Foreground analysis from the 1-year Wilkinson Microwave Anisotropy Probe (WMAP) data

Details Foreground analysis from the 1-year Wilkinson Microwave Anisotropy Probe (WMAP) data Foreground analysis from the 1-year Wilkinson Microwave Anisotropy Probe (WMAP) data

2004-05-26

arxiv.org/abs/astro-ph/0405523v3

Int.J.Mod.Phys. D14 (2005) 1273

Astronomy and Astrophysics

Astrophysics

For high-resolution paper see http://www.nbi.dk/~chiang/wmap.html In the revised version we add a new section for cross correl

Scientific paper

10.1142/S0218271805007280

We present a detailed analysis on the phases of the WMAP foregrounds (synchrotron, free-free and dust emission) of the WMAP K-W bands in order to estimate the significance of the variation of the spectral indices at different components. We first extract the spectral-index varying signals by assuming that the invariant part among different frequency bands have 100% cross-correlation of phases. We then use the minimization of variance, which is normally used for extracting the CMB signals, to extract the frequency independent signals. Such a common signal in each foreground component could play a significant role for any kind of component separation methods, because the methods cannot discriminate frequency independent foregrounds and CMB.

Affiliated with

Also associated with

No associations

Rating

Foreground analysis from the 1-year Wilkinson Microwave Anisotropy Probe (WMAP) data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Foreground analysis from the 1-year Wilkinson Microwave Anisotropy Probe (WMAP) data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Foreground analysis from the 1-year Wilkinson Microwave Anisotropy Probe (WMAP) data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-78515