cjo25
Summary and figures of the currently available experimental data on CMB temperature anisotropies. A couple of packages for download, including a C version of the WMAP likelihood code.
NEWS
previous news
- 10.07.03: I am now in Switzerland. News and features on this page.
- 01.07.03: New 'Talks and posters' page here with abstracts and downloads of slides and posters in PDF format.
- 01.07.03: I have come back from Wales and I have put the slides of my seminar here. I am on my way to Switzeland to write up and any other plans can be found here.
- 28.05.03: Less cluttered navigation. Publications now available here. Also, I have added an online research proposal here.
- 16.05.03: Another update, another design :). I have now written my WMAP page with a C version of the likelihood code for download and some recent results.
List of publications with abstracts and links.
List of talks an posters with abstracts and downloads.
|
|
A history of peak detection in CMB anisotropies.C. J. Ödman, A. Melchiorri
Abstract:
In the last few years, experimental measurements of the CMB anisotropy power spectrum have improved dramatically, probing smaller angular scales and the whole spectrum with increasing accuracy. We now have sufficient data to claim that features in the CMB power spectrum have been detected beyond the first peak. In this study, we analyse the CMB anisotropy data using a phenomenological power spectrum made out of a sum of gaussians to test for secondary features in the spectrum. We find that before the generation of the Boomerang98, Maxima and DASI experiments, the only observed feature was the first peak. After that, the increasing amount of data strengthens the significance of a second and third peak. Finally, we perform the analysis using the new Boomerang98, ACBAR and VSA extended array data and find constraints on the power at high l.
Download the poster in PDF format (8.8MB).
|
|
