def _remnant_command_line_arguments(parser):
    """Add remnant specific command line options to the Argument Parser

    Parameters
    ----------
    parser: object
        OptionParser instance
    """
    remnant_group = parser.add_argument_group(
        """Options specific for calculating the remnant properties
-------------------------------------------------------"""
        )
    remnant_group.add_argument('--evolve_spins', action='store_true', help=
        'Evolve the spins up to the Schwarzschild ISCO frequency for remnant fits evaluation'
        , default=False)
    remnant_group.add_argument('--NRSur_fits', nargs='?', dest='NRSur_fits',
        help=
        'The NRSurrogate you wish to use to calculate the remnant quantities from your posterior samples. If not passed, the average NR fits are used'
        , default=False)
    remnant_group.add_argument('--waveform_fits', action='store_true', help
        =
        'Use the provided approximant (either from command line or stored in the result file) to calculate the remnant quantities from your posterior samples. If not passed, the average NR fits are used'
        , default=False)
    return remnant_group
