Airglow¶

class nyx.emitter.airglow.Airglow[source]¶

Bases: Emitter

Airglow source with van Rhijn weighting.

Parameters:

geo (Geometry) – Resolution configuration.
spectral_model (SpectralModel)
height_km (float) – Emission layer height in km.
t_ref (astropy.time.Time or None) – Epoch the light curve is measured from; None adopts the first observation time.

Notes

When t_ref is None the first observation fixes the epoch of the light curve. Pass t_ref explicitly to pin it.

Attributes Summary

Epoch the light curve is measured from.

Methods Summary

from_eso_skycalc(geo[, sfu, height_km, ...])

Airglow with an ESO SkyCalc spectrum and a trainable SFU light curve.

Attributes Documentation

Methods Documentation

classmethod from_eso_skycalc(geo, sfu=100.0, height_km=90.0, drift_order=0, t_ref=None)[source]¶

Airglow with an ESO SkyCalc spectrum and a trainable SFU light curve.

The curve is sfu(t) = params[0] + params[1] * dt + ... in hours since t_ref.

Parameters:

geo (Geometry)
sfu (float) – Initial solar flux units, i.e. params[0]; higher coefficients start at zero.
height_km (float) – Emission layer height in km.
drift_order (int) – Polynomial order of the light curve; 0 leaves a scalar SFU.
t_ref (astropy.time.Time or None) – Epoch the polynomial is measured from. None adopts the first observation time the emitter is prepared for.

Return type:

Airglow