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DOC: Phoenix is stellar models
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pllim committed Feb 26, 2018
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,8 @@ Stellar models:
|:ref:`pysynphot-appendixa-ck04` |$PYSYN_CDBS/grid/ck04models |Yes |
+-------------------------------------+-------------------------------+ |
|:ref:`pysynphot-appendixa-kurucz1993`|$PYSYN_CDBS/grid/k93models | |
+-------------------------------------+-------------------------------+ |
|:ref:`pysynphot-appendixa-phoenix` |$PYSYN_CDBS/grid/phoenix | |
+-------------------------------------+-------------------------------+--------------+
|:ref:`pysynphot-appendixa-calspec` |$PYSYN_CDBS/calspec |No |
+-------------------------------------+-------------------------------+ |
Expand All @@ -45,8 +47,6 @@ Non-stellar models:
+-------------------------------------+-------------------------------+--------------+
|Atlas/Catalog |Installation Path |Interpolatable|
+=====================================+===============================+==============+
|:ref:`pysynphot-appendixa-phoenix` |$PYSYN_CDBS/grid/phoenix |Yes |
+-------------------------------------+-------------------------------+--------------+
|:ref:`pysynphot-appendixa-bc95` |$PYSYN_CDBS/grid/bc95/templates|No |
+-------------------------------------+-------------------------------+ |
|:ref:`pysynphot-appendixa-kc96` |$PYSYN_CDBS/grid/kc96 | |
Expand Down Expand Up @@ -173,6 +173,36 @@ The easier way to to use `~pysynphot.catalog.Icat` (also see
>>> sp = S.Icat('k93models', 10000, 0.1, 3.0)


.. _pysynphot-appendixa-phoenix:

Phoenix Models
==============

The ``$PYSYN_CDBS/grid/phoenix`` directory contains models provided by
`F. Allard et al. <http://perso.ens-lyon.fr/france.allard/>`_
and can be found in the
`Star, Brown Dwarf, and Planet Simulator <http://phoenix.ens-lyon.fr/simulator/index.faces>`_. They use static, spherical symmetric, 1D simulations to completely
describe the atmospheric emission spectrum. The models account for the
formation of molecular bands, such as those of water vapor, methane, or
titanium dioxide, solving for the transfer equation over more than 20,000
wavelength points on average, producing synthetic spectra with 2 Angstroms
resolution. The line selection is repeated at each iteration of the model
until it has converged and the thermal structure obtained. The models here
are calculated with a cloud model, valid across the entire parameter range.
See
`Phoenix models README file <http://www.stsci.edu/hst/observatory/crds/SIfileInfo/pysynphottables/index_phoenix_models_html>`_
for more details.
The atlas data files are organized in a similar naming convention as
:ref:`pysynphot-appendixa-kurucz1993`, and are easily accessible using
`~pysynphot.catalog.Icat` (also see :ref:`pysynphot-spec-atlas`).

The example below generates a spectrum with metallicity :math:`\log Z = +0.1`,
temperature :math:`T_{\textnormal{eff}} = 10000 \textnormal{K}`, and gravity
:math:`\log g = 3.0`:

>>> sp = S.Icat('phoenix', 10000, 0.1, 3.0)


.. _pysynphot-appendixa-calspec:

HST Calibration Spectra
Expand Down Expand Up @@ -398,36 +428,6 @@ The example below loads a source spectrum of spectral type G0V from the atlas:
>>> sp = S.FileSpectrum(filename)


.. _pysynphot-appendixa-phoenix:

Phoenix Models
==============

The ``$PYSYN_CDBS/grid/phoenix`` directory contains models provided by
`F. Allard et al. <http://perso.ens-lyon.fr/france.allard/>`_
and can be found in the
`Star, Brown Dwarf, and Planet Simulator <http://phoenix.ens-lyon.fr/simulator/index.faces>`_. They use static, spherical symmetric, 1D simulations to completely
describe the atmospheric emission spectrum. The models account for the
formation of molecular bands, such as those of water vapor, methane, or
titanium dioxide, solving for the transfer equation over more than 20,000
wavelength points on average, producing synthetic spectra with 2 Angstroms
resolution. The line selection is repeated at each iteration of the model
until it has converged and the thermal structure obtained. The models here
are calculated with a cloud model, valid across the entire parameter range.
See
`Phoenix models README file <http://www.stsci.edu/hst/observatory/crds/SIfileInfo/pysynphottables/index_phoenix_models_html>`_
for more details.
The atlas data files are organized in a similar naming convention as
:ref:`pysynphot-appendixa-kurucz1993`, and are easily accessible using
`~pysynphot.catalog.Icat` (also see :ref:`pysynphot-spec-atlas`).

The example below generates a spectrum with metallicity :math:`\log Z = +0.1`,
temperature :math:`T_{\textnormal{eff}} = 10000 \textnormal{K}`, and gravity
:math:`\log g = 3.0`:

>>> sp = S.Icat('phoenix', 10000, 0.1, 3.0)


.. _pysynphot-appendixa-bc95:

Bruzual-Charlot Atlas
Expand Down

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