Intermediate Angular Scale CMB Anisotropy Induced by Cosmic Strings

Details Intermediate Angular Scale CMB Anisotropy Induced by Cosmic Strings Intermediate Angular Scale CMB Anisotropy Induced by Cosmic Strings

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.5105k&link_type=abstract

American Astronomical Society, 189th AAS Meeting, #51.05; Bulletin of the American Astronomical Society, Vol. 28, p.1342

Mathematics

Logic

Scientific paper

We calculate the angular power spectrum, C_l, of the cosmic microwave background (CMB) induced by cosmic strings at all angular scales greater than ~ 10'. We do this by integrating the Green's functions for the microwave anisotropy multiplied by the stress-energy tensor for the strings to get the anisotropy observed today -- from which we estimate the angular power spectrum. The stress-energy tensor of the strings is calculated by numerical evolution of the string network in a matter-dominated Universe. The Green's functions are calculated by solving the Boltzmann equation for photon transport in the presence of scalar, vector and tensor metric perturbations. Here we display the equations, discuss approximations related to the string simulation, and show the results for the angular power spectrum, C_l. The Green's functions can be applied to other simulations of topological defects.

Affiliated with

Also associated with

No associations

Rating

Intermediate Angular Scale CMB Anisotropy Induced by Cosmic Strings 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 Intermediate Angular Scale CMB Anisotropy Induced by Cosmic Strings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermediate Angular Scale CMB Anisotropy Induced by Cosmic Strings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-817306