synthesizer.photometry¶

A module for working with photometry derived from an Sed.

This module contains a single class definition which acts as a container for photometry data. It should never be directly instantiated, instead internal methods that calculate photometry (e.g. Sed.get_photo_lnu) return an instance of this class.

Classes

class synthesizer.photometry.PhotometryCollection(filters, **kwargs)[source]¶

A container for photometry data.

This represents a collection of photometry values and provides unit association and plotting functionality.

This is a utility class returned by functions elsewhere. Although not an issue if it is this should never really be directly instantiated.

photometry¶

Quantity instance representing photometry data.

Type:: Quantity

photo_lnu¶

Quantity instance representing photometry data in the rest frame.

Type:: Quantity

photo_fnu¶

Quantity instance representing photometry data in the observer frame.

Type:: Quantity

filters¶

The FilterCollection used to produce the photometry.

Type:: FilterCollection

filter_codes¶

List of filter codes.

Type:: list

_look_up¶

A dictionary for easy access to photometry values using filter codes.

Type:: dict

items()[source]¶

Enable dict.items() behaviour.

Returns:

dict_items: A dict_items object containing the filter codes and photometry.

keys()[source]¶

Enable dict.keys() behaviour.

Returns:

list: A list of filter codes.

plot_photometry(fig=None, ax=None, show=False, ylimits=(), xlimits=(), marker='+', figsize=(3.5, 5))[source]¶

Plot the photometry alongside the filter curves.

Parameters:

fig (matplotlib.figure.Figure, optional) – A pre-existing Matplotlib figure. If None, a new figure will be created.
ax (matplotlib.axes._axes.Axes, optional) – A pre-existing Matplotlib axes. If None, new axes will be created.
show (bool, optional) – If True, the plot will be displayed.
ylimits (tuple, optional) – Tuple specifying the y-axis limits for the plot.
xlimits (tuple, optional) – Tuple specifying the x-axis limits for the plot.
marker (str, optional) – Marker style for the photometry data points.
figsize (tuple, optional) – Tuple specifying the size of the figure.

Returns: