ACID_code.calc_deltav

ACID_code.calc_deltav(wavelengths: ACID_code.Array1D) → ACID_code.Scalar

Calculates velocity pixel size

Calculates the velocity pixel size for the LSD velocity grid based off the spectral wavelengths.

Parameters:

wavelengths (Array1D) – Wavelengths for Acid input spectrum (in Angstroms), must be a 1D array of positive values.

Returns:

Velocity pixel size in km/s

Return type:

float