What causes this unusual structure near the center of our Galaxy? The long parallel rays slanting across the top of the above radio image are known collectively as the Galactic Center Radio Arc and jut straight out from the Galactic plane. The Radio Arc is connected to the Galactic center by strange curving filaments known as the Arches. The bright radio structure at the bottom right likely surrounds a black hole at the Galactic center and is known as Sagittarius A*. One origin hypothesis holds that the Radio Arc and the Arches have their geometry because they contain hot plasma flowing along lines of constant magnetic field. Recent images from the Chandra X-ray Observatory appear to show this plasma colliding with a nearby cloud of cold gas.
http://antwrp.gsfc.nasa.gov/apod/ap020521.html
Tuesday, May 21, 2002
Popular Posts
-
The concept of dragons was probably brought to Japan around 2,000 years ago, along with the technology for paddy agriculture. Their images h...
-
...These measures, based on the US Digital Millennium Copyright Act (DMCA) give far too much power to publishers, at the expense of individu...
-
His system, he said, starts with a laser that sends part of its beam into photo detectors which produce electrical signal that feed back to ...
-
Someone that gets it. Service-oriented software, when done correctly in a platform-agnostic way can be flexible, cheap, and can motivate m...
-
...why was this given the file name of skyfall?... Certain information, while not specific as to target, gives the government reason to beli...
-
When it comes to buying equipment, think g, not b. New 802.11g hardware is nearly five times faster than 802.11b gear, and it will interoper...
-
This edition provides a prose rendering of The Epic of Gilgamesh, the cycle of poems preserved on clay tablets surviving from ancient Mesopo...
-
From the bygone debates over DDR vs. RDRAM to the current controversy over Apples DDR implementations, one issue is commonly misunderstood i...
-
In my mind, this is a huge waste of effort. Put a base on Mars instead of the Moon -- there's huge science finds waiting there to be dis...
-
Personally, I believe that consciousness is an emergent property of complex, ordered (yet chaotic) systems which are not necessarily biologi...