Changes between Version 54 and Version 55 of StellarAtmospheres

Show
Ignore:
Timestamp:
01/12/17 10:12:54 (7 months ago)
Author:
peter
Comment:

replace c16 -> c17

Legend:

Unmodified
Added
Removed
Modified
  • StellarAtmospheres

    v54 v55  
    9191This shows that the ''Tlusty'' O star 3-dimensional grid has three parameters, the temperature, gravity, and metallicity.  The ''Werner'' star grid has two parameters (the square brackets indicate that the second parameter is optional), and the ''WMbasic'' grid again has three parameters.  This output lists all the grids installed on your computer, excluding any grids that you defined yourself (since Cloudy doesn't know the names you gave to those files). 
    9292 
    93 Starting with Cloudy C16 the output of the '''''table star available''''' command will also list several forms of the '''''table star hm05''''' and '''''table hm12''''' commands. These grids differ in certain aspects from the standard stellar atmosphere grids (e.g., they implicitly set the intensity). But they use the same underlying code infrastructure and the data files are fully compatible with standard stellar atmosphere grids. This is why they are included in the output. 
     93Starting with Cloudy C17 the output of the '''''table star available''''' command will also list several forms of the '''''table star hm05''''' and '''''table hm12''''' commands. These grids differ in certain aspects from the standard stellar atmosphere grids (e.g., they implicitly set the intensity). But they use the same underlying code infrastructure and the data files are fully compatible with standard stellar atmosphere grids. This is why they are included in the output. 
    9494 
    9595The command '''''table star <grid> list''''' will list the models contained in that grid. The parameter '''''<grid>''''' should use the same syntax as given in the output from the '''''table star available''''' command (without the parameters). An example would be '''''table star tlusty Ostar Z+0.3 list''''', which produces (assuming the grid is installed on your computer): 
     
    126126== Using ascii files directly == 
    127127 
    128 We are in the process of removing the need for compiled binary files and allow the code work directly on the ascii files. This work is still in progress, but some of the new functionality is already available. Starting with Cloudy version C16 you can use the command '''''table star "<yourname.ascii>" <par1> <par2> ...''''' to interpolate directly on the data in the ascii file and skip the compilation stage. This works well for small grids (roughly 1 to 10 MB in size, depending on the speed of the computer). For large grids we will likely introduce a new (and optional) form of compilation that is independent of the frequency mesh in Cloudy to help speed up the reading process. 
    129  
    130 Starting with Cloudy C16 we also support the command '''''table star "<yourname.ascii>" list''''' to list the contents of an ascii file. All other '''''table star''''' commands still require the use of compiled binary files. 
     128We are in the process of removing the need for compiled binary files and allow the code work directly on the ascii files. This work is still in progress, but some of the new functionality is already available. Starting with Cloudy version C17 you can use the command '''''table star "<yourname.ascii>" <par1> <par2> ...''''' to interpolate directly on the data in the ascii file and skip the compilation stage. This works well for small grids (roughly 1 to 10 MB in size, depending on the speed of the computer). For large grids we will likely introduce a new (and optional) form of compilation that is independent of the frequency mesh in Cloudy to help speed up the reading process. 
     129 
     130Starting with Cloudy C17 we also support the command '''''table star "<yourname.ascii>" list''''' to list the contents of an ascii file. All other '''''table star''''' commands still require the use of compiled binary files. 
    131131 
    132132------- 
     
    252252== The Haardt & Madau grids == 
    253253 
    254 These grids give the cosmic ultraviolet background radiation as a function of redshift. The necessary data files are included in the Cloudy distribution by default, so no separate download is necessary. They were calculated with the [http://www.ucolick.org/~pmadau/CUBA/HOME.html CUBA code]. Three versions are available: from 1996, 2005 and 2012. The first data set gives the background for a single redshift, while the latter two give a grid of SEDs as a function of redshift. Since Cloudy version C16, the 2005 and 2012 data sets are implemented using the stellar atmosphere grid infrastructure. These grids differ in certain aspects from the standard stellar atmosphere grids (e.g., they implicitly set the intensity) which is why they have a separate command syntax: '''''table hm96''''', '''''table hm05''''', and '''''table hm12'''''. See Hazy 1 for further details. The first two data sets are described in [http://arxiv.org/abs/astro-ph/9509093 Haardt & Madau (1996) ApJ 461, 20]. The 2012 grid is described in [http://arxiv.org/abs/1105.2039 Haardt & Madau (2012) ApJ 746, 125]. 
     254These grids give the cosmic ultraviolet background radiation as a function of redshift. The necessary data files are included in the Cloudy distribution by default, so no separate download is necessary. They were calculated with the [http://www.ucolick.org/~pmadau/CUBA/HOME.html CUBA code]. Three versions are available: from 1996, 2005 and 2012. The first data set gives the background for a single redshift, while the latter two give a grid of SEDs as a function of redshift. Since Cloudy version C17, the 2005 and 2012 data sets are implemented using the stellar atmosphere grid infrastructure. These grids differ in certain aspects from the standard stellar atmosphere grids (e.g., they implicitly set the intensity) which is why they have a separate command syntax: '''''table hm96''''', '''''table hm05''''', and '''''table hm12'''''. See Hazy 1 for further details. The first two data sets are described in [http://arxiv.org/abs/astro-ph/9509093 Haardt & Madau (1996) ApJ 461, 20]. The 2012 grid is described in [http://arxiv.org/abs/1105.2039 Haardt & Madau (2012) ApJ 746, 125]. 
    255255 
    256256----