[Commits] [svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1542)

[barry.wardell at gmail.com]

User: barry.wardell
Date: 2016/06/05 05:07 PM

Modified:
 /about/gallery/gw150914/
  index.php

Log:
 GW150914 gallery: Add some text describing the simulation

File Changes:

Directory: /about/gallery/gw150914/
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File [modified]: index.php
Delta lines: +24 -2
===================================================================
--- about/gallery/gw150914/index.php	2016-06-05 22:06:58 UTC (rev 1541)
+++ about/gallery/gw150914/index.php	2016-06-05 22:07:05 UTC (rev 1542)
@@ -6,10 +6,32 @@
      $sim_stats = json_decode(file_get_contents("stats.json"), true);
   ?>
 
-<p>As observed by LIGO; the first detection of gravitational waves</p>
+<p>On February 11, 2016, the <a href="http://www.ligo.org/">LIGO collaboration</a> <a
+href="http://www.ligo.org/news/detection-press-release.pdf">announced</a> that they had achieved
+the first ever direct detection of gravitational waves. The gravitational waves – which were
+detected by both LIGO detectors on September 14, 2015 at 09:51 UTC – were generated over a billion
+years ago by the merger of a binary black hole system. The announcement came along with the
+simultaneous publication of a peer-reviewed paper [<a
+href="http://dx.doi.org/10.1103/PhysRevLett.116.061102">Phys. Rev. Lett. 116, 061102</a>]; several
+other papers giving technical details; and a full release of the <a
+href="https://losc.ligo.org/events/GW150914/">data from the detection</a>, which has been given the
+name GW150914.
 
-  <p>This simulation shows how to evolve a binary black hole system for the last 6 orbits through to merger. </p>
+<p>The <a href="http://arxiv.org/abs/1602.03840">LIGO analysis</a> found that the merger consisted
+of a 36 + 29 solar mass binary black hole system, the remnant was a 62 solar mass black hole, and
+the remaining 3 solar masses were radiated as gravitational waves. This simulation shows how to use
+the Einstein Toolkit to evolve the last 6 orbits and merger of a binary black hole system with
+parameters that match the GW150914 event. Along with the associated tutorials, it shows how to
+extract waveforms and other physical properties from the simulated spacetime; how to visualise the
+3D data generated by the simulation; and how to produce a numerical relativity waveform of the kind
+that may be used for the analysis of LIGO signals.</p>
 
+<p>A subset of the simulation data &mdash; including everything required to follow the VisIt and
+SimulationTools tutorials without having to run the simulation &mdash; is available for downloaded
+below. The full simulation output additionally includes multiple resolutions and considerable 2D
+and 3D output, and totals several terabytes in size; as such it will be made available for download
+once a suitable distribution method has been found.</p>
+
   <div style="display:inline-block; margin-right: 20px">
   <h4>Physical parameters</h4>
   <table>