def aperture_select(self, ra, dec, kwargs_aperture):
        """
        returns a bool list if the coordinate is within the aperture (list)
        :param ra:
        :param dec:
        :return:
        """
        if self._aperture_type == 'shell':
            bool_list = self.shell_select(ra, dec, **kwargs_aperture)
        elif self._aperture_type == 'slit':
            bool_list = self.slit_select(ra, dec, **kwargs_aperture)
        else:
            raise ValueError("aperture type %s not implemented!" % self._aperture_type)
        return bool_list