Summary of Parameters

IMage

(char) Name of image for input, This is the data and should be a FIGARO format data file. This should also have a .X axis array which contains the wavelengths of the lines. For the identification files supplied with the program the units should be Ångstroms. However, if the user supplies his/her own files, this need not apply, although some plots may have the wrong labels.

ARC_OPTS

(char) Fit option:

NEW (N)

Set up a new analysis

REPEAT (R)

Iterate on previous analysis

CLONE (C)

CLONE an analysis from another file

YStart

(int) Analysis lower limit

YEnd

(int) Analysis upper limit

YBlock

(int) Analysis cross-section width

ITeration

(int) New value of iteration

MAXLines

(int) Maximum number of lines to allow room for

CLfile

(char) Name of image for CLONING from

VCorr

(real) Correction to apply to radial velocities

TOls

(char) For use in batch only

INherit

(int) Number to control inheritance of previous fits:

0

no inheritance of fits

1

inheritance from next block

-1

inheritance from previous block

DEvice

(char) Device to use for plotting (greyscale)

FITRat

(real) Ratio of widths, heights, or separation, for double fits

CAlrat

(int) Ratio of number of iteration to default

WHite

(float) Level to plot as white (greyscale option)

BLack

(float) Level to plot as black (greyscale option)

MAXGauss

(int) Maximum number of Gaussians that can be fitted to a profile.

TStart

(int) Analysis lower limit

TEnd

(int) Analysis upper limit

TBlock

(int) Analysis width in T direction

FIT_MODEL

(char) Model for fitting

PLOTLim

(float) Limits of plot (world coordinates). This is to allow velocity plots to be forced to all have the same scale, making comparison easier.

HArdcopy

(key) Produce hardcopy plots of fits from cube

TAble

(key) Produce table of fits from cube

PLOT

(key) Produce plots of rotation curves

PRInt

(key) Produce print out of rotation curves

KEEP_ITT

(key) Keep iteration files. These files contain details of the fitting process. If a fit succeeds the file is always deleted, if it crashed it is always kept, this keyword controls whether it is deleted if a NAG error occurs.

FIT

(key) Perform fitting

COPY

(key) Copy previous fits This will repeat all the fits previously made, which is likely to be of use if data is co-added after one file has been analysed. Also, when used with CLONE the entire .RES structure is copied without any change. For the new fits the previous fits (suitably scaled) are used as first guesses.

ABsorption

(key) Allow fitting of absorption lines. This allows absorption fits to be defined--once defined they can be fitted whatever the value of this.

BOunds

(key) Perform bounded fits to lines (in batch). This only bounds the widths.

LAbel

(key) Put labels on plots. This is true by default, but it may be preferable if plots are to be used in a paper to not have labels.

CONtour

(key) Produce contour plots

GRey

(key) Produce greyscale plots

LOG

(key) Use log scale for greyscale and contour plots

WEIghts

(key) Use weighted fitting (default is true).

PRFits

(key) Print out details of fitting. This is true by default, but if you wish to avoid large log files set it to false.

FULL

(key) Print out full details of fits in table. This provides the information in a form which is easier to read into a FORTRAN program, and includes the information given in PRINT and TABLE.

CHECK

(key) This produces an array of line profiles with the fits superimposed.

The options HARDCOPY, TABLE, PLOT, PRINT, SHAPE and FULL are the same as for the OUTPUT MENU, except that in batch mode HARDCOPY will work on all line profiles/blockings which have a successful fit. CONTOUR and GREYSCALE work on all the lines in batch mode.

Note that the use of TSTART and TEND is with 3-dimensional data files. At present LONGSLIT only partially supports these, but some of the same code is used as in FIBDISP.

The keyword PRFITS is true by default but the user may set it to false to avoid large log files when running in batch.