<div dir="ltr"><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Britton Smith</b> <span dir="ltr"><<a href="mailto:brittonsmith@gmail.com">brittonsmith@gmail.com</a>></span><br>Date: Tue, Nov 1, 2016 at 10:18 AM<br>Subject: ANN: Grackle 3.0 released + method paper<br>To: "<a href="mailto:grackle-cooling-users@googlegroups.com">grackle-cooling-users@googlegroups.com</a>" <<a href="mailto:grackle-cooling-users@googlegroups.com">grackle-cooling-users@googlegroups.com</a>>, yt users <<a href="mailto:yt-users@lists.spacepope.org">yt-users@lists.spacepope.org</a>>, "<a href="mailto:enzo-users@googlegroups.com">enzo-users@googlegroups.com</a>" <<a href="mailto:enzo-users@googlegroups.com">enzo-users@googlegroups.com</a>>, <a href="mailto:santacruzgalaxy-list@lists.ucsc.edu">santacruzgalaxy-list@lists.ucsc.edu</a><br><br><br><div dir="ltr"><div><div><div>Hello!</div><div><br></div><div>We are excited to announce the release of Grackle 3.0! The Grackle is</div><div>a library for chemistry and radiative cooling in astrophysical</div><div>simulations and models.</div><div><br></div><div>We are also happy to announce the Grackle method paper, submitted to</div><div>MNRAS and available on arXiv today as 1610.09591, viewable here:</div><div><a href="https://arxiv.org/abs/1610.09591" target="_blank">https://arxiv.org/abs/1610.<wbr>09591</a>.</div><div>All comments welcome. If you use Grackle in your work, please cite</div><div>this paper from now on.</div><div><br></div><div>Grackle 3.0 uses a totally new API that is not backward compatible</div><div>with Grackle 2.x versions. However, the new API is much more flexible</div><div>and should allow future development to occur without again breaking</div><div>backward compatibility.</div><div><br></div><div>Grackle 3.0 comes with a number of new features:</div><div><br></div><div>* Support for radiation transfer fields: photo-heating plus HI, HeI,</div><div> and HeII photo-ionization, and H2 photo-dissociation fields.</div><div><br></div><div>* Support for field arrays of volumetric and specific heating rates.</div><div><br></div><div>* Approximate atomic self-shielding of UV backgrounds.</div><div><br></div><div>* Added Case B recombination cooling rates and updated Case A</div><div> recombination rates.</div><div><br></div><div>Minor enhancements:</div><div><br></div><div>* Updated testing framework.</div><div><br></div><div>* Documentation improvements.</div><div><br></div><div>Bugfixes:</div><div><br></div><div>* Fixed unit normalization for k4 Case B recombination rate.</div><div><br></div><div>* Fixed scaling of low-density H2 cooling rate and use newer H2 LTE</div><div> rate in all appropriate places.</div><div><br></div><div>Grackle can be obtained at: <a href="https://bitbucket.org/grackle/grackle" target="_blank">https://bitbucket.org/grackle/<wbr>grackle</a></div><div>The documentation can be found here: <a href="http://grackle.readthedocs.io/" target="_blank">http://grackle.readthedocs.io/</a></div><div><br></div><div>Since Grackle 2.0, the Grackle has received contributions from 9</div><div>individuals:</div><div><br></div><div>Greg Bryan</div><div>Andrew Emerick</div><div>Simon Glover</div><div>Nathan Goldbaum</div><div>Cameron Hummels</div><div>Edward Leong</div><div>John Regan</div><div>Hsi-Yu Schive</div><div>Britton Smith</div><div><br></div><div>We thank these people for their contributions. Development of Grackle</div><div>happens in the open on Bitbucket:</div><div><a href="https://bitbucket.org/grackle/grackle" target="_blank">https://bitbucket.org/grackle/<wbr>grackle</a>. We welcome new contributors.</div><div><br></div><div>-The Grackle development team</div></div></div></div><span class="HOEnZb"><font color="#888888">
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