A SEARCH FOR PRIMORDIAL ANISOTROPIES IN THE COSMIC MICROWAVE BACKGROUND-RADIATION - FIRST OBSERVATIONS AT 13.5 GHZ WITH THE COSMIC-ANISOTROPY-TELESCOPE

Authors
OSULLIVAN C YASSIN G WOAN G SCOTT PF SAUNDERS R ROBSON M POOLEY G LASENBY AN KENDERDINE S JONES M HOBSON MP DUFFETSMITH PJ
Citation
C. Osullivan et al., A SEARCH FOR PRIMORDIAL ANISOTROPIES IN THE COSMIC MICROWAVE BACKGROUND-RADIATION - FIRST OBSERVATIONS AT 13.5 GHZ WITH THE COSMIC-ANISOTROPY-TELESCOPE, Monthly Notices of the Royal Astronomical Society, 274(3), 1995, pp. 861-868
Citations number
22
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
274
Issue
3
Year of publication
1995
Pages
861 - 868
Database
ISI
SICI code
0035-8711(1995)274:3<861:ASFPAI>2.0.ZU;2-4
Abstract
We report the first observations of the cosmic microwave background ra diation (CMBR) at 13.5 GHz made with the Cosmic Anisotropy Telescope ( CAT) near Cambridge. After removal of foreground ra;iia sources bright er than 10 mJy using the Ryle Telescope (RT), the map shows evidence f or residual structure on a scale of approximately 1/2 degrees with an rms variation of 18 mJy. We intend to use multifrequency measurements to distinguish between Galactic and CMBR components.