ISPy.spec package
Submodules
ISPy.spec.atlas module
- class ISPy.spec.atlas.atlas
Bases:
objectClass to load (FTS) spectral atlas
- Parameters:
None
- Variables:
cont (array_like) – full atlas continuum intensities in units sunit
spec (array_like) – full atlas spectrum in units sunit
wave (array_like) – wavelengths in units wunit
usys (str) – unit system, one of si_inu, si_ilambda, cgs_inu or cgs_ilambda
sunit (astropy CompositeUnit object) – intensity units according to the usys setting
wunit (astropy Unit object) – wavelength unit
Example
>>> from ISPy.spec import atlas as S >>> fts = S.atlas() >>> wav, sp, cont = fts.get(6562.,6564., cgs=True, perHz=False)
- Author:
Jaime de la Cruz Rodriguez (ISP/SU 2019)
- get(w0, w1, cgs=False, nograv=False, perHz=True)
Extract a subset of the atlas profile
- Parameters:
w0, w1 (float) – lower and upper boundary of the wavelength range for which to extract the atlas profile
cgs (bool, optional) – return the intensities in cgs units (defaults False, i.e. use SI)
nograv (bool, optional) – account for gravitationl reddening (defaults False)
perHz (bool, optional) – return intensity in units per Hz (defaults True)
Example
See class docstring
- Authors:
Jaime de la Cruz Rodriguez (ISP/SU 2019), Gregal Vissers (ISP/SU 2020)
- to(usys_to, perHz=True)
Convert atlas intensity data to particular units
- Parameters:
usys_to (str) – descriptor setting the unit system to convert to, either si or cgs (case insensitive)
perHz (bool, optional) – convert to intensity units per Hz (defaults True)
Example
>>> from ISPy.spec import atlas as S >>> fts = S.atlas() # intensity units are J/s/m^2/sr/Hz (SI, per Hz) by default >>> fts.to('cgs', perHz=False) # convert to erg/s/cm^2/sr/A
- Author:
Gregal Vissers (ISP/SU 2020)