make_base_catalog_galactic#
- gammapy.astro.population.make_base_catalog_galactic(n_sources, rad_dis='YK04', vel_dis='H05', max_age='1e6 yr', spiralarms=True, n_ISM='1 cm-3', random_state='random-seed')[source]#
Make a catalog of Galactic sources, with basic source parameters.
Choose a radial distribution, a velocity distribution, the number of pulsars n_pulsars, the maximal age max_age[years] and the fraction of the individual morphtypes. There’s an option spiralarms. If set on True a spiralarm modeling after Faucher&Kaspi is included.
max_age and n_sources effectively correspond to s SN rate: SN_rate = n_sources / max_age
- Parameters
- n_sourcesint
Number of sources to simulate
- rad_discallable
Radial surface density distribution of sources
- vel_discallable
Proper motion velocity distribution of sources
- max_age
Quantity Maximal age of the source
- spiralarmsbool
Include a spiralarm model in the catalog?
- n_ISM
Quantity Density of the interstellar medium
- random_state{int, ‘random-seed’, ‘global-rng’,
RandomState} Defines random number generator initialisation. Passed to
get_random_state.
- Returns
- table
Table Catalog of simulated source positions and proper velocities
- table