IVOA Vocabulary: VOTheory Physical Quantities

This is the description of the namespace http://docs.g-vo.org/rdf/theory/PhysicalQuantities as of 2019-02-27.

This vocabulary is not yet approved by the IVOA. This means that terms can still disappear without prior notice.

Concepts in this vocabulary are intended to be used to describe physical quantities in SimDM classes. To suggest new concepts or submit corrections, contact support.votheory@obspm.fr.

Predicate	Label	Description	Broader	Narrower
#AV	AV Visual extinction in the visible	Visual extinction in the visible (in magnitude)	#PhysicalQuantity
#AbsorptionFrequency	Absorption Frequency		#PhysicalQuantity
#Abundance	Abundance		#PhysicalQuantity
#AdiabaticExponent	Adiabatic Exponent gamma		#PhysicalQuantity
#AdiabaticGradient	Adiabatic Gradient		#PhysicalQuantity
#Age	Age		#PhysicalQuantity
#Albedo	Albedo		#PhysicalQuantity
#AngularMomentum	Angular Momentum		#PhysicalQuantity
#AngularVelocity	Angular Velocity Omega		#PhysicalQuantity	#SurfaceAngularVelocity
#AntennaTemperature	Antenna Temperature		#PhysicalQuantity
#AverageDensity	Average Density		#PhysicalQuantity
#AxisRatio	Axis ratio		#PhysicalQuantity
#AzimuthalOrder	Azimuthal Order		#PhysicalQuantity
#BaryonDensity	Baryon Density		#Density
#BreakFrequency	Break Frequency		#PhysicalQuantity
#CellPosition	Cell Position		#PhysicalQuantity
#Charge	Charge		#PhysicalQuantity	#GrainCharge
#ColumnDensity	Column Density		#PhysicalQuantity
#CoolingRate	Cooling Rate		#PhysicalQuantity
#DarkEnergyDensity	Dark Energy Density omega_DE omega_lambda	Ratio of dark energy density to critical density	#Density
#Density	Density		#PhysicalQuantity	#RadiationDensity #BaryonDensity #DarkEnergyDensity #MatterDensity #ProtonDensity
#Distance	Distance		#PhysicalQuantity
#DistanceToTheCenterOfTheStar	Distance To The Center Of The Star R		#PhysicalQuantity
#EddingtonFactor	Eddington Factor		#PhysicalQuantity
#EddingtonLimit	Eddington Limit		#PhysicalQuantity
#EddingtonLuminosity	Eddington Luminosity		#PhysicalQuantity
#EffectiveTemperature	Effective Temperature		#Temperature
#ElectronTemperature	Electron Temperature		#PhysicalQuantity
#Emissivity	Emissivity		#PhysicalQuantity
#Energy	Energy		#PhysicalQuantity
#EnergyDensity	Energy Density		#PhysicalQuantity
#EquivalentWidth	Equivalent Width		#PhysicalQuantity
#EscapeProbability	Escape Probability		#PhysicalQuantity
#EscapeSpeed	Escape Speed		#PhysicalQuantity
#ExcitationTemperature	Excitation Temperature		#Temperature
#F0ToF1	F0/F1	Frequency compared to the fundamental sound Frequencty	#PhysicalQuantity
#FeToH	Fe/H		#PhysicalQuantity
#FirstOvertone	First Overtone F1		#PhysicalQuantity
#Frequency	Frequency		#PhysicalQuantity	#FrequencyRange
#FrequencyOfHighAmplitudeModes	Frequency of High Amplitude Modes		#PhysicalQuantity
#FrequencyRange	Frequency Range Freq range		#Frequency
