Discover Top Posts Tagged with #sse12

Fauna and flora in the Chilean Chajnantor plain

Although it is an ambitious scientific project activities on the ALMA site not only focus on building the world’s most advanced astronomical observatory but also on the historical and environmental aspects in this unique region.

We have a beautiful, fully illustrated book about the fauna and flora in the Chilean Chajnantor plain that is free to download (PDF file, 6.25MB) that is bilingual Spanish/English.

#sse2012 #sse12 #alma #fauna #flora #chile #chajnantor

Have you been "interferometered" yet?

If not you should come down to the Royal Society Summer Science Exhibition and you can see what you would look like through the eyes of the worlds most power radio telescope.

If you have then take a look at our twitpic feed... as you could have uploaded the result for the whole world to see just like my hand:

-- Sam George

#sse12 #sse2012 #radio #alma #telescope #simulator #twitpic

Radio galaxy Centaurus A, as seen by ALMA

#eso #alma #sse12 #sse2012 #radio galaxy #galaxy #astronomy #space #universe

Some ALMA facts..

The Atacama Large Millimeter/sub-millimeter Array (ALMA) is an array of radio telescopes in the Atacama desert of northern Chile.

When ALMA is completed it will consist of:

a giant array of 12-m antennas with baselines up to 16 km

an additional compact array of 7-m and 12-m antennas to greatly enhance ALMA's ability to image extended targets

This is located on the Chajnantor plateau at 5000m altitude. Initially, it will observe at wavelengths in the range 3 mm to 400 μm (84 to 720 GHz).

The antennas can be moved around, in order to form arrays with different distributions of baseline lengths. More extended arrays will give high spatial resolution, more compact arrays give better sensitivity for extended sources.

Each antenna weighs: 115 tonnes! Moving these around at 5000m is not an easy feat. Two custom 28-wheel self-loading heavy haulers were developed. Each is 10 m wide, 20 m long and 6 m high, weighing 130 tonnes. They are powered by twin 500 kW diesel engines!

-- Sam George

#alma #sse12 #sse2012

Atacama Nightsky

#alma #almasse #sse12 #sse2012 #telescope #space #Night Sky

ALMA unveils details of a galaxy far, far away...

ALMA (Atacama Large Millimeter/submillimeter Array) scientists have detected a galaxy that is 12.4 billion light-years away! This was detected via looking at the emission line of Nitrogen in the galaxy. At that distance we are looking at a time that is just 1.3 billion years after the big bang. This means that astronomers are able to see if there is any difference between the contents of galaxies not long after the big bang and now. The result of this work shows that the composition was already close to the elemental composition of the present Universe. Thus suggesting that intense star formation activities had occurred in the early Universe.