Which of the following is not an observation that astronomers have made of our galactic center?

0 votes
    The density of star systems near the galactic center is about a million times higher than in our local region.
     Doppler broadening of infrared spectral lines indicates rapid circulation of gas near the center of the galaxy.
     Visible-light observations indicate a dark region of space caused by the presence of a supermassive black hole.
     Dust prevents optical telescopes from seeing farther than about 1/10th of the way to the galactic center.
     Extended filaments of material about 100 parsecs in dimension suggest the presence of strong magnetic fields.
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

0 votes
Visible-light observations indicate a dark region of space caused by the presence of a supermassive black hole.
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)



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