#FundamentalMode	Fundamental Mode		#PhysicalQuantity
#FundamentalRadialMode	Fundamental Radial Mode F0		#PhysicalQuantity
#G0	G0	Scaling factor to the Habing interstellar radiation field	#PhysicalQuantity
#GasPressure	Gas Pressure		#PhysicalQuantity
#GasTemperature	Gas Temperature		#Temperature
#GrainAlbedo	Grains Albedo		#PhysicalQuantity
#GrainAnisotropyFactor	Grains Anisotropy Factor		#PhysicalQuantity
#GrainCharge	Grain Charge		#Charge
#GrainMaximumSize	Grains Maximum Size	Maximum size of a grain size distribution	#PhysicalQuantity
#GrainMinimumSize	Grains Minimum Size	Minimum size of a grain size distribution.	#PhysicalQuantity
#GrainRadius	Grain Radius		#PhysicalQuantity
#GrainSizeDistributionIndex	Grains Size Distribution Index	Index of a power-law describing a grains size distribution. For example, -3.5 is the typical value given by Mathis, Rumpl, Nordsiek (1977, ApJ, 217, 425).	#PhysicalQuantity
#GrainSurface	Grain Surface		#PhysicalQuantity
#GrainTemperature	Grain Temperature		#PhysicalQuantity
#HeatingRate	Heating Rate		#PhysicalQuantity	#PhotoelectricHeatingRate
#HubbleConstant	Hubble Constant		#PhysicalQuantity
#HubbleParameter	Hubble Parameter h	Ratio of Hubble constant to 100km/s/Mpc	#PhysicalQuantity
#HydrogenCentralFraction	Hydrogen Central Fraction Hcent		#PhysicalQuantity
#HydrogenMassFraction	Hydrogen Mass Fraction		#PhysicalQuantity
#InertialMode	Inertial Mode		#PhysicalQuantity
#Intensity	Intensity		#PhysicalQuantity
#InternalEnergy	Internal Energy		#PhysicalQuantity
#InterstellarStandardRadiationField	Interstellar Standard Radiation Field ISRF	The Interstellar Standard Radiation Field, or ISRF, is the mean spectrum in the interstellar medium.	#PhysicalQuantity
#IonizationDegree	Ionization Degree		#PhysicalQuantity
#KineticEnergyOfTheMode	Kinetic Energy Of The Mode		#PhysicalQuantity
#KineticMomentum	Kinetic Momentum		#PhysicalQuantity
#Length	Length		#PhysicalQuantity
#LevelPopulation	Level Population		#PhysicalQuantity
#Logg	Log(g)		#PhysicalQuantity
#Logm	Log(m) Logarithm Of The Mass Of The Shell at Distance R		#PhysicalQuantity
#Luminosity	Luminosity		#PhysicalQuantity	#StarLuminosity
#MagneticHelicity	Magnetic Helicity		#PhysicalQuantity
#MagneticIntensity	Magnetic Intensity		#PhysicalQuantity
#MagneticPressure	Magnetic Pressure		#Pressure
#Mass	Mass		#PhysicalQuantity
#MassDensity	Mass Density		#PhysicalQuantity
#MassSpectrum	Mass Spectrum		#PhysicalQuantity
#MatterDensity	Matter Density omega_m	Ratio of matter density to critical density	#Density
#MeanIntensity	Mean Intensity		#PhysicalQuantity
#Metallicity	Metallicity		#PhysicalQuantity
#MicroturbulenceVelocity	Microturbulence Velocity		#Velocity
#MixingLengthParameter	Mixing Length Parameter		#PhysicalQuantity
#Mode	Mode		#PhysicalQuantity
#ModeDegree	Mode Degree		#PhysicalQuantity
#ModeEnergy	Mode Energy I0		#PhysicalQuantity
