... if the mass is dark, then it's a good guess that there's a black hole there. There are two kinds of systems in which astronomers have found such compact, massive, dark objects: the centers of galaxies (including perhaps our own Milky Way Galaxy), and X-ray-emitting binary systems in our own Galaxy (internet 1). According to a recent review by two prominent astronomists Kormendy and Richstone, eight galaxies ... have supermassive black holes at the center (internet 1). Taken together, these arguments strongly suggest that the cores of these galaxies contain black holes, but these theorie...

• Word Count: 3066
• Approx Pages: 12
• Has Bibliography

... is known as the event horizon. Behind this horizon, the inward pull of gravity is overwhelming and no information about the black hole's interior can escape to the outer universe. Applying the Einstein Field Equations to collapsing stars, Kurt Schwarzschild discovered the critical radius for a given mass ... three usual parameters: mass, electric charge, and angular momentum. Initially simplifying the case by disregarding rotation, we simply get the well-known solution of a point charge. This is not very physically interesting, since it seems highly unlikely that any black hole (or any ce...

• Word Count: 3056
• Approx Pages: 12
• Has Bibliography

... the visible universe? The black hole's surface is known as the event horizon. Behind this horizon, the inward pull of gravity is overwhelming and no information about the black hole's interior can escape to the outer universe. Applying the Einstein Field Equations to collapsing stars, Kurt Schwarzschild discovered the critical radius for a given mass at which matter would collapse into an ... rotating black hole and the area near it, the accretion disk (a region of force-free fields), and an acceleration region outside the plasma. Disk accretion can occur onto supermassive black holes at...

• Word Count: 3068
• Approx Pages: 12
• Grade Level: High School

... the visible universe? The black hole's surface is known as the event horizon. Behind this horizon, the inward pull of gravity is overwhelming and no information about the black hole's interior can escape to the outer universe. Applying the Einstein Field Equations to collapsing stars, Kurt Schwarzschild discovered the critical radius for a given mass at which matter would collapse into an ... rotating black hole and the area near it, the accretion disk (a region of force-free fields), and an acceleration region outside the plasma. Disk accretion can occur onto supermassive black holes at...

• Word Count: 3072
• Approx Pages: 12