Large scale shearing of the universe from Ariel V X-ray data.
Abstract
An analysis of 25 scans by the Ariel V sky survey instrument has revealed a galactic contribution to the X-ray background of between 2.5 and 7.2% between galactic latitudes of 90 and 20 degrees, respectively. In addition, a 90% confidence upper limit of delta v less than 475 km/s (delta v=200 plus 175 or minus 195 km/s) in the direction of the microwave anisotropy. Significantly, an oblate 12 h X-ray variation with a pole common to the 24 h microwave variation is detected, suggesting the presence of a matter perturbation of more than 1% over a scale greater than 3000 Mpc.
- Publication:
-
Physica Scripta
- Pub Date:
- June 1980
- DOI:
- 10.1088/0031-8949/21/5/011
- Bibcode:
- 1980PhyS...21..650F
- Keywords:
-
- Ariel 5 Satellite;
- Background Radiation;
- Microwave Emission;
- Universe;
- X Ray Sources;
- Anisotropy;
- Data Processing;
- Galactic Radiation;
- Milky Way Galaxy;
- Perturbation Theory;
- Radio Astronomy;
- Sky Surveys (Astronomy);
- Spaceborne Astronomy;
- Astrophysics;
- X-Ray Background:Isotropy