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رقص یک ستاره ی نوزاد !!!
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[تصویر:  13572484011.jpg]







A Wanderer Dances the Dance of Stars and Space
The
Hubble Space Telescope captured a spectacular image of the bright
star-forming ring that surrounds the heart of the barred spiral galaxy
NGC 1097. In this image, the larger-scale structure of the galaxy is
barely visible: its comparatively dim spiral arms, which surround its
heart in a loose embrace, reach out beyond the edges of this frame.


This face-on galaxy, lying 45 million light-years away from Earth in
the southern constellation of Fornax (The Furnace), is particularly
attractive for astronomers. NGC 1097 is a Seyfert galaxy. Lurking at the
very center of the galaxy, a supermassive black hole 100 million times
the mass of our sun is gradually sucking in the matter around it. The
area immediately around the black hole shines powerfully with radiation
coming from the material falling in.

The distinctive ring around
the black hole is bursting with new star formation due to an inflow of
material toward the central bar of the galaxy. These star-forming
regions are glowing brightly thanks to emission from clouds of ionized
hydrogen. The ring is around 5000 light-years across, although the
spiral arms of the galaxy extend tens of thousands of light-years beyond
it.

Image Credit: NASA/ESA/Hubble
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آقایون: کم گوی و گزیده گوی چون در// تا ز اندک تو جهان شود پر!!!
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  ستاره Dash @li 0 374 14-08-2012، 07:17 PM
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