A. They have directly measured the gravity of the black hole
B. They have observed the very rapid orbits of stars close to the area
C. They have ovserved comets and asteroids dissappearing into the area
D. They have sent a probe into the area and it did not return
Please Help
2007-04-17 10:21:15 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
E) None of the Above. From the radiation it gives off and the relative mass, see the article below. The Chandra X-Ray telescope was crucial to the discovery.
2007-04-17 10:26:42 · answer #1 · answered by Anonymous · 0⤊ 1⤋
None of the above. There is way to much debris at the center of our galaxy to see anything. The presence of Sagittarius A was found in x-ray images taken of the region which just happened to show gamma ray emissions coming from the presence of what could only be a large black hole.
2007-04-20 16:11:38 · answer #2 · answered by Anonymous · 0⤊ 0⤋
B. the celebs interior the middle of the Galaxy are revolving around the middle way too quickly for there to be in ordinary terms extra stars on the middle. There must be some thing there with extra density and extra gravity than any form of stars ought to account for, for the orbits of the celebs to be so quickly. .
2016-12-10 04:39:42 · answer #3 · answered by galle 4 · 0⤊ 0⤋
Definitely B.
One of my favorite sites, NASA's Astronomy Picture of the Day, has a great time lapse animation of the stars actually moving around Sagitarrius A*.
http://antwrp.gsfc.nasa.gov/apod/ap070114.html
2007-04-17 19:54:04 · answer #4 · answered by Lianfyrr 1 · 0⤊ 0⤋
The fact it is located tens of thousands of light years away pretty much eliminates everything but B.
And congratulations to Campbelp2 for the lofty perch. Nice terse answer too.
2007-04-17 13:00:31 · answer #5 · answered by SAN 5 · 0⤊ 0⤋
I do believe in the black hole theory. But What if the black hole was a worm hole to the other side of our (U) shaped universe? Einstien proved the existance of worm holes. If you think about it. it makes scence
2007-04-17 10:28:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋
I believe that B is the correct answer but however you may have missed other ways they may have come up with it to . Like detection of high frequency radiation coming from that area
2007-04-17 10:27:14 · answer #7 · answered by harold. 4 · 0⤊ 0⤋
A- because God took a bite out of the middle of a Milkyway
and decided to make people wonder how they make them too.
2007-04-17 10:25:54 · answer #8 · answered by Anonymous · 0⤊ 0⤋
http://www.youtube.com/watch?v=uPodMtNc7O8
there are 5 parts this will help you out alot
good luck
2007-04-18 09:59:43 · answer #9 · answered by Larry M 3 · 0⤊ 0⤋
B.
2007-04-17 10:26:56 · answer #10 · answered by campbelp2002 7 · 0⤊ 0⤋