#MolecularFraction	Molecular Fraction		#PhysicalQuantity
#Momentum	Momentum		#PhysicalQuantity
#MuE	Mu_e	Molecular weight	#PhysicalQuantity
#NonGaussianParameter	Non-Gaussian Parameter used in cosmology fNL		#PhysicalQuantity
#NumberOfNodesInTheGZone	Number Of Nodes In The G Zone ng		#PhysicalQuantity
#NumberOfNodesInThePZone	Number Of Nodes In The P Zone		#PhysicalQuantity
#NumberOfParticles	Number Of Particles		#PhysicalQuantity
#OpticalDepth	Optical Depth		#PhysicalQuantity
#OpticalDepthInTheVisible	Optical Depth In The Visible		#PhysicalQuantity
#PartialPressure	Partial Pressure		#PhysicalQuantity
#PeriodOfTheMode	Period Of The Mode		#PhysicalQuantity
#PhotodesctructionRate	Photodesctruction Rate		#PhysicalQuantity
#PhotoelectricHeatingRate	Photoelectric Heating Rate		#HeatingRate
#PhotonFlux	Photon Flux		#PhysicalQuantity
#PhysicalQuantity	Physical Quantity	Vocabulary top concept		#FeToH #RelativeFractionOfMetal #AverageDensity #EddingtonFactor #GrainAlbedo #SynchrotronCoolingFrequency #Size #HydrogenMassFraction #MuE #Velocity #AdiabaticExponent #GrainAnisotropyFactor #RealGradient #EscapeProbability #GrainTemperature #SpecificIntensity #RecombinationRate #MagneticIntensity #IonizationDegree #HubbleConstant #TauV #EnergyDensity #NumberOfNodesInThePZone #Frequency #EquivalentWidth #Logg #PartialPressure #StableMode #Momentum #AdiabaticGradient #RosselandOpacity #AntennaTemperature #GrainMaximumSize #OpticalDepthInTheVisible #GrainSurface #StarDensity #Logm #MassDensity #EddingtonLuminosity #ElectronTemperature #ThomsonCrossSection #RadialMode #Metallicity #Charge #PositionOfMassCentroid #AbsorptionFrequency #ModeEnergy #GasPressure #RadiationIntensity #SpecificHeat #F0ToF1 #FundamentalMode #EddingtonLimit #PhotodesctructionRate #HubbleParameter #Time #InterstellarStandardRadiationField #RadialOrder #GrainRadius #GrainSizeDistributionIndex #StarRadius #Wavelength #SurfaceRotationVelocity #LevelPopulation #MixingLengthParameter #ThermalGradient #OpticalDepth #NonGaussianParameter #Length #PeriodOfTheMode #Emissivity #GrainMinimumSize #Luminosity #Energy #CellPosition #Albedo #MassSpectrum #MeanIntensity #G0 #MolecularFraction #PhotonFlux #MagneticHelicity #KineticEnergyOfTheMode #Temperature #TemperatureOfNeutrals #RV #RotationVelocity #Density #Abundance #ColumnDensity #HydrogenCentralFraction #ThermonuclearEnergy #Mode #EscapeSpeed #BreakFrequency #Distance #InertialMode #AzimuthalOrder #NumberOfParticles #Intensity #SurfaceRotationPeriod #InternalEnergy #VisualExtinction #NumberOfNodesInTheGZone #Pressure #DistanceToTheCenterOfTheStar #Age #KineticMomentum #PolytropicIndex #TemperatureOfIons #AxisRatio #FundamentalRadialMode #AngularMomentum #CoolingRate #AngularVelocity #FirstOvertone #FrequencyOfHighAmplitudeModes #VelocityDispersion #Sigma8 #ThermalEnergy #ModeDegree #HeatingRate #SlopeOfThePrimordialPowerSpectrum #AV #Mass
