AtmosphericExtinction

struct RecipeData

Fields

• table: function giving the table interpolation
• lims: minimum and maximum wavelengths covered by the inout data.

ExtinctSpectrum(recipe,iwave,ispec,ierrspec,airmass)

Arguments

• recipe is one of the extinction tables available in the package (i.e., those reported by GetKnownRecipes()).
• iwave is the vector of input wavelengths. They can have units (or assumed to be Angstrom).
• ispec is the vector of the input spectrum, in linear units.
• ierrspec is the vector of the uncertainties associated to the input spectrum. It cna well be a vector of zeros.
• airmass is the airmass associated to the observation.

Returns the input spectrum (in linear units) after atmospheric extinction.

ExtinctionLimits(recipe)

Arguments

• recipe is one of the extcintion tables available in the package (i.e., those reported by GetKnownRecipes()).

Returns the extinction values wavelength limits in Angstrom.

Examples

ExtinctionLimits("Paranal.dat")

ExtinctionValues(recipe,waverange)

Arguments

• recipe is one of the extinction tables available in the package (i.e., those reported by GetKnownRecipes()).
• waverange is a vector of the wavelengths of interest (in Angstrom).

Returns the extinction values for a given wavelength range in Angstrom.

Examples

ExtinctionValues("Paranal.dat",3500:3600)

GetKnownRecipes()

Returns the atmospheric extinction currently supported by the package.

Examples

GetKnownRecipes()

Mag2Lin(excnt)

Arguments

• extcnt is a vector with extinction values in magnitudes (per airmass, usually).

Returns the extinction values in linear units

Examples

Mag2Lin([0.5,0.4,0.3])
3-element Vector{Float64}:
 0.6309573444801932
 0.6918309709189364
 0.7585775750291838

ReadData(fname)

Arguments

• fname is the file nama of a given extinction table.

Returns data for an atmospheric extinction currently supported by the package.

Examples

ReadData("Paranal.dat")