Non-isotropy in the CMB power spectrum in single field inflation

Details Non-isotropy in the CMB power spectrum in single field inflation Non-isotropy in the CMB power spectrum in single field inflation

2007-03-16

arxiv.org/abs/astro-ph/0703455v2

Phys.Rev.D80:023526,2009

Astronomy and Astrophysics

Astrophysics

25 pages, 12 figures. In this revised version, we include the Integrated Sachs-Wolfe effect, which was missing from the origin

Scientific paper

10.1103/PhysRevD.80.023526

Contaldi et al. [1] have suggested that an initial period of kinetic energy domination in single field inflation may explain the lack of CMB power at large angular scales. We note that in this situation it is natural that there also be a spatial gradient in the initial value of the inflaton field, and that this can provide a spatial asymmetry in the observed CMB power spectrum, manifest at low multipoles. We investigate the nature of this asymmetry and comment on its relation to possible anomalies at low multipoles.

Affiliated with

Also associated with

No associations

Rating

Non-isotropy in the CMB power spectrum in single field inflation 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 Non-isotropy in the CMB power spectrum in single field inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-isotropy in the CMB power spectrum in single field inflation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-432713