Black Holes And Neutron Stars

Related: Black Holes Black Holes Explained Black Holes Collide Black Holes Are Fake Black Holes Physics Black Holes Comparison Black Holes 101 Black Holes Muse

Wiki info

In 1915, Albert Einstein developed his theory of general relativity, having earlier shown that gravity does influence light's motion. Only a few months later, Karl Schwarzschild found a solution to the Einstein field equations, which describes the gravitational field of a point mass and a spherical mass. A few months after Schwarzschild, Johannes Droste, a student of Hendrik Lorentz, independently gave the same solution for the point mass and wrote more extensively about its properties. This solution had a peculiar behaviour at what is now called the Schwarzschild radius, where it became singular, meaning that some of the terms in the Einstein equations became infinite. The nature of this surface was not quite understood at the time. In 1924, Arthur Eddington showed that the singularity disappeared after a change of coordinates (see Eddington–Finkelstein coordinates), although it took until 1933 for Georges Lemaître to realize that this meant the singularity at the Schwarzschild radius was a non-physical coordinate singularity. Arthur Eddington did however comment on the possibility of a star with mass compressed to the Schwarzschild radius in a 1926 book, noting that Einstein's theory allows us to rule out overly large densities for visible stars like Betelgeuse because "a star of 250 million km radius could not possibly have so high a density as the sun. Firstly, the force of gravitation would be so great that light would be unable to escape from it, the rays falling back to the star like a stone to the earth. Secondly, the red shift of the spectral lines would be so great that the spectrum would be shifted out of existence. Thirdly, the mass would produce so much curvature of the space-time metric that space would close up around the star, leaving us outside (i. e. , nowhere). "


Found this binary system of a Black Hole and a Neutron ...
Found this binary system of a Black Hole and a Neutron ...
Scientists ‘Observe Black Hole Swallowing A Neutron Star ...
Scientists ‘Observe Black Hole Swallowing A Neutron Star ...
Black holes and neutron stars merge unseen in dense star ...
Black holes and neutron stars merge unseen in dense star ...
Stellar Screenshots | Page 234 | Frontier Forums
Stellar Screenshots | Page 234 | Frontier Forums
Insight-HXMT team releases new results on black hole and ...
Insight-HXMT team releases new results on black hole and ...
Black hole news: City-sized neutron star on verge of ...
Black hole news: City-sized neutron star on verge of ...
Sell, Buy or Rent Black Holes, White Dwarfs and Neutron ...
Sell, Buy or Rent Black Holes, White Dwarfs and Neutron ...
"The First Ever" --Cosmic Sleuths Witness Birth of a Black ...
"The First Ever" --Cosmic Sleuths Witness Birth of a Black ...
LIGO may have seen its first black hole and neutron star ...
LIGO may have seen its first black hole and neutron star ...
A new theory for how black holes and neutron stars shine ...
A new theory for how black holes and neutron stars shine ...
Astronomers Spot Huge Black Hole Swallowing Neutron Star
Astronomers Spot Huge Black Hole Swallowing Neutron Star
Scientists ‘Observe Black Hole Swallowing A Neutron Star ...
Scientists ‘Observe Black Hole Swallowing A Neutron Star ...
Scientists Are 99% Sure They Just Detected a Black Hole ...
Scientists Are 99% Sure They Just Detected a Black Hole ...
Did a Neutron-Star Collision Make a Black Hole? | Space
Did a Neutron-Star Collision Make a Black Hole? | Space
Black Holes and Neutron Stars in the Whirlpool Galaxy
Black Holes and Neutron Stars in the Whirlpool Galaxy
Life Cycle of Black Holes Video with Lesson Transcript ...
Life Cycle of Black Holes Video with Lesson Transcript ...
Scientists may have spotted a black hole and a neutron ...
Scientists may have spotted a black hole and a neutron ...
Study finds measurements of neutron stars
Study finds measurements of neutron stars
A black hole and neutron star collision observed by ...
A black hole and neutron star collision observed by ...
Black Holes Neutron Stars White Dwars Space And Time
Black Holes Neutron Stars White Dwars Space And Time
A new theory for how black holes and neutron stars shine ...
A new theory for how black holes and neutron stars shine ...
Researchers Just Detected a Black Hole Devouring a Neutron ...
Researchers Just Detected a Black Hole Devouring a Neutron ...
Mass Chart For Black Holes And Neutron Stars Photograph by ...
Mass Chart For Black Holes And Neutron Stars Photograph by ...
Scientists May Have Just Found The Youngest Neutron Star Ever
Scientists May Have Just Found The Youngest Neutron Star Ever
How to Glo up: Black Hole-Neutron Star Mergers | astrobites
How to Glo up: Black Hole-Neutron Star Mergers | astrobites
Black holes and neutron stars coalesce in dense star ...
Black holes and neutron stars coalesce in dense star ...
Physics-Astronomy.org
Physics-Astronomy.org
Black Hole Seen Engulfing A Massive Neutron Star
Black Hole Seen Engulfing A Massive Neutron Star
Like Pac-Man: Scientists Believe They Detected a Black ...
Like Pac-Man: Scientists Believe They Detected a Black ...