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The Jeans instability is a concept in astrophysics that describes an instability that leads to the gravitational collapse of a cloud of gas or dust. [1] It causes the collapse of interstellar gas clouds and subsequent star formation. It occurs when the internal gas pressure is not strong enough to prevent the gravitational collapse of a region ...
Gravitational collapse of a massive star, resulting in a Type II supernova. Gravitational collapse is the contraction of an astronomical object due to the influence of its own gravity, which tends to draw matter inward toward the center of gravity. [1] Gravitational collapse is a fundamental mechanism for structure formation in the universe.
The most basic gravitational stability analysis is the Jeans criteria, which addresses the balance between self-gravity and thermal pressure in a gas. In terms of the two above stability conditions, the system is stable if: i) thermal pressure balances the force of gravity, and ii) if the system is compressed slightly, the outward pressure ...
On the morning of Aug. 4, 1917, a methane gas explosion at the Western Kentucky Coal Company’s No. 7 mine in Webster County killed 62 of the 153 men underground at the time. The other 91 men in ...
The free-fall time is the characteristic time that would take a body to collapse under its own gravitational attraction, if no other forces existed to oppose the collapse.. As such, it plays a fundamental role in setting the timescale for a wide variety of astrophysical processes—from star formation to helioseismology to supernovae—in which gravity plays a dominant ro
The Lexington location will be situated at 2450 Polo Club Blvd. Huck’s was established in 1974 and operates 120 locations. Kroger Gas. There are nearly 1,000 Kroger Gas Station locations across ...
The man decided to buy a $50 scratch-off ticket on a whim.
WBKO (channel 13) is a television station in Bowling Green, Kentucky, United States, affiliated with ABC, Fox, and The CW Plus. It is owned by Gray Media alongside Telemundo affiliate WBGS-LD (channel 34). The two stations maintain studios on Russellville Road (US 68/KY 80) near its junction with Interstate 165 on the west