Provided by: gnuastro_0.10-1_amd64 bug


       CosmicCalculator - estimate cosmological values


       astcosmiccal [OPTION...]


       CosmicCalculator  is  part  of  GNU  Astronomy  Utilities  0.10.  CosmicCalculator will do
       cosmological calculations. If no redshfit is specified, it will only print the main  input
       parameters. If only a redshift is given, it will print a table of all calculations. If any
       of the single row calculations are requested, only their values will  be  printed  with  a
       single space between each.

       For  more  information, please run any of the following commands. In particular the second
       contains a very  comprehensive  explanation  of  CosmicCalculator's  invocation:  expected
       input(s), output(s), and a full description of all the options.

       All options and their values:
              $ astcosmiccal -P

       Inputs/Outputs and options:
              $ info astcosmiccal

       Full section in manual/book:
              $ info CosmicCalculator

       Full Gnuastro manual/book:
              $ info gnuastro

       If  you  couldn't find your answer in the manual, you can get direct help from experienced
       Gnuastro users and developers. For more information, please run:

              $ info help-gnuastro

       CosmicCalculator options:


       -H, --H0=FLT
              Current expansion rate (Hubble constant).

       -l, --olambda=FLT
              Current cosmological cst. dens. per crit. dens.

       -m, --omatter=FLT
              Current matter density per critical density.

       -O, --obsline=STR,FLT
              Redshift from line and observed wavelength.

       -r, --oradiation=FLT
              Current radiation density per critical density.

       -z, --redshift=FLT
              Redshift of interest.

              Specific calculations

       -a, --absmagconv
              Conversion to absolute magnitude (no unit).

       -A, --angulardimdist
              Angular diameter distance (Mpc).

       -b, --lookbacktime
              Look back time to z (Ga: Giga Annum).

       -c, --criticaldensity
              Critical density at z (g/cm^3).

       -C, --criticaldensitynow
              Critical density now (g/cm^3).

       -d, --properdistance
              Proper distance to z (Mpc).

       -e, --usedredshift
              Used redshift in this run.

       -g, --age
              Age of universe at z (Ga: Giga Annum).

       -G, --agenow
              Age of universe now (Ga: Giga Annum).

       -L, --luminositydist
              Luminosity distance to z (Mpc).

       -s, --arcsectandist
              Tangential dist. covered by 1arcsec at z (kpc).

       -u, --distancemodulus
              Distance modulus at z (no units).

       -v, --volume
              Comoving volume (4pi str) to z (Mpc^3).

              Operating modes:

       -?, --help
              give this help list

              List all config files and variables read.

       --cite BibTeX citation for this program.

              Read configuration file STR immediately.

              Do not parse any more configuration files.

              Minimum bytes in array to not use ram RAM.

              Only run if the program version is STR.

       -P, --printparams
              Print parameter values to be used and abort.

              Don't print mmap'd file's name and size.

       -S, --setdirconf
              Set default values for this directory and abort.

              give a short usage message

       -U, --setusrconf
              Set default values for this user and abort.

       -V, --version
              print program version

       Mandatory or optional arguments to long options are also mandatory  or  optional  for  any
       corresponding short options.

       GNU Astronomy Utilities home page:


       Report bugs to


       Copyright  © 2015-2019, Free Software Foundation, Inc.  License GPLv3+: GNU General public
       license version 3 or later.
       This is free software: you are free to change and redistribute it.  There is NO  WARRANTY,
       to the extent permitted by law.

       Written/developed by Mohammad Akhlaghi


       The  full  documentation  for  CosmicCalculator is maintained as a Texinfo manual.  If the
       info and CosmicCalculator programs are properly installed at your site, the command

              info CosmicCalculator

       should give you access to the complete manual.