#Example-file for using GALFIT with GALFIDL tools
#see galfidl070110.pdf  heikki.salo@oulu.fi

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# IMAGE and GALFIT CONTROL PARAMETERS
A) ngc1097_v7.phot.1_nonan.fits      # Input data image (FITS file)
B) ngc1097_example.fits              # Output data image block
C) ngc1097_v7.phot.1_sigma.fits      # Sigma image name (made from data if blank or "none") 
D) psf.fits                          # Input PSF image and (optional) diffusion kernel
E) 1                                 # PSF fine sampling factor relative to data 
F) mask_ngc1097_nonan.fits           # Bad pixel mask (FITS image or ASCII coord list)
G) none                   # File with parameter constraints (ASCII file) 
H) 352   1152   340  1140 # Image region to fit (xmin xmax ymin ymax)
I) 50     50              # Size of the convolution box (x y)
J) 21.0967                # Magnitude photometric zeropoint 
K) 0.750  0.750           # Plate scale (dx dy)   [arcsec per pixel]
O) regular                # Display type (regular, curses, both)
P) 0                      # Choose: 0=optimize, 1=model, 2=imgblock, 3=subcomps

# INITIAL FITTING PARAMETERS
#
#   For component type, the allowed functions are: 
#       sersic, expdisk, edgedisk, devauc, king, nuker, psf, 
#       gaussian, moffat, ferrer, and sky. 
#  
#   Hidden parameters will only appear when they're specified:
#       Bn (n=integer, Bending Modes).
#       C0 (diskyness/boxyness), 
#       Fn (n=integer, Azimuthal Fourier Modes).
#       R0-R10 (coordinate rotation, for creating spiral structures).
#       To, Ti, T0-T10 (truncation function).
# 
# ------------------------------------------------------------------------------
#   par)    par value(s)    fit toggle(s)    # parameter description 
# ------------------------------------------------------------------------------


# Component number: 1
# STRUCTURE: BULGE
 0) sersic                 #  Component type
 1) 751.978   739.894 0 0  #  Position x, y
 3) 10.         1          #  Integrated magnitude 
 4) 8.          1          #  R_e (effective radius)   [pix]
 5) 1.5         1          #  Sersic index n (de Vaucouleurs n=4) 
 6) 0.0000      0          #     ----- 
 7) 0.0000      0          #     ----- 
 8) 0.0000      0          #     ----- 
 9) 1.0000      0          #  Axis ratio (b/a)  
10) 10.0000     0          #  Position angle (PA) [deg: Up=0, Left=90]
 Z) 0                      #  Skip this model in output image?  (yes=1, no=0)

# Component number: 2
# STRUCTURE: DISK
 0) expdisk                #  Component type
 1) 751.978   739.894 0 0  #  Position x, y
 3) 10.         1          #  Integrated magnitude 
 4) 150.        1          #  R_s (disk scale-length)   [pix]
 5) 0.0000      0          #     ----- 
 6) 0.0000      0          #     ----- 
 7) 0.0000      0          #     ----- 
 8) 0.0000      0          #     ----- 
 9) 0.6550      0          #  Axis ratio (b/a)  
10) -50.70      0          #  Position angle (PA) [deg: Up=0, Left=90]
 Z) 0                      #  Skip this model in output image?  (yes=1, no=0)

# Component number: 3
# STRUCTURE: BAR
 0) ferrer                 #  Component type
 1) 751.978   739.894 0 0  #  Position x, y 
 3) 20.         1          #  Central surface brghtness  [mag/arcsec^2]
 4) 200.        1          #  Outer truncation radius  [pix]
 5) 2.0000      0          #  Alpha (outer truncation sharpness) 
 6) 0.0000      0          #  Beta (central slope)
 7) 0.0000      0          #     ----- 
 8) 0.0000      0          #     ----- 
 9) 0.3         1          #  Axis ratio (b/a)  
10) -32.        1          #  Position angle (PA) [deg: Up=0, Left=90]
 Z) 0                      #  Skip this model in output image?  (yes=1, no=0)

# Component number: 4
# STRUCTURE: NUCLEUS
 0) gaussian               #  Component type
 1) 751.978   739.894 1 1  #  Position x, y 
 3) 14          1          #  Integrated magnitude 
 4) 2.8000      0          #     FWHM       [pix]
 5) 0.0000      0          #     ----- 
 6) 0.0000      0          #     ----- 
 7) 0.0000      0          #     ----- 
 8) 0.0000      0          #     ----- 
 9) 1.0000      0          #  Axis ratio (b/a)  
10) 25.0000     0          #  Position angle (PA) [deg: Up=0, Left=90]
 Z) 0                      #  Skip this model in output image?  (yes=1, no=0)

# Component number: 5
# STRUCTURE: NR
 0) sersic3                #  Component type
 1) 751.978   739.894 1 1  #  Position x, y
 3) 19          1          #  Surface brghtnss @ outer R_break [mag/arcsec^2]
 4) 10          1          #  R_e (effective radius)   [pix]
 5) 0.5         0          #  Sersic index n (de Vaucouleurs n=4) 
 6) 0.0000      0          #     ----- 
 7) 0.0000      0          #     ----- 
 8) 0.0000      0          #     ----- 
 9) 0.80        1          #  Axis ratio (b/a)  
10) -30.        1          #  Position angle (PA) [deg: Up=0, Left=90]
Ti)  6                     #  Inner truncation by component number(s)
 Z) 0                      #  Skip this model in output image?  (yes=1, no=0)

# Component number: 6
T0) radial                 #  Truncation type (radial, length, height)
T4) 16.         1          #  Break radius (99% normal flux)    [pixels]
T5) 9.          1          #  Softening length (1% normal flux) [pixels]

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