Characteristic microwavebackground distortions from collapsing spherical domain walls
Abstract
We analyze the magnitude and angular pattern of distortions of the microwave background by collapsing spherical domain walls. We find a characteristic pattern of redshift distortions of red or blue spikes surrounded by blue disks. The width and height of a spike is related to the diameter and magnitude of the disk. A measurement of the relations between these quantities thus can serve as an unambiguous indicator for a collapsing spherical domain wall. From the redshift distortion in the blue disks we find an upper bound on the surface energy density of the walls σ<~8 MeV^{3}.
 Publication:

Physical Review Letters
 Pub Date:
 October 1990
 DOI:
 10.1103/PhysRevLett.65.2229
 Bibcode:
 1990PhRvL..65.2229G
 Keywords:

 Gravitational Collapse;
 Red Shift;
 Relic Radiation;
 Angular Distribution;
 Black Holes (Astronomy);
 Bosons;
 Domain Wall;
 Schwarzschild Metric;
 Astrophysics;
 98.80.Cq;
 Particletheory and fieldtheory models of the early Universe