#PolytropicIndex	Polytropic Index Gamma		#PhysicalQuantity
#PositionOfMassCentroid	Position Of Mass Centroid		#PhysicalQuantity
#Pressure	Pressure		#PhysicalQuantity	#TurbulentPressure #ThermalPressure #MagneticPressure #RadiativePressure
#ProtonDensity	Proton Density		#Density
#RV	RV	RV is defined as RV = AV / E(B-V)	#PhysicalQuantity
#RadialMode	Radial Mode		#PhysicalQuantity
#RadialOrder	Radial Order		#PhysicalQuantity
#RadiationDensity	Radiation Density omega_r	Ratio of radiation density to critical density	#Density
#RadiationIntensity	Radiation Intensity		#PhysicalQuantity
#RadiativePressure	Radiative Pressure		#Pressure
#RealGradient	Real Gradient dlnT/dlnP		#PhysicalQuantity
#RecombinationRate	Recombination Rate		#PhysicalQuantity	#RecombinationRateOnGrains
#RecombinationRateOnGrains	Recombination Rate on Grains		#RecombinationRate
#RelativeFractionOfMetal	Relative Fraction Of Metal Z		#PhysicalQuantity
#RosselandOpacity	Rosseland Opacity Kappa		#PhysicalQuantity
#RotationVelocity	Rotation Velocity		#PhysicalQuantity
#Scheme
#Sigma8	Sigma8	Rms of the overdensity fluctuation in a sphere of 8Mpc/h at z=0 Sigma8 is the amplitude of the power spectrum of cosmic matter fluctuations	#PhysicalQuantity
#Size	Size		#PhysicalQuantity
#SlopeOfThePrimordialPowerSpectrum	Slope of the Primordial Power Spectrum ns		#PhysicalQuantity
#SpecificHeat	Specific Heat Cp		#PhysicalQuantity
#SpecificIntensity	Specific Intensity		#PhysicalQuantity
#StableMode	Stable Mode		#PhysicalQuantity
#StarDensity	Star Density		#PhysicalQuantity
#StarLuminosity	Star Luminosity		#Luminosity
#StarRadius	Star Radius		#PhysicalQuantity
#SurfaceAngularVelocity	Surface Angular Velocity Wrot		#AngularVelocity
#SurfaceRotationPeriod	Surface Rotation Period Trot		#PhysicalQuantity
#SurfaceRotationVelocity	Surface Rotation Velocity Vrot		#PhysicalQuantity
#SynchrotronCoolingFrequency	Synchrotron Cooling Frequency		#PhysicalQuantity
#TauV	tauV	Optical depth in the visible	#PhysicalQuantity
#Temperature	Temperature		#PhysicalQuantity	#EffectiveTemperature #GasTemperature #ExcitationTemperature
#TemperatureOfIons	Temperature Of Ions		#PhysicalQuantity
#TemperatureOfNeutrals	Temperature Of Neutrals		#PhysicalQuantity
#ThermalEnergy	Thermal Energy		#PhysicalQuantity
#ThermalGradient	Thermal Gradient		#PhysicalQuantity
#ThermalPressure	Thermal Pressure		#Pressure
#ThermonuclearEnergy	Thermonuclear Energy Th.Energy		#PhysicalQuantity
#ThomsonCrossSection	Thomson Cross Section		#PhysicalQuantity
#Time	Time		#PhysicalQuantity
#TurbulentPressure	Turbulent Pressure		#Pressure
#TurbulentVelocity	Turbulent Velocity		#Velocity
#Velocity	Velocity		#PhysicalQuantity	#MicroturbulenceVelocity #TurbulentVelocity
#VelocityDispersion	Velocity Dispersion		#PhysicalQuantity
#VisualExtinction	Visual Extinction		#PhysicalQuantity
#Wavelength	Wavelength		#PhysicalQuantity

