06 July, 2012

Editorial: Astrophysicists Call Plasma Dark Matter, Maintain Confusion

"1st Dark Matter Bridge Discovered Linking Two Galaxy Clusters" says the headline. Half the universe's matter in a 58 million light-year long 'finger', says the article. Universe has 'dark matter skeleton.' it continues... that governs structure formation, it says.

The facts: 

  • Abell 222 and Abell 223 are 'galaxy clusters' 2.7 billion light-years away

  • Data from XMM-Newton and the Subaru Telescope shows an energetic link between them.

  • 10% of the mass in that energetic flow is planets etc

  • 9% is 'hot gas'

 

 Editorial view.

The EU perspective is easy - the rest of the matter in the energy link is a purer form of plasma, sans gas., yes, 'dark-mode' or invisible plasma. 

The Dailygalaxy.com article uses the word 'filament' nine times but only manages to hint at the existence of plasma once, when referring to hot gas. That is most likely because standard cosmology tends to understate plasma's significance and ubiquity; so too with the EM force.


By sidestepping dealing with plasma and electricity, the Academy has already made itself a muffled-giggling-stock by being completely wrong about the sun.

Mal-terminology is another issue. Terms like 'dark matter', 'black holes' and yes, even 'dark mode' plasma are obviously simply borrowings from the Dark Ages. The adjective denotes a lack of knowledge about the subject and is not descriptive at all. This kind of confusing nomenclature is not very conducive to the promotion of popular science, nor proper science.

 Prediction:

These kinds of 'bridges' will be found to be common. Very common, and a closer focus will find them to consist of twisted current pairs.


Original article: credit to http://www.dailygalaxy.com/my_weblog/2012/07/1st-dark-matter-bridge-discovered-linking-two-galaxy-clusters.html

03 July, 2012

Observatory: Primeval Structure Telescope (PaST), also called 21 Centimetre Array (21CMA)

"PaST will consist an array of some10,160 2-meter log periodic antennas spread over several square kilometers. It will capture a detailed radio image of the sky in the range of fifty to two-hundred megahertz. The telescope is built on the high plateau of Ulastai in the west of Xinjiang province, a remote area away from most television and radios signals that may interfere the weak 21 cm background signals." - from wikipedia

PaST or 21CMA, China
China's PaST, or 21CMA. Image from http://21cma.bao.ac.cn/n


Links: 
http://21cma.bao.ac.cn/  Website

Jodrell Bank Radio Telescope (The Lovell Telescope)


Jodrell Bank Radio Telescope
Jodrell Bank Radio Telescope, Cheshire, England. Photo: Smabs Sputzer


This fully steerable 76 m dish became the face of radio astronomy when inaugurated in 1957. Refurbished by Manchester University in 200-2002, the receiver 


Links: 
http://www.jb.man.ac.uk/ Jodrell Bank Centre for Astrophysics
http://www.jodrellbank.net/   Jodrell Bank Discovery Centre
http://www.ianridpath.com/stamps/jodrell.htm The Jodrell bank receiver on postage stamps



01 July, 2012

Observatory: Karl G. Jansky Very Large Array (VLA)

2124 m up, near Socorro, New Mexico, USA, is the the understatedly named Karl G. Jansky Very Large Array.

Twenty-seven 25 m receivers are arranged in a 21 km "Y"
The smallest angular resolution that can be reached is about 0.05 arcseconds at a wavelength of 7 mm.
The frequency coverage is 74 MHz to 50 GHz (400 to 0.7 cm).

I won't rave on about the VLA though, just check out the NRAO's excellent websites under 'Links' on this page.


News:
I'll Still Call It the VLA  June 26, '12



Links: 

Karl G. Jansky - wiki

http://www.vla.nrao.edu

https://science.nrao.edu/facilities/evla

http://www.vla.nrao.edu/genpub/tours/

http://www.nrao.edu/index.php/about/facilities/vlaevla

http://en.wikipedia.org/wiki/Very_Large_Array

http://www.flickr.com/groups/vla/

http://sundog.stsci.edu/