Kroupa initial mass function
E887941
The Kroupa initial mass function is a widely used mathematical description of the distribution of stellar masses at birth, refining earlier forms by incorporating a multi-part power-law that better matches observations across low- and high-mass stars.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
initial mass function
ⓘ
stellar population model ⓘ |
| appliesTo |
resolved stellar populations in nearby galaxies
ⓘ
stars in the Milky Way ⓘ stellar populations ⓘ |
| assumes |
single-star IMF for most applications
ⓘ
universal form in the Milky Way disk ⓘ |
| basedOn | observed stellar mass distributions ⓘ |
| characterizedBy |
different slopes at low and high stellar masses
ⓘ
piecewise power-law slopes ⓘ |
| comparedWith |
Chabrier initial mass function
NERFINISHED
ⓘ
Salpeter initial mass function NERFINISHED ⓘ |
| describes | distribution of stellar masses at birth ⓘ |
| field |
astrophysics
ⓘ
cosmology ⓘ galactic astronomy ⓘ stellar astrophysics ⓘ |
| hasLowerMassLimit | approximately 0.01 solar masses ⓘ |
| hasMathematicalForm | multi-part power-law ⓘ |
| hasSlopeAbove0.5SolarMasses | approximately -2.3 in logarithmic form ⓘ |
| hasSlopeBelow0.5SolarMasses | approximately -1.3 in logarithmic form ⓘ |
| hasUpperMassLimit | approximately 100 solar masses ⓘ |
| hasVariant |
bottom-light Kroupa IMF
NERFINISHED
ⓘ
canonical Kroupa IMF ⓘ top-heavy Kroupa IMF NERFINISHED ⓘ |
| influences |
black hole and neutron star formation rates in simulations
ⓘ
integrated light of stellar populations ⓘ ionizing photon production in galaxies ⓘ rate of core-collapse supernovae in models ⓘ |
| isAlternativeTo | log-normal plus power-law IMFs ⓘ |
| isStandardChoiceIn |
many N-body simulations of star clusters
ⓘ
many extragalactic stellar population studies ⓘ |
| namedAfter | Pavel Kroupa NERFINISHED ⓘ |
| publishedIn | Monthly Notices of the Royal Astronomical Society NERFINISHED ⓘ |
| refines | Salpeter initial mass function NERFINISHED ⓘ |
| relatedTo |
galactic stellar mass function
ⓘ
star formation theory ⓘ stellar evolution ⓘ |
| usedFor |
chemical evolution models of galaxies
ⓘ
cosmological simulations with baryons ⓘ estimating stellar mass-to-light ratios ⓘ estimating total stellar mass of galaxies ⓘ galaxy evolution modeling ⓘ simulations of star clusters ⓘ stellar population synthesis ⓘ |
| yearProposed | 2001 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.