The constants module

A module which contains the following physical constants:

Name of variable Quantity it describes Units
solar_radius the solar radius \(\mathrm{cm}\)
solar_mass the solar mass \(\mathrm{g}\)
solar_luminosity the solar luminosity \(\mathrm{g.cm^2.s^{-3}}\)
solar_temperature the solar effective temperature \(\mathrm{K}\)
solar_dnu the solar large frequency separation \(\mathrm{\mu Hz}\)
solar_numax the solar frequency at maximum power \(\mathrm{\mu Hz}\)
solar_cutoff the solar cutoff frequency \(\mathrm{\mu Hz}\)
G the gravitational constant \(\mathrm{cm^3.g^{-1}.s^{-2}}\)
solar_x the solar hydrogen content dimensionless
solar_z the solar metallicity content dimensionless
A_FeH multiplicative constant in \(\mathrm{[M/H]=A_{FeH}[Fe/H]}\) dimensionless

Note

These values can be edited according to the latest discoveries. As good practise, it is helpful to include the relevant reference.

constants.A_FeH = 1.0

multiplicative constant which intervenes in the conversion from metal content to iron content

constants.G = 6.67428e-08

the gravitational constant in \(\mathrm{cm^3.g^{-1}.s^{-2}}\)

constants.solar_cutoff = 5300.0

the solar cut-off frequency separation in \(\mathrm{\mu Hz}\)

constants.solar_dnu = 135.1

the solar large frequency separation in \(\mathrm{\mu Hz}\)

constants.solar_luminosity = 3.844e+33

the solar luminosity in \(\mathrm{g.cm^2.s^{-3}}\)

constants.solar_mass = 1.98919e+33

the solar mass in \(\mathrm{g}\)

constants.solar_numax = 3090.0

the solar frequency at maximum power in \(\mathrm{\mu Hz}\)

constants.solar_radius = 69599000000.0

the solar radius in \(\mathrm{cm}\)

constants.solar_temperature = 5777.0

the solar temperature in \(\mathrm{K}\)

constants.solar_x = 0.7336

the solar hydrogen content

constants.solar_z = 0.0179

the solar metallicity content