What is luminosity?

Luminosity

Luminosity is generally understood as a measurement of brightness. Each discipline, however, defines the term differently, depending on what is being measured.

Read more about Luminosity.

Some articles on luminosity:

Super Soft X-ray Source - VY Scl Cataclysmic Variables - V751 Cyg
... V751 Cyg (BB, MW) is a VY Scl CV, has a bolometric luminosity of 6.5 x 1036 erg/s, and emits soft X-rays at quiescence ... The high luminosity (6.5 x 1036 erg/s) is particularly hard to understand in the context of VY Scl stars generally, because observations suggest that the binaries become simple red dwarf + white ... A high luminosity in soft X-rays poses an additional problem of understanding why the spectrum is of only modest excitation." The ratio He II λ4686/Hβ did not exceed ~0.5 in any of the spectra recorded ...
Super Large Hadron Collider
... The High Luminosity Large Hadron Collider (HL-LHC formerly SLHC) is a proposed upgrade to the Large Hadron Collider to be made after around ten years of operation ... The upgrade aims at increasing the luminosity of the machine by a factor of 10, up to 1035 cm−2s−1, providing a better chance to see rare processes ... A collection of different designs of the high luminosity interaction regions is being maintained by the European Organization for Nuclear Research (CERN) ...
Luminosity Function (astronomy) - Schechter Luminosity Function
... The Schechter luminosity function gives the space density of galaxies within a luminosity bin ... of the function is where, and is a characteristic galaxy luminosity where the power-law form of the function cuts off ... The galaxy luminosity function may have different parameters for different populations and environments it is not a universal function ...
Luminosity Function (astronomy)
... In astronomy, the luminosity function gives the number of stars or galaxies per luminosity interval ... Luminosity functions are used to study the properties of large groups or classes of objects, such as the stars in clusters or the galaxies in the Local Group ...
Scattering Theory - Elementary Relations For Luminosity
... The following relations hold (if the target is perfectly opaque) where is the (instantaneous) luminosity ... is the integrated luminosity ...