astrolibR (version 0.1)

vactoair: Convert vacuum wavelengths to air wavelengths

Description

Convert vacuum wavelengths to air wavelengths

Usage

vactoair(wave_vac)

Arguments

wave_vac

vacuum wavelength, in Angstroms, scalar or vector

Value

wave_air

air wavelength, in Angstroms, scalar -r vector

Details

Corrects for the index of refraction of air under standard conditions. Wavelength values below 2000 A will not be altered. Method from Ciddor (1996). Accurate to about 10 m/s.

References

Ciddor, P. E. 1996, Refractive index of air: New equations for the visible and near infrared, Applied Optics, 35, 1566. http://adsabs.harvard.edu/abs/1996ApOpt..35.1566C

See Also

airtovac

Examples

vactoair(2000.000)   # yields air wavelength 1999.353 Angstroms