Abstract
We have observed the cluster Abell 773 with the Ryle Telescope at 15 GHz, and have measured a decrement in the cosmic microwave background radiation (CMB) of −590±116 μJy beam −1 , due to the Sunyaev-Zel'dovich (S-Z) effect. On reasonable assumptions about the structure of the cluster atmosphere, this implies a central temperature decrement of between −790 and −990 μK. Together with the previous detection in A2218, which is significantly different from A773 as regards radiosource confusion, this result confirms the power of the method used, and emphasizes the advantages of interferometric methods over switched-beam telescopes for imaging structure in the CMB
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
