; FLUX ;--------------------------------------------------------------- ;! gives a total intensity value for image/component or to limit ;# ADVERB IMAGING ANALYSIS ;----------------------------------------------------------------------- ;; Copyright (C) 1995, 2020 ;; Associated Universities, Inc. Washington DC, USA. ;; ;; This program is free software; you can redistribute it and/or ;; modify it under the terms of the GNU General Public License as ;; published by the Free Software Foundation; either version 2 of ;; the License, or (at your option) any later version. ;; ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; ;; You should have received a copy of the GNU General Public ;; License along with this program; if not, write to the Free ;; Software Foundation, Inc., 675 Massachusetts Ave, Cambridge, ;; MA 02139, USA. ;; ;; Correspondence concerning AIPS should be addressed as follows: ;; Internet email: aipsmail@nrao.edu. ;; Postal address: AIPS Project Office ;; National Radio Astronomy Observatory ;; 520 Edgemont Road ;; Charlottesville, VA 22903-2475 USA ;----------------------------------------------------------------------- ;--------------------------------------------------------------- FLUX LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC ---------------------------------------------------------------- FLUX Type: Adverb (Real) Use: FLUX is a general adverb to express an intensity level associated with an image. For radio maps the unit of FLUX is Jy/beam. It is widely used as a lower limit for Cleaning or for components to be included in a source modelor other operation. Null value: NONE (0 means 0) Consult the task help file for exact usage. Verbs: IMCENTER......Returns pixel position of sub-image centroid. OBITIMAG......Access to OBIT task Imager without self-cal or peeling. OBITMAP.......Simplified access to OBIT task Imager. OBITPEEL......Access to OBIT task Imager with self-cal and peeling. OBITSCAL......Access to OBIT task Imager with self-cal, NOT peeling. Procedures: CXIMAGR.......Grid UV data into a complex image, Fourier transform, Clean. DOFARS........Procedure to aid in Faraday rotation synthesis using the FARS task. DOOSRO........Calibrating amplitude and phase, and imaging VLA data. IMFRING.......Large image delay fitting with IM2CC and OOFRING. IMSCAL........Large image self-cal with IM2CC and OOCAL. LINIMAGE......Build image cube from multi-IF data set. MAPPR.........Simplified access to IMAGR. OOCAL.........Determines antenna complex gain with frequency-dependent models. OOFRING.......Fringe fit data to determine calibration with spectral index options. PIPEAIPS......Calibrating amplitude and phase, and imaging VLA data. VLARUN........Calibrating amplitude and phase, and imaging VLA data. VLBABPSS......Computes spectral bandpass correction table. Tasks: AGAUS.........Fits 1-dimensional Gaussians to absorption-line spectra. ANCAL.........Places antenna-based Tsys and gain corrections in CL table. APCLN.........Deconvolves images with CLEAN algorithm. BLCAL.........Compute closure offset corrections. BLCHN.........Compute closure offset corrections on a channel-by-channel basis. BLING.........Find residual rate and delay on individual baselines. BOXES.........Adds Clean boxes to BOXFILE around sources from a list. BPASS.........Computes spectral bandpass correction table. BSCLN.........Hogbom Clean on beam-switched difference image. BSMOD.........Creates single-dish UV beam-switched data with model sources. BSTST.........Graphical display of solutions to frequency-switched data. CALIB.........Determines antenna calibration: complex gain. CAPLT.........Plots closure amplitude and model from CC file. CCFND.........Prints the contents of a Clean Components extension file. CCMOD.........Generates clean components to fit specified source model. CCNTR.........Generate a contour plot file from an image with CC or MF plotted. CLPLT.........Plots closure phase and model from CC file. CPASS.........Computes polynomial spectral bandpass correction table. CXCLN.........Complex Hogbom CLEAN. EVAUV.........Subtracts & divides a model into UV data, does statistics on results. FACES.........Makes images of catalog sources for initial calibration. FARS..........Faraday rotation synthesis based on the brightness vs wavelength. FIXAL.........Least squares fit aliasing function and remove. FRING.........Fringe fit data to determine antenna calibration, delay, rate. IBLED.........Interactive BaseLine based visibility EDitor. IM2CC.........Task to convert an image to multi-facet Clean Components. IM2UV.........Converts an image to a visibility data set. IMAGR.........Wide-field and/or wide-frequency Cleaning / imaging task. IMFIT.........Fits Gaussians to portions of an image. IMMOD.........Adds images of model objects to an image. JMFIT.........Fits Gaussians to portions of an image. KRING.........Fringe fit data to determine antenna calibration, delay, rate. MF2ST.........Task to generate an ST ext. file from Model Fit ext. file. MFPRT.........Prints MF tables in a format needed by modelling software. MOD3D.........Computes a 3D CC model from a set of facets. MODAB.........Makes simple absorption/emission spectral-line image in I/V. MODIM.........Adds images of model objects to image cubes in IQU polarization. MODSP.........Adds images of model objects to image cubes in I/V polarization. MOMFT.........Calculates images of moments of a sub-image. MOMNT.........Calculates images of moments along x-axis (vel, freq, ch). MTARS.........Compute model inputs to TARS. OOSUB.........Subtracts/divides a model from/into a uv data base. PCAL..........Determines instrumental polarization for UV data. RLCAL.........Determines instrumental right-left phase versus time (a self-cal). RMSD..........Calculate rms for each pixel using data in a box around the pixel. SAD...........Finds and fits Gaussians to portions of an image. SCIMG.........Full-featured imaging plus self-calibration loop with editing. SCMAP.........Imaging plus self-calibration loop with editing. SDCLN.........Deconvolves image by Clark and then "SDI" cleaning methods. SDLSF.........Least squares fit to channels and subtracts from SD uv data. SDMOD.........Modifies single-dish UV data with model sources. SETFC.........Makes a BOXFILE for input to IMAGR. SPIXR.........Fits spectral indexes to each row of an image incl curvature. SPMOD.........Modify UV database by adding a model with spectral lines. TARS..........Simulation of Faraday rotation synthesis (mainly task FARS). TVSAD.........Finds and fits Gaussians to portions of an image with interaction. UTESS.........Deconvolves images by maximizing emptiness. UVADC.........Fourier transforms and corrects a model and adds to uv data. UVCON.........Generate sample UV coverage given a user defined array layout. UVLIN.........Fits and removes continuum visibility spectrum, also can flag. UVLSD.........Least squares fit to channels and divides the uv data. UVLSF.........Least squares fit to channels and subtracts from uv data. UVMLN.........Edits data based on the rms of the spectrum. UVMOD.........Modify UV database by adding a model incl spectral index. UVPRM.........Measures parameters from a UV data base. UVSUB.........Subtracts/divides a model from/into a uv data base. VPLOT.........Plots uv data and model from CC file. VTESS.........Deconvolves sets of images by the Maximum Entropy Method. XBASL.........Fits and subtracts nth-order baselines from cube (x axis). XGAUS.........Fits 1-dimensional Gaussians to images: restartable. XMOM..........Fits one-dimensional moments to each row of an image. XPLOT.........Plots image rows one at a time on the graphics or TV screen. ZAMAN.........Fits 1-dimensional Zeeman model to absorption-line data. ZEMAN.........Fits 1-dimensional Zeeman model to data. ----------------------------------------------------------------