starforming.py 文件源码

def gen_single_ps(self):
        """
        Generate single point source, and return its data as a list.
        """
        # Redshift and luminosity
        self.z, self.lumo = self.get_lumo_redshift()
        # angular diameter distance
        self.param = PixelParams(self.z)
        self.dA = self.param.dA
        # Radius
        self.radius = self.param.get_angle(self.get_radius())  # [rad]
        # W/Hz/Sr to Jy
        dA = self.dA * 3.0856775814671917E+22  # Mpc to meter
        self.lumo = self.lumo / dA**2 / (10.0**-24)  # [Jy]
        # Position
        x = np.random.uniform(0, 1)
        self.lat = (np.arccos(2 * x - 1) / np.pi * 180 - 90)  # [deg]
        self.lon = np.random.uniform(0, np.pi * 2) / np.pi * 180  # [deg]
        # Area
        self.area = np.pi * self.radius**2  # [sr] ?

        ps_list = [self.z, self.dA, self.lumo, self.lat, self.lon,
                   self.area, self.radius]

        return ps_list