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Single_gaussian_test.param
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Single_gaussian_test.param
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### Important three parameters
delta_AIC_limit : 10.0 ### The difference in the corrected AIC needed for a fit to be considered preferred
smoothing_length : 3.0 ### The smoothing length used to smooth the spectrum before the determination of the number of peaks
signal_to_noise_ratio : 5 ### Signal to noise ratio to determine if a component is significant enough to fit
### Input/Output names
data_in_file_name : ./input.fits ### The name of the fits file one wishes to fit
output_base : output ### The name base for the moment maps, i.e. output_mom0.fits, output_mom1.fits
### Spectral fitting parameters
max_peaks : 4 ### Maximum number of Gaussian components allowed to be considered in the fitting
max_iterations : 5 ### Maximum number of iterations allowed in the fitting process
min_velocity_channels : 1 ### Minimum number of velocity channels with emission needed for a spectrum to be fitted
min_width_value : 0.08 ### Minimum value that the width of any component may have (ensure the value is in the same unit as the header)
max_width_value : 1.0 ### Maximum value that the width of any component may have (ensure the value is in the same unit as the header)
mask_pad : 3 ### Number of mask channels padding on either side of emission
### Noise level parameters. Not needed for test runs
variable_noise : 0 ### A flag which determines if the noise level is constant for all spectra fitted, or if it is estimated from the spectrum
noise_level : 0.1 ### If variable_noise = 0 then we use a constant noise level for all spectra and this is set by noise_level
### Moment-masking parameters
velocity_channel_number : 70 ### The number of velocity channels on either the left-hand side (number>0) or the right-hand side (number<0) of the spectrum used to calculate the noise during masking
upper_sigma_level : 8 ### The upper signal to noise value used for the moments masking technique
lower_sigma_level : 4 ### The lower signal to noise value used for the moments masking technique
mask_filter_size : 3 ### The size of the box-car filter used to make the moment mask
use_velocity_range : 0 ### A flag which determines if moments are only calculated over a certain velocity range
min_velocity_range : 200 ### The minimum velocity for the velocity range moments are calculated over, if used
max_velocity_range : 300 ### The maximum velocity for the velocity range moments are calculated over, if used
### Flags
debug : 0 ### A flag to turn on the debug mode, this produces a lot of screen output and so should be turned off for normal runs
### Parameters used when one uses one of the test functions. Not used in normal runs.
test_spec_min : -3.0 ### Minimum velocity of the spectra
test_spec_max : 3.0 ### Maximum velocity of the spectra
test_spec_num : 75 ### Number of velocity channels
test_noise : 0.1 ### The level of noise added to the test spectra
test_amplitude_min : 0.6 ### The minimum amplitude of the components in the test spectra
test_amplitude_max : 5.6 ### The maximum amplitude of the components in the test spectra
test_width_min : 0.25 ### The minimum width of the components in the test spectra
test_width_max : 0.5 ### The maximum width of the components in the test spectra
test_vel_cen_min : -2.5 ### The minimum velocity centroid of the components in the test spectra
test_vel_cen_max : 2.5 ### The maximum velocity centroid of the components in the test spectra
test_plot_tag : 0 ### A flag to turn on or off the plotting of the errors and reduced chi_squared in the single Gaussian test function