airtovac {astrolibR} | R Documentation |
Convert air wavelengths to vacuum wavelengths
airtovac(wave_air)
wave_air |
wavelength in Angstroms, scalar or vector |
Wavelengths are corrected for the index of refraction of air under standard conditions. Wavelength values below 2000 A will not be altered. Take care within 1 A of 2000 A. Uses relation of Ciddor (1996).
wave_vac |
Vacuum wavelength in Angstroms, same number of elements as wave_air |
Written W. Landsman November 1991
R adaptation by Arnab Chakraborty June 2013
Ciddor 1996, Applied Optics 62, 958 http://adsabs.harvard.edu/abs/1996ApOpt..35.1566C
airtovac(4861.363) # H beta line wavelength in air