SpectralGrid

class beast.physicsmodel.grid.SpectralGrid(*args, **kwargs)

Bases: ModelGrid

Generate a grid that contains spectra. It provides an access to integrated photometry function getSEDs.

seds

2D float array (# models, # bands) giving the seds

Type:

ndarray

lamb

1D float array of the wavelengths of the sed bands

Type:

ndarray

grid

table with columns providing the model parameters and other characteristics of the grid

Type:

Table

header

header information

Type:

dict

Parameters:

• lamb (ndarray or str or GridBackend subclass) –

  • if ndarray: wavelength of the SEDs (requires seds and grid arguments)

  • if str: filename to the grid

  • if backend: ref to the given grid

• seds (ndarray) – 2D float array of the seds

• grid (Table) – table of properties associated to each sed

• header (dict) – if provided, update the grid table header

• aliases (dict) – if provided, update the grid table aliases

• backend (str or GridBackend subclass, optional) – if str corresponding backend class ‘memory’ = MemoryBackend, ‘cache’ = CacheBackend, ‘disk’ = DiskBackend

Methods Summary

applyExtinctionLaw(extLaw[, inplace])	Apply an extinction law to the model grid
getSEDs(filter_names[, absFlux, extLaw, ...])	Extract integrated fluxes through filters

Methods Documentation

applyExtinctionLaw(extLaw, inplace=False, **kwargs)

Apply an extinction law to the model grid

Parameters:

• extLaw (extinction.ExtinctionLaw) – apply extinction law if provided

• inplace (bool) – if set, do not copy the grid and apply on it

• **kwargs – extra keywords will be forwarded to extLaw

Returns:

g – if not inplace, returns a new SEDGrid instance. Otherwise returns None

Return type:

SEDGrid instance or None

getSEDs(filter_names, absFlux=True, extLaw=None, inplace=False, filterLib=None, **kwargs)

Extract integrated fluxes through filters

Parameters:

• filter_names (list) – list of filter names according to the filter lib or filter instances (no mixing between name and instances)

• absFlux (bool, optional) – returns absolute fluxes if set [capability should be removed]

• extLaw (**kwargs extra keywords will be forworded to) – apply extinction law if provided

• inplace (bool, optional) – if set, do not copy the grid and apply extinction on it

• filterLib (str, optional) – full filename to the filter library hd5 file

• extLaw

Returns:

memgrid – grid info with memory backend

Return type:

SEDGrid instance