make_base_catalog_galactic¶
-
gammapy.astro.population.
make_base_catalog_galactic
(n_sources, rad_dis='YK04', vel_dis='H05', max_age=<Quantity 1000000.0 yr>, spiralarms=True, n_ISM=<Quantity 1.0 1 / cm3>, 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 modelling after Faucher&Kaspi is included.
max_age and n_sources effectively correspond to s SN rate: SN_rate = n_sources / max_age
Parameters: n_sources : int
Number of sources to simulate.
rad_dis : callable
Radial surface density distribution of sources.
vel_dis : callable
Proper motion velocity distribution of sources.
max_age :
Quantity
Maximal age of the source
spiralarms : bool
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.