diff options
Diffstat (limited to 'fg21sim')
| -rw-r--r-- | fg21sim/configs/20-extragalactic.conf.spec | 40 | ||||
| -rw-r--r-- | fg21sim/extragalactic/clusters/main.py | 32 |
2 files changed, 44 insertions, 28 deletions
diff --git a/fg21sim/configs/20-extragalactic.conf.spec b/fg21sim/configs/20-extragalactic.conf.spec index b8af33b..320c3c1 100644 --- a/fg21sim/configs/20-extragalactic.conf.spec +++ b/fg21sim/configs/20-extragalactic.conf.spec @@ -41,8 +41,6 @@ # Unit: [Gyr] tau_merger = float(default=3.0, min=1.0, max=5.0) - # The fraction that a cluster hosts a radio halo - halo_fraction = float(default=None, min=0.0, max=1.0) # Magnetic field scaling relation for clusters # Reference: Cassano et al. 2012, A&A, 548, A100, Eq.(1) # @@ -66,42 +64,30 @@ # Emission of giant radio halos from galaxy clusters [[halos]] - # Maximum redshift until where to tracing the cluster merging history - # (e.g., when calculating the electron spectrum) - zmax = float(default=3.0, min=0.0) - # Redshift bin size for, e.g., calculating acceleration coefficients - zbinsize = float(default=0.01, min=0.0, max=0.1) + # Fraction of the turbulence energy in the form of magneto-sonic waves, + # which will channel into relativistic electrons. + eta_turb = float(default=0.3, min=0.0, max=1.0) - # Mass threshold of the sub-cluster to be regarded as a significant - # merger. (unit: Msun) - merger_mass_th = float(default=1e13, min=1e12) - - # Radius of the giant radio halo in clusters (unit: kpc) - # XXX: currently only support a constant radius of halos - radius = float(default=500.0, min=100.0) - - # Fraction of the turbulence energy in the form of magneto-sonic waves. - eta_t = float(default=0.3, min=0.0, max=1.0) - - # Ratio of the total energy injected in cosmic-ray electrons during the - # cluster life to the present-day total thermal energy of the cluster. + # Ratio of the total energy injected into cosmic-ray electrons during + # the cluster life to its total thermal energy. eta_e = float(default=0.003, min=0.0, max=0.1) # Minimum and maximum Lorentz factor (i.e., energy) of the relativistic # electron spectrum. - pmin = float(default=1e1) - pmax = float(default=1e5) - - # Number of points for the grid used during solving the Fokker-Planck - # equation to calculate the electron spectrum. - pgrid_num = integer(default=100, min=10) + gamma_min = float(default=1e1) + gamma_max = float(default=1e5) + # Number of momentum points/cells for solving the Fokker-Planck + # equation. + gamma_np = integer(default=200, min=50) # Number of grid points used as the buffer region near the lower # boundary, and the value within this buffer region will be fixed to # avoid unphysical pile-up of low-energy electrons. + # Reference: Donnert & Brunetti 2014, MNRAS, 443, 3564, Sec.(3.3) buffer_np = integer(default=5, min=0) - # Time step for solving the Fokker-Planck equation (unit: Gyr) + # Time step for solving the Fokker-Planck equation + # Unit: [Gyr] time_step = float(default=0.01, min=1e-5, max=1.0) # Index of the power-law spectrum assumed for the injected electrons. diff --git a/fg21sim/extragalactic/clusters/main.py b/fg21sim/extragalactic/clusters/main.py index b6c1022..8e37db1 100644 --- a/fg21sim/extragalactic/clusters/main.py +++ b/fg21sim/extragalactic/clusters/main.py @@ -41,9 +41,21 @@ class GalaxyClusters: Currently, only the *giant radio halos* are considered, while other types of extended emissions are missing, e.g., mini-halos, elongated relics, roundish relics. + + Attributes + ---------- + configs : `~ConfigManager` + A `ConfigManager` instance containing default and user configurations. + For more details, see the example configuration specifications. + halo_configs : dict + A dictionary containing the configurations for halo simulation. + sky : `~SkyPatch` or `SkyHealpix` + The sky instance to deal with the simulation sky as well as the + output map. + XXX: current full-sky HEALPix map is NOT supported! """ # Component name - name = "galaxy clusters" + name = "galaxy clusters (halos)" def __init__(self, configs): self.configs = configs @@ -79,6 +91,24 @@ class GalaxyClusters: logger.info("Loaded and set up configurations") + @property + def halo_configs(self): + """ + Configurations for radio halo simulation as a dictionary. + """ + comp = "extragalactic/halos" + haloconf = { + "eta_turb": self.configs.getn(comp+"/eta_turb"), + "eta_e": self.configs.getn(comp+"/eta_e"), + "gamma_min": self.configs.getn(comp+"/gamma_min"), + "gamma_max": self.configs.getn(comp+"/gamma_max"), + "gamma_np": self.configs.getn(comp+"/gamma_num"), + "buffer_np": self.configs.getn(comp+"/buffer_np"), + "time_step": self.configs.getn(comp+"/time_step"), + "injection_index": self.configs.getn(comp+"/injection_index"), + } + return haloconf + def _load_catalog(self): """ Load the sampled (z, mass) catalogs from the Press-Schechter |