WMAP5

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Alessandro Melchiorri
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Post by Alessandro Melchiorri » September 13 2007

Should be out "soon" !

Hans Kristian Eriksen
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Re: WMAP5

Post by Hans Kristian Eriksen » September 13 2007

Alessandro Melchiorri wrote:Should be out "soon" !
Pff..! What sort of a comment is that?! First of all, "soon" can mean anything. Second, references are, as always, greatly appreciated! :-)

Alessandro Melchiorri
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Post by Alessandro Melchiorri » September 23 2007

ehm... the reference comes from a recent talk by Lyman Page.
Concerning the 'soon'....it seems that they are writing up the
main papers, so perhaps end of the year ?

cheers
Ale

Alessandro Melchiorri
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Post by Alessandro Melchiorri » March 03 2008

Hi, I just heard that it should be out this week...anyone can confirm ?
ciao
Alessandro

Kate Land
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Post by Kate Land » March 04 2008

A birdie told me this week... but we've heard that before!

Ilian Iliev
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Post by Ilian Iliev » March 04 2008

More to the point - do you expect anything important to change significantly?

Alessandro Melchiorri
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Post by Alessandro Melchiorri » March 05 2008

I guess they will have better polarization results. sigma_8 may change a bit.
tau and n_s too...
Most interesting thing will be non gaussianity and the possible confirmation of the several anomalies...

ciao
Ale

Antony Lewis
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Re: WMAP5

Post by Antony Lewis » March 05 2008

WMAP5 is now out:

http://lambda.gsfc.nasa.gov/product/map ... graphy.cfm

Kevin M Huffenberger
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Post by Kevin M Huffenberger » March 06 2008

Just plotted the 5 year power spectrum versus 3 year. Difference looks bigger than I expected.

Image

Sarah Bridle
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Post by Sarah Bridle » March 06 2008

Interesting, thanks! Looks like some change in some calibration(s)?

Alessandro Melchiorri
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Post by Alessandro Melchiorri » March 06 2008

Thanks! very interesting...I would say beam calibration perhaps ?
I wonder how TE compares...

Hans Kristian Eriksen
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Post by Hans Kristian Eriksen » March 06 2008

Yes, it's the revised beams. *Huge* difference -- much larger than anybody expected, given their original claims in the 3-yr release, I think. Essentially, from what I've seen so far, WMAP5 seems like a pretty nice bug fix, but not really a whole lot more.. :-)

Niayesh Afshordi
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Post by Niayesh Afshordi » March 10 2008

FYI, we had two back to back workshops on early universe and non-gaussianity at PI. Most of talks are now available online. In particular Eiichiro gave two talks on WMAP5 results, that you can watch at: http://www.perimeterinstitute.ca/News/I ... p_results/

You can watch rest of the talks (mostly related to primordial non-gaussianity) through http://pirsa.org/

Rich Savage
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Post by Rich Savage » August 21 2008

Might be worth taking a moment to remember the sorts of error bars we were used to looking at six or seven years ago. Pretty remarkable progress!

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