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 GALACTIC
CENTRAL
- Home of the Big Energy Party -
the place all stage 1
technology-using entities
in the Milky-Way galaxy recognize as the Primary
Navigational Reference Point for Interstellar
Travel
Right: Galactic Central
seen by Chandra Radio Telescope
Below: Ultra-Close-up of Black
Hole
Central Axis of Galaxy Seen in Radio
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Above:
Radio Telecsope Photo of Black Hole
(light colored region) at Center of Milky-Way:
The Engine, Heart, Recycling Bin,
Quantum Linkage Axis, Primary Reference Point
and Ultimate Research Goal for All Conscious life in our
Galaxy
Pulling out a bit we see the complex
environment at the Galactic Heart
Sgr A is the location of the Black-Hole - notice
the plasma rings above it
(labelled 'Arc' )
in both pics |
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The
Galactic Center - A Radio Mystery
Credit:
N. E. Kassim, D. S. Briggs, T. J. W. Lazio, T. N. LaRosa,
J. Imamura (NRL/RSD)
Explanation: Tuning in to the center of our Milky Way
galaxy, radio astronomers explore a complex, mysterious
place. A premier high resolution view, this startlingly
beautiful picture covers a 4x4 degree region around the
galactic center. It was constructed from 1 meter wavelength
radio data obtained by telescopes of the Very Large Array
near Socorro, New Mexico, USA.
The galactic center itself is at the edge of the extremely
bright object labeled Sagittarius (Sgr) A, suspected of
harboring a million solar mass black hole. Along the
galactic plane which runs diagonally through the image are
tortured clouds of gas energized by hot stars and round-shaped
supernova remnants (SNRs) - hallmarks of a violent and energetic
cosmic environment. But perhaps most intriguing are the
arcs, threads, and filaments which abound in the scene.
Their uncertain origins challenge present theories of the
dynamics of the galactic center. |
Pulling out even more from the absolute galactic center,
we see the familiar looking clusters of stars, gas and dust
in the galactic plane
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"The size of M.W.'s Black Hole has been hard to
determine because of the masking matter around it. The mass
has been estimated to be about 3.2 to 4 million solar masses.
Early estimates placed the diamter of a sphere to its event
horizon at about 23 million kilometers (14 million miles).
Recently, studies done by penetrating radio waves, using
radio telescopes, has shed light on its dimensions, summarized
in this diagram at right:
The radio wave results have changed this size to about 300
million kilometers (186 million miles)(for reference, recall
that the M.W. center is about 26 l.y. from Earth). This
may not actually pin down the more meaningful event horizon
size, here referred to as the Black Hole shadow; the radio
wave horizon may measure the outer extent of excited matter
associated with the Black Hole. The shadow size may eventually
be determined using gravitational lensing effects extractable
from a Very Long Baseline Array of radio telescopes."
-ref. http://rst.gsfc.nasa.gov/Sect20/A6.html |
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