convert_gaia_magnitude

simsit.photometry.convert_gaia_magnitude(gaia_g, gaia_bp, gaia_rp, target_filter='2MASS_Ks')

Convert Gaia magnitudes to an approximate target-system magnitude.

Parameters

gaia_gfloat or array-like

Magnitude in the Gaia G passband.

gaia_bpfloat or array-like

Magnitude in the Gaia BP passband.

gaia_rpfloat or array-like

Magnitude in the Gaia RP passband.

target_filterstr, optional

Target filter name. Supported values are:

"2MASS_Ks"
"2MASS_H"
"2MASS_J"
"SDSS12_i"

Returns

float or ndarray: Approximate magnitude in the requested target filter.

Notes

These are empirical polynomial transforms based on Gaia documentation. They should be treated as approximate and used only within the validity range of the published relations.