Cloudy 90
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Cloudy 90.05
Documentation and Files

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The last Fortran version of the code was C90.05.  C90 is now in maintenance mode, and will only be updated for major changes in the atomic data or newly discovered bugs. 

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Hot fixes to C90.05 are saved here.  The C90 revision history is located here.

File formats

bulletFiles are grouped together by a common theme - all volumes of the documentation are packaged together, all the stellar atmosphere files are together, the source files, and the test cases.
bulletThe files are in tar'd and gziped format.  Uncompress the individual files (example: gunzip filename.tar) then untar the file with the command tar -xvf filename.tar. PC users: WinZip will do both steps with a double mouse click.
bulletThe documentation is available as either PDF or postscript
bulletThe PDF files require version 3 or later.  You can get a free viewer from Adobe.  
bulletThe postscript files were created with MS Word using the current Adobe postscript driver.  Most were gzip'd.  They are viewable with my version of gsviewUnix users:  if you cannot view the postscript files it is almost certainly because you need to update your viewer.  The gv viewer always seems to work.  The files almost always print ok even when you can't view them.

Hazy, the Documentation for Cloudy

bulletHazy comes in four volumes. Vol. 1 gives a discussion of the commands, Vol. 2 of the numerical procedures, Vol. 3 of the machine environment, and Vol. 4 describes the output and how it relates to observations.   Last changed 1997 Oct 26. Hazy is available in the following formats:
bulletPDF:  The four volumes can be obtained as a set of Adobe Acrobat files packed into a single tar file. It may be necessary to obtain a PDF Reader,  free from Adobe. This file is tar'd but not compressed.
bulletPostscript:  A second gziped tar file contains a complete set of postscript files. Please read the included readme.ps file if this format is chosen, since a high-end postscript printer is needed. 
bulletThis link provides a list of changes in the commands that have occurred since the last edition of Hazy was produced.  These are not included in the documents linked above.   There are a few new commands and a description of how to use the two sets of Rauch atmospheres. Last changed 1999 July 9.

Cloudy, the source and executable

bulletThe current version is C90.05.  Last changed 1999 July 9.
bulletThe Fortran 77 source   is part of a gziped tar file. It will explode into many files.  The readme.htm file contains hints on how to have a drama-free compilation and can be viewed with any web browser. This should be consulted for what to do with the source.  The input script for the Meudon Planetary Nebula model (one of the standard nebular tests) is included, along with the resulting output, a copy of my run Unix script, and my c84.ini file.
bulletHot Fixes  A set of corrections to the source, which will be incorporated in the next incremental upgrade, are listed in the Hot Fixes page. It is very important that you edit the source to incorporate these Hot Fixes since they correct known problems. The source you obtain here does not have any of these these fixes included. (Reason: this is the source that created the output files listed below.  You can validate your system/compiler by confirming that this source reproduces that output.)
bulletExecutable versions of the code. I can put compressed executable versions of the code on the web site if requested. Executable versions are available for the following platforms: WinTel NT (Version C90.05 using Dec Visual Fortran 6.0  under Win NT 4.0) and GNU/Linux Intel.   Last changed 1999 July 9.
bulletThe changes page gives a complete list to revisions to the code.
bulletNotes on the use of Numerical Recipes software within Cloudy

The test cases

bulletReliability in the face of complexity is the real challenge of software development.
bulletTest cases input This file contains the suite of test cases I use to verify the behavior of the code in well-documented cases. These are also included in the test cases output file below. They are discussed in Vol. 3 of Hazy. This file should be untar'd in its own directory since it will explode into a large number of *.in and *.for files. Last changed 1997 Nov 18.
bulletTest cases output These files contain the results of the suite of test cases I use to verify the behavior of the code in well-documented cases. These tar files contain the input script and all resulting output. Results are available for two platforms, PC (NT, Dec Visual Fortran), and Sparc (thanks to Kirk Korista for running this). Note that the code that generated this output did not have the Hot Fixes included.  Last changed 1999 July 9.

Stellar atmospheres in Cloudy

bulletKevin Volk incorporated three large grids of stellar atmosphere emergent continua into Cloudy. These can be used as part of the incident continuum with the table stars Werner, table star Rauch, or table stars atlas commands, as described in Part 1 of Hazy.  It is necessary to download several sets of files if these stellar atmospheres are to be used.  Source files for the Werner and Kurucz atmospheres are available here, and for the Rauch atmospheres from here (you want the complete set, linked at the bottom of the page).  Both sets must be downloaded into the same temporary directory.  Directions for what to do next are contained here Last changed 1999 Jul 9.
bulletSetting up the stellar atmospheres in C94.

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