Astrophysics (Index)About

erg

(CGS unit of energy)

The erg is a CGS unit of energy equivalent to the work done by the force of a dyne (a unit of force) pushing over a centimeter distance. An erg is one gram centimeter-squared per second-squared (g·cm²/s²), a dyne being the force necessary to accelerate a gram one centimeter per second-squared. 107 ergs make a joule (the SI unit of energy). Erg remains widely used in astrophysics, as is the CGS system generally.


(physics,unit,energy,CGS,astrophysics)
Further reading:
https://en.wikipedia.org/wiki/Erg
https://www.britannica.com/science/erg-measurement
https://physics.stackexchange.com/questions/235581/are-ergs-commonly-used-in-astrophysics-if-so-is-there-a-specific-reason-for-it

Referenced by pages:
Boltzmann constant (k)
CGS
cooling function
electron volt (eV)
energy
foe
irradiance
joule (J)
Kepler Telescope
nuclear energy generation rate (ε)
solar luminosity (LSun)
stellar flare

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