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Listening to Cosmic Messages - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


Post subject: Listening to Cosmic Messages
Posted: Sun Jul 09, 2006 2:58 pm
 
Lieutenant

Joined: Tue Jun 13, 2006 4:22 am
Posts: 1
Location: 25.9S 28.1E
The Mileura Widefield Array (MWA) is a triple purpose, low cost radio telescope with wide utility. The array comprises 500 “antenna-tiles”, each with 16 crossed dipoles, distributed over a region 1.5km across. The design trades complexity in hardware and software subsystems for massive computational power.

The MWA will be built at an extraordinarily radio-quiet site in Western Australia. The first phase is designed to operate in VHF band. It targets the study of 21 cm hydrogen emissions from the cosmological Epoch of Reionization (EOR), transient radio sources and space weather phenomena. The 21 cm EOR signals are redshifted by a factor of between 6 and 20 due to the expansion of the universe. It may shed light on how galaxies formed.

There is a short (4 page), but informative download on the MWA http://www.ursi.org/Proceedings/ProcGA05/pdf/. Look for J04.6(01286).pdf in the alpha-index. Background on cosmological expansion and redshift can be found at http://www.einsteins-theory-of-relativity-4engineers.com/cosmology.html.





Posted  11/12/2012
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