Modelling atmospheres with PHOENIX

<h2 align=center> <font color="red"> Modeling atmospheres with <font size="+3"><tt><b>PHOENIX</b></tt></font><br> </font> </h2> <p> <tt>PHOENIX</tt> is a general-purpose state-of-the-art stellar and planetary atmosphere code. It can calculate atmospheres and spectra of stars all across the HR-diagram including main sequence stars, giants, white dwarfs, stars with winds, TTauri stars, Novae, Supernovae, brown dwarfs and extrasolar giant planets. To get informations of the most important object classes you can use the following links: <ul> <li><a target="main" href="novae.html">Novae</a><br> <li><a target="main" href="supernova.html">Supernovae</a><br> <li><a target="main" href="cool_stars.html">Cool stars</a><br> <li><a target="main" href="sub_stellar.html">Substellar objects</a><br> <li>Radiation transport<br> <li>Algorithms<br> <li><a target="main" href="gaia_info.html">Support for the GAIA mission</a><br> </ul> <tt>PHOENIX</tt> runs on parallel machines since several years. So, we use clusters of parallel computers. You can find a description under <a target="main" href="computing.html">computing</a>.<br> <br> There are people all around the world working on <tt>PHOENIX</tt>. You can get a list of the <a target="main" href="members.html">project members</a>. Our local group is working at the <a target="_top" href="http://www.hs.uni-hamburg.de/">Hamburger Sternwarte</a>.<br> <br> Students are welcome to work on <tt>PHOENIX</tt>, too. Here you can find informations about <a target="main" href="vorlesung_ws0405.html">lectures</a> and <a target="main" href="arbeiten.html">diploma and PhD theses</a> (in german only).<br> <br> We've listed our <a target="main" href="publications.html">publications in journals</a>, the <a target="main" href="articles.html">scientific and popular articles</a> about <tt>PHOENIX</tt>, our <a target="main" href="proceedings.html">proceeding articles</a>, <a target="main" href="talks.html">talks</a>, and <a target="main" href="theses.html">PhD and diploma theses</a>, and there are <a target="main" href="manuals.html">manuals and documentations</a> available for <tt>PHOENIX</tt>. For people who want to get informations by fast file transfer we have installed a <a target="main" href="ftp://ftp.hs.uni-hamburg.de/pub/outgoing/phoenix">FTP server</a>. There are links for <a target="main" href="other_projects.html">other projects</a> which are colleagues, friends and relatives of <tt>PHOENIX</tt>. <p> <hr size="2"><br> <h3> <font color="red"> Features of <tt><b>PHOENIX</b></tt> </font> </h3> <p> The latest changes to <tt>PHOENIX</tt> and its history can be found <a target="main" href="documents/phoenix_history.txt">here</a>. This is taken from the source code automatically every night. <ul> <li>1D plane parallel or spherical symmetric radiative transfer <li>static or (up to relativistic) expanding media <li>the radiative transfer equation is solved using operator splitting <li>multilevel NLTE calculations for atoms with a total of more than 10000 levels and 100000 primary lines <li>the NLTE rate equations are solved using operator splitting techniques <li>usage of four atomic databases with NLTE transitions: CHIANTI Version 3 and 4, APED (ATOMDB) and the primary PHOENIX database <li>line blanketing and background opacities are included by design <li>over 650 species in the EOS including atoms, ions, molecules and grains <li>depth dependent Voigt profiles for Stark and van der Waals broadening <li>dynamical opacity sampling (dOS) of about 42 Million atomic lines and over 550 Million (and growing) molecular lines (more than 10GB worth of data) <li>spectra can be calculated for any desired resolution (standard are 20000 to 500000 wavelength points spread from the UV to the radio) <li>... and more .. </ul> Everybody likes screenshots, so here is one : <a href="images/phoenix_screenshot.jpg"><img src="images/phoenix_screenshot.gif" alt="Click to see the PHOENIX screenshot"></a> <p> Some remarks about CPU speeds (PHOENIX relevant benchmarks) and Fortran compilers can be found in <a target="main" href="computing.html">computing</a>. <p> <hr size="2"><br> <p> This pages are designed by the Hamburg <tt>PHOENIX</tt> group and are part of the Hamburger Sternwarte.<br><br> <b>Disclaimer: We do not take any guarantee for the completeness and correctness of informations on webpages, which can be reached over links on our pages. Furthermore, we do not take any liability for the contents and links on webpages for which we are not responsible for.</b> <p> <hr size="2"><br> <p> This page was last modified by <a href="mailto:aseelmann@hs.uni-hamburg.de">Andreas Seelmann</a> on Wednesday, 22-Jul-2009 17:51:09 CEST. <br> This page is part of of the <a target="_top" href="index.html"><tt><b>PHOENIX</b></tt> home page</a>. <p> <a href="http://validator.w3.org/check/referer"><img border="0" src="images/valid-html401.png" alt="Valid HTML 4.01!" height="31" width="88"></a>