A star orbiting the Milky Way’s giant black hole confirms Einstein was right

Disir

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Sep 30, 2011
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The first sign that Albert Einstein’s theory of gravity was correct has made a repeat appearance, this time near a supermassive black hole.

In 1915, Einstein realized that his newly formulated general theory of relativity explained a weird quirk in the orbit of Mercury. Now, that same effect has been found in a star’s orbit of the enormous black hole at the heart of the Milky Way, researchers with the GRAVITY collaboration report April 16 in Astronomy & Astrophysics.

The star, called S2, is part of a stellar entourage that surrounds the Milky Way’s central black hole. For decades, researchers have tracked S2’s elliptical motion around the black hole. The researchers previously had used observations of S2 to identify a different effect of general relativity, the reddening of the star’s light due to what’s called gravitational redshift (SN: 7/26/18).

Now, they’ve determined that the ellipse rotates over time, what’s known as Schwarzschild precession. That precession is the result of the warping of spacetime caused by massive objects, according to general relativity. A similar precession in Mercury’s orbit had stumped scientists before Einstein came along (SN: 4/11/18).

Pretty cool stuff.
 
The first sign that Albert Einstein’s theory of gravity was correct has made a repeat appearance, this time near a supermassive black hole.

In 1915, Einstein realized that his newly formulated general theory of relativity explained a weird quirk in the orbit of Mercury. Now, that same effect has been found in a star’s orbit of the enormous black hole at the heart of the Milky Way, researchers with the GRAVITY collaboration report April 16 in Astronomy & Astrophysics.

The star, called S2, is part of a stellar entourage that surrounds the Milky Way’s central black hole. For decades, researchers have tracked S2’s elliptical motion around the black hole. The researchers previously had used observations of S2 to identify a different effect of general relativity, the reddening of the star’s light due to what’s called gravitational redshift (SN: 7/26/18).

Now, they’ve determined that the ellipse rotates over time, what’s known as Schwarzschild precession. That precession is the result of the warping of spacetime caused by massive objects, according to general relativity. A similar precession in Mercury’s orbit had stumped scientists before Einstein came along (SN: 4/11/18).

Pretty cool stuff.
I found the original paper,

The authors found a precession variable due to general relativity to be, fSP = 1.10 ± 0.19. It is consistent with GR but the error bar, is on the order of 20%. Measurements were for slightly less than two orbits. A few decades of observation should tighten that up. It's hard to extract Mercury's precession due to the gravitational influence of outer planets.

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The first sign that Albert Einstein’s theory of gravity was correct has made a repeat appearance, this time near a supermassive black hole.

In 1915, Einstein realized that his newly formulated general theory of relativity explained a weird quirk in the orbit of Mercury. Now, that same effect has been found in a star’s orbit of the enormous black hole at the heart of the Milky Way, researchers with the GRAVITY collaboration report April 16 in Astronomy & Astrophysics.

The star, called S2, is part of a stellar entourage that surrounds the Milky Way’s central black hole. For decades, researchers have tracked S2’s elliptical motion around the black hole. The researchers previously had used observations of S2 to identify a different effect of general relativity, the reddening of the star’s light due to what’s called gravitational redshift (SN: 7/26/18).

Now, they’ve determined that the ellipse rotates over time, what’s known as Schwarzschild precession. That precession is the result of the warping of spacetime caused by massive objects, according to general relativity. A similar precession in Mercury’s orbit had stumped scientists before Einstein came along (SN: 4/11/18).

Pretty cool stuff.
Actually according to Einstein's math, the Universe can not exist.......................... People ignore this little fact for some reason
 

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