.

Pewnie jest to interesujący dla shape-univ! :)

Daję odpowiedź chyba niedługi...

pozdr
boud


On Sat, 29 Jan 2005, Bartosz Lew wrote:

>
> Czesc Boud.
>
> I have a new idea.
> I've just compiled the healpix soft and generated a map from
> previously calculated power spectrum from new cmbfast package.
>
> eg. see
> http://adjani.astro.uni.torun.pl/~blew/praca/topology/moj-l04-08-anim.gif
> or if it's too slow moj-l04-08-anim2.gif :))
>
> I was just thinking about that tast of significance of the signal
> you've found and what you said that this is a lot of work doesn's seem
> to be right to me now. well imagine I provide you a new simulated
> map. in fits format for standard LCDM WMAP model in WMAP resolution
> and pixelisation scheme. you put this through you pileline for dodec just
> to see
> what comes out. the rms signal or peak-to-peak dispersion would define
> the valid detection threshold for the real map. isn't that right ?
>
> it doesn't matter that the simulation is performed for simply
> connected space. - even better. in fact it's similar as doing the same
> thing but on the realmap but with nonphysical case of zero rotation.
>
> I'll try to do it tommorow on my own with your package if I'll manage
> to find out how it works and compile it correctly.
>
> what do you think. of couser to treat this seriously I must pay more
> attention to noise thing in each pixel, size of beam etc but as I
> remember I read some good publication about this stuff recently so
> perhaps this isn't big problem.
>
> the bigger problem could possibly arise when I'd like to simulate the
> map for some non-trivial topology to get some strong signal in a shape
> of spikes in circles correlation function, like cornish et al. did.
>
> If you think this could be interesting to others you can reply or cc
> your opinion on shape-univ.
>
> bartek
>
>