Predicate

Label

Description

Broader

Narrower

#AV

AV
Visual extinction in the visible

Visual extinction in the visible (in magnitude)

#PhysicalQuantity

#AbsorptionFrequency

Absorption Frequency

#PhysicalQuantity

#Abundance

Abundance

#PhysicalQuantity

#AdiabaticExponent

Adiabatic Exponent
gamma

#PhysicalQuantity

#AdiabaticGradient

Adiabatic Gradient

#PhysicalQuantity

#Age

#PhysicalQuantity

#Albedo

Albedo

#PhysicalQuantity

#AngularMomentum

Angular Momentum

#PhysicalQuantity

#AngularVelocity

Angular Velocity
Omega

#PhysicalQuantity

#SurfaceAngularVelocity

#AntennaTemperature

Antenna Temperature

#PhysicalQuantity

#AverageDensity

Average Density

#PhysicalQuantity

#AxisRatio

Axis ratio

#PhysicalQuantity

#AzimuthalOrder

Azimuthal Order

#PhysicalQuantity

#BaryonDensity

Baryon Density

#Density

#BreakFrequency

Break Frequency

#PhysicalQuantity

#CellPosition

Cell Position

#PhysicalQuantity

#Charge

Charge

#PhysicalQuantity

#GrainCharge

#ColumnDensity

Column Density

#PhysicalQuantity

#CoolingRate

Cooling Rate

#PhysicalQuantity

#DarkEnergyDensity

Dark Energy Density
omega_DE
omega_lambda

Ratio of dark energy density to critical density

#Density

#Density

Density

#PhysicalQuantity

#RadiationDensity
#BaryonDensity
#DarkEnergyDensity
#MatterDensity
#ProtonDensity

#Distance

Distance

#PhysicalQuantity

#DistanceToTheCenterOfTheStar

Distance To The Center Of The Star
R

#PhysicalQuantity

#EddingtonFactor

Eddington Factor

#PhysicalQuantity

#EddingtonLimit

Eddington Limit

#PhysicalQuantity

#EddingtonLuminosity

Eddington Luminosity

#PhysicalQuantity

#EffectiveTemperature

Effective Temperature

#Temperature

#ElectronTemperature

Electron Temperature

#PhysicalQuantity

#Emissivity

Emissivity

#PhysicalQuantity

#Energy

Energy

#PhysicalQuantity

#EnergyDensity

Energy Density

#PhysicalQuantity

#EquivalentWidth

Equivalent Width

#PhysicalQuantity

#EscapeProbability

Escape Probability

#PhysicalQuantity

#EscapeSpeed

Escape Speed

#PhysicalQuantity

#ExcitationTemperature

Excitation Temperature

#Temperature

#F0ToF1

F0/F1

Frequency compared to the fundamental sound Frequencty

#PhysicalQuantity

#FeToH

Fe/H

#PhysicalQuantity

#FirstOvertone

First Overtone
F1

#PhysicalQuantity

#Frequency

Frequency

#PhysicalQuantity

#FrequencyRange

#FrequencyOfHighAmplitudeModes

Frequency of High Amplitude Modes

#PhysicalQuantity

#FrequencyRange

Frequency Range
Freq range

#Frequency

#FundamentalMode

Fundamental Mode

#PhysicalQuantity

#FundamentalRadialMode

Fundamental Radial Mode
F0

#PhysicalQuantity

#G0

Scaling factor to the Habing interstellar radiation field

#PhysicalQuantity

#GasPressure

Gas Pressure

#PhysicalQuantity

#GasTemperature

Gas Temperature

#Temperature

#GrainAlbedo

Grains Albedo

#PhysicalQuantity

#GrainAnisotropyFactor

Grains Anisotropy Factor

#PhysicalQuantity

#GrainCharge

Grain Charge

#Charge

#GrainMaximumSize

Grains Maximum Size

Maximum size of a grain size distribution

#PhysicalQuantity

#GrainMinimumSize

Grains Minimum Size

Minimum size of a grain size distribution.

#PhysicalQuantity

#GrainRadius

Grain Radius

#PhysicalQuantity

#GrainSizeDistributionIndex

Grains Size Distribution Index

Index of a power-law describing a grains size distribution. For example, -3.5 is the typical value given by Mathis, Rumpl, Nordsiek (1977, ApJ, 217, 425).