Commits June 2016

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129 discussions

[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1547)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:08 PM Modified: /about/gallery/gw150914/ index.php Log: GW150914 gallery: Add a couple of movies File Changes: Directory: /about/gallery/gw150914/ =================================== File [modified]: index.php Delta lines: +2 -0 =================================================================== --- about/gallery/gw150914/index.php 2016-06-05 22:07:25 UTC (rev 1546) +++ about/gallery/gw150914/index.php 2016-06-05 22:08:58 UTC (rev 1547) @@ -94,6 +94,8 @@ <h4>Gravitational waves</h4> <a href="Strain.png"><img src="Strain.png" alt="h_+ at t=700M" width="400" height="300"/></a> +<iframe width="560" height="315" src="https://www.youtube.com/embed/pabnzdDaf8A" frameborder="0" allowfullscreen></iframe> +<iframe width="560" height="315" src="https://www.youtube.com/embed/GW7fQiG7caU" frameborder="0" allowfullscreen></iframe> <h4>Gravitational waveform</h4> <a href="waveform.png"><img src="waveform.png" alt="h_+^{2,2} at r=500M as a function of retarded time" width="542" height="191"/></a>

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[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1546)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:07 PM Modified: /about/gallery/gw150914/ index.php Log: GW150914 gallery: Tidy up structure and layout File Changes: Directory: /about/gallery/gw150914/ =================================== File [modified]: index.php Delta lines: +27 -44 =================================================================== --- about/gallery/gw150914/index.php 2016-06-05 22:07:20 UTC (rev 1545) +++ about/gallery/gw150914/index.php 2016-06-05 22:07:25 UTC (rev 1546) @@ -32,6 +32,7 @@ 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> +<h3>Simulation details</h3> <div style="display:inline-block; margin-right: 20px"> <h4>Physical parameters</h4> <table> @@ -62,48 +63,9 @@ <tr><th>Cost</th><td><?php echo $sim_stats['CostInCoreHours']?> core hours</td></tr> </table> - <ul class="gallerytable"> - <li class="gallerytable"> - <div class="gallerytable"> - <h4 class="gallerytable">Horizons</h4> - <a href="horizons.png"><img src="horizons.png" alt="BH horizons"/></a> - </div> - </li> - - <li class="gallerytable"> - <div class="gallerytable"> - <h4 class="gallerytable">Horizon coordinate trajectories</h4> - <a href="trajectories.png"><img src="trajectories.png" alt="BH trajectories" width="242" height="237"/></a> - </div> - </li> - <li class="gallerytable"> - <div class="gallerytable"> - <h4 class="gallerytable">Curvature scalars</h4> - <div style="display:block;"> - <a href="ReI.png"><img src="ReI.png" alt="R_{abcd} R^{abcd}" width="357" height="300"/></a> - <a href="ImI.png"><img src="ImI.png" alt="R^*_{abcd} R^{abcd}" width="342" height="300"/></a> - <a href="RePsi4.png"><img src="RePsi4.png" alt="Re(Psi_4)" width="299" height="300"/></a> - </div> - </div> - </li> - - <li class="gallerytable"> - <div class="gallerytable"> - <h4 class="gallerytable">Gravitational waves</h4> - <a href="Strain.png"><img src="Strain.png" alt="h_+ at t=700M" width="400" height="300"/></a> - </div> - </li> - - <li class="gallerytable"> - <div class="gallerytable"> - <h4 class="gallerytable">Gravitational waveform</h4> - <a href="waveform.png"><img src="waveform.png" alt="h_+^{2,2} at r=500M as a function of retarded time" width="542" height="191"/></a> - </div> - </li> - </ul> - - <h4>Tutorials</h4> +<h3>Tutorials and data</h3> +<h4>Tutorials</h4> <ul> <li><a href="https://bitbucket.org/barrywardell/gw150914sim/wiki/Simulation%20tutorial">Compile and run</a>: Compile the code and run the simulation</li> @@ -111,8 +73,29 @@ <li><a href="https://bitbucket.org/barrywardell/gw150914sim/wiki/Visualising%20the%20spa…">Visualisation</a>: Visualise the data using VisIt</li> </ul> - +<h4>Simulation data</h3> +<ul> + <li><a href="GW150914_32.tar.gz">Lightweight simulation data</a> (500MB)</li> + <li>Full simulation data (available on request)</li> +</ul> +<h3>Images and movies</h3> + +<h4>Horizons</h4> +<a href="horizons.png"><img src="horizons.png" alt="BH horizons"/></a> + +<h4>Horizon coordinate trajectories</h4> +<a href="trajectories.png"><img src="trajectories.png" alt="BH trajectories" width="242" height="237"/></a> + +<h4>Curvature scalars</h4> +<a href="ReI.png"><img src="ReI.png" alt="R_{abcd} R^{abcd}" width="357" height="300"/></a> +<a href="ImI.png"><img src="ImI.png" alt="R^*_{abcd} R^{abcd}" width="342" height="300"/></a> +<a href="RePsi4.png"><img src="RePsi4.png" alt="Re(Psi_4)" width="299" height="300"/></a> + +<h4>Gravitational waves</h4> +<a href="Strain.png"><img src="Strain.png" alt="h_+ at t=700M" width="400" height="300"/></a> + +<h4>Gravitational waveform</h4> +<a href="waveform.png"><img src="waveform.png" alt="h_+^{2,2} at r=500M as a function of retarded time" width="542" height="191"/></a> + <?php include_once($_SERVER['DOCUMENT_ROOT'].'/global/footer.php');?>

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[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1545)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:07 PM Added: /about/gallery/gw150914/ Curvature.m, Strain.m Log: GW150914 gallery: Add scripts for generating images with SimulationTools File Changes: Directory: /about/gallery/gw150914/ =================================== File [added]: Curvature.m Delta lines: +71 -0 =================================================================== --- about/gallery/gw150914/Curvature.m (rev 0) +++ about/gallery/gw150914/Curvature.m 2016-06-05 22:07:20 UTC (rev 1545) @@ -0,0 +1,71 @@ +<<SimulationTools` + + +simDirs = ReplaceList[$ScriptCommandLine, + {___, "--simulations-directory", val_, ___} :> val]; + +$SimulationPath = Join[simDirs, $SimulationPath]; + +outDir = Directory[]; + +sim="GW150914_32"; + + +coords1min=ReadAHColumns[sim,1,{15,17,19}]; +coords2min=ReadAHColumns[sim,2,{15,17,19}]; +coords1max=ReadAHColumns[sim,1,{16,18,20}]; +coords2max=ReadAHColumns[sim,2,{16,18,20}]; +{coords1mini,coords2mini,coords1maxi,coords2maxi}=Interpolation/@{coords1min,coords2min,coords1max,coords2max}; +horizons[t_]:=Show[Graphics3D[{Black,Opacity[1.0],Specularity[0.7],Ellipsoid[(coords1mini[t]+coords1maxi[t])/2,(coords1maxi[t]-coords1mini[t])/2]}],Graphics3D[{Black,Opacity[1.0],Specularity[0.7],Ellipsoid[(coords2mini[t]+coords2maxi[t])/2,(coords2maxi[t]-coords2mini[t])/2]}]] + + +(* This function takes a DataRegion on the upper half plane (z\[GreaterEqual]0) and reproduces the data on the full domain assuming the quantity is reflection symmetric about the plane z=0 *) +UpperHalfToFull[d_DataRegion, parity_:1]:= +Module[{dx,dy,dz,xrange,yrange,zrange,fulldata}, +{dx,dy,dz}=CoordinateSpacings[d]; +{xrange,yrange,zrange}=CoordinateRanges[d]; +fulldata=Join[ +parity Map[Reverse,ToListOfData[Slab[d,All,All,0;;]],{2}], +ToListOfData[Slab[d,All,All,(0+dz);;]], +3]; +ToDataRegion[fulldata,{xrange[[1]],yrange[[1]],-zrange[[2]]},{dx,dy,dz},"VariableName"->VariableName[d]] +]; + + +Re\[Psi]4=ReadGridFunction[sim,"Psi4r","xyz","RefinementLevel"->3,"Map"->0,Iteration->0]; + + +Re\[Psi]4full=UpperHalfToFull[Re\[Psi]4]; + + +its=ReadIterations[sim,"curvIr","xyz",RefinementLevel->3,Map->0]; + + +Re\[ScriptCapitalI]=ReadGridFunction[sim,"curvIr","xyz","RefinementLevel"->3,"Map"->0,"Iteration"->0]; +Im\[ScriptCapitalI]=ReadGridFunction[sim,"curvIi","xyz","RefinementLevel"->3,"Map"->0,"Iteration"->0]; +Re\[ScriptCapitalJ]=ReadGridFunction[sim,"curvJr","xyz","RefinementLevel"->3,"Map"->0,"Iteration"->0]; +Im\[ScriptCapitalJ]=ReadGridFunction[sim,"curvJi","xyz","RefinementLevel"->3,"Map"->0,"Iteration"->0]; + + +Re\[ScriptCapitalI]full=UpperHalfToFull[Re\[ScriptCapitalI]]; +Im\[ScriptCapitalI]full=UpperHalfToFull[Im\[ScriptCapitalI],-1]; +Re\[ScriptCapitalJ]full=UpperHalfToFull[Re\[ScriptCapitalJ]]; +Im\[ScriptCapitalJ]full=UpperHalfToFull[Im\[ScriptCapitalJ],-1]; + + +Psi4Plot=Show[ListContourPlot3D[Re\[Psi]4full,Contours->{-0.01,-0.006,-0.003,-0.001,-0.0005,0.0005,0.001,0.003,0.006,0.01},ContourStyle->Opacity[0.3],Background->Black,Mesh->None,ColorFunction->Function[{x,y,z,f},If[f>0,ColorData[{"DeepSeaColors","Reverse"}][200f],ColorData[{"SolarColors","Reverse"}][-200f]]],ColorFunctionScaling->False,BoxRatios->Automatic],horizons[0],Boxed->False,Axes->False]; + + +Export[FileNameJoin[{outDir,"RePsi4.png"}],Psi4Plot,ImageSize->{Automatic,2160}] + + +ReIPlot=Show[ListContourPlot3D[Re\[ScriptCapitalI]full,Contours->10^{-1,-2,-3,-4,-5},ContourStyle->Opacity[0.3],Background->Black,Mesh->None,BoxRatios->Automatic,ColorFunction->ColorData[{"DeepSeaColors","Reverse"}]],horizons[0],Boxed->False,Axes->False]; + + +Export[FileNameJoin[{outDir,"ReI.png"}],ReIPlot,ImageSize->{Automatic,2160}] + + +ImIPlot=Show[ListContourPlot3D[Im\[ScriptCapitalI]full,Contours->Join[-10^{-1,-2,-3,-4,-5,-5.5},10^{-1,-2,-3,-4,-5,-5.5}],ContourStyle->Opacity[0.3],Background->Black,Mesh->None,BoxRatios->Automatic,ColorFunction->Function[{x,y,z,f},If[f>0,ColorData[{"DeepSeaColors","Reverse"}][30000f],ColorData[{"SolarColors","Reverse"}][-30000f]]],ColorFunctionScaling->False],horizons[0],Boxed->False,Axes->False]; + + +Export[FileNameJoin[{outDir,"ImI.png"}],ImIPlot,ImageSize->{Automatic,2160}] File [added]: Strain.m Delta lines: +69 -0 =================================================================== --- about/gallery/gw150914/Strain.m (rev 0) +++ about/gallery/gw150914/Strain.m 2016-06-05 22:07:20 UTC (rev 1545) @@ -0,0 +1,69 @@ +<<SimulationTools` + + +simDirs = ReplaceList[$ScriptCommandLine, + {___, "--simulations-directory", val_, ___} :> val]; + +$SimulationPath = Join[simDirs, $SimulationPath]; + +outDir = Directory[]; + + +sim="GW150914_32"; + + +MADM=ReadADMMass[sim]; + + +coords1min=ReadAHColumns[sim,1,{15,17,19}]; +coords2min=ReadAHColumns[sim,2,{15,17,19}]; +coords1max=ReadAHColumns[sim,1,{16,18,20}]; +coords2max=ReadAHColumns[sim,2,{16,18,20}]; +{coords1mini,coords2mini,coords1maxi,coords2maxi}=Interpolation/@{coords1min,coords2min,coords1max,coords2max}; +horizons[t_]:=Show[Graphics3D[{Black,Opacity[1.0],Specularity[0.7],Ellipsoid[(coords1mini[t]+coords1maxi[t])/2,(coords1maxi[t]-coords1mini[t])/2]}],Graphics3D[{Black,Opacity[1.0],Specularity[0.7],Ellipsoid[(coords2mini[t]+coords2maxi[t])/2,(coords2maxi[t]-coords2mini[t])/2]}]] + + +r0=500; + + +Do[\[Psi]4[l,m]=ReadPsi4[sim,l,m,r0],{l,2,8},{m,-l,l}]; +Do[r\[Psi]4[l,m]=Shifted[r0 \[Psi]4[l,m],-RadialToTortoise[r0,MADM]],{l,2,8},{m,-l,l}]; + + +tMerger=LocateMaximumPoint[Abs[r\[Psi]4[2,2]]]; + + +modes=Sort[Flatten[Table[{l,m,Interpolation[Abs[r\[Psi]4[l,m]],tMerger]},{l,2,8},{m,-l,l}],1],#1[[3]]>#2[[3]]&]; + + +strongestmodes=modes[[1;;8,1;;2]]; + + +\[Omega]0=0.025; + + +Do[rh[l,m]=Psi4ToStrain[r\[Psi]4[l,m],\[Omega]0],{l,2,8},{m,-l,l}] + + +Table[rhinterp[l,m]=Interpolation[PadRight[Slab[rh[l,m],MinCoordinate[rh[l,m]];;1050],4000]],{l,2,8},{m,-l,l}]; + + +SpinWeightedSphericalHarmonic[s_,l_,m_,\[Theta]_,\[Phi]_]:=Sqrt[(2 l+1)/(4\[Pi]) ((l+m)!(l-m)!)/((l+s)!(l-s)!)] E^(I m \[Phi]) Sin[\[Theta]/2]^(2 l) \!$ +\*UnderoverscriptBox[\(\[Sum]$, $r = Max[m - s, 0]$, $Min[l - s, l + m]$]$Binomial[l - s, r]\ Binomial[l + s, r + s - m]\ +\*SuperscriptBox[\((\(-1$)\), $l - r - s$]\ \ +\*SuperscriptBox[$Cot[\[Theta]/2]$, $2\ r + s - m$]\)\); + + +rhr\[Theta]\[Phi][r_,\[Theta]_,\[Phi]_]:=With[{t=700},Re[Sum[If[MemberQ[strongestmodes,{l,m}],rhinterp[l,m][t-TortoiseToRadial[r,MADM]]SpinWeightedSphericalHarmonic[-2,l,m,\[Theta],\[Phi]],0],{l,2,8},{m,-l,l}]]]; + + +strainPlot=With[{x0=1.15 0.06,x1=1.15 0.0825,x2=1.2 0.0525,x3=1.2 0.0825}, +DensityPlot3D[ +Evaluate[With[{r=Sqrt[x^2+y^2+z^2],\[Theta]=ArcCos[z/Sqrt[x^2+y^2+z^2]],\[Phi]=ArcTan[x,y]},rhr\[Theta]\[Phi][r,\[Theta],\[Phi]]]], +{x,-200,200},{y,-200,200},{z,-200,200},ColorFunctionScaling->False,ColorFunction->Function[{f},If[f>0,ColorData[{"DeepSeaColors","Reverse"}][(f-x0)/(x1-x0)],ColorData[{"SolarColors","Reverse"}][(-f-x0)/(x1-x0)]]],OpacityFunctionScaling->False,OpacityFunction-> Function[{f},Max[Min[(Abs[f]-x2)/(x3-x2),1.0],0]],Background->Black,Boxed->False,Axes->False,ViewPoint->Front,ViewAngle->31 Degree,PlotPoints->200,PlotRange->200{{-1,1},{-1,1},{-1,1}}]]; + + +strainHorizonPlot=Show[strainPlot,horizons[745],ViewAngle->28Degree,ImageSize->{400,300}]; + + +Export[FileNameJoin[{outDir,"StrainHorizon.png"}],strainHorizonPlot,ImageSize->{400,300}2160/300]

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[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1544)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:07 PM Modified: /about/gallery/gw150914/ index.php Log: GW150914 gallery: Clairfy which ET release thornlist was used File Changes: Directory: /about/gallery/gw150914/ =================================== File [modified]: index.php Delta lines: +1 -1 =================================================================== --- about/gallery/gw150914/index.php 2016-06-05 22:07:10 UTC (rev 1543) +++ about/gallery/gw150914/index.php 2016-06-05 22:07:15 UTC (rev 1544) @@ -55,7 +55,7 @@ <h4>Computational details</h4> <table> <tr><th>Parameter file</th><td><a href="GW150914.rpar">GW150914.rpar</a></td></tr> - <tr><th>Thornlist</th><td><a href="GW150914.th">GW150914.th</a> (Llama multi-block code added to ET release version)</td></tr> + <tr><th>Thornlist</th><td><a href="GW150914.th">GW150914.th</a> (Llama multi-block code added to ET_2015_11 release version)</td></tr> <tr><th>Submission command</th><td>simfactory/bin/sim create-submit GW150914_28 --define N 28 --parfile repos/GW150914/ParameterFiles/GW150914.rpar --procs 128 --walltime 24:00:00</td></tr> <tr><th>Total memory</th><td><?php echo $sim_stats['TotalMemory']?> GB</td></tr> <tr><th>Run time</th><td><?php echo $sim_stats['Runtime']?> days on <?php echo $sim_stats['Cores']?> cores (Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz)</td></tr>

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[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1543)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:07 PM Modified: /about/gallery/gw150914/ index.php Log: GW159014 gallery: Improve appearance of physical parameters table File Changes: Directory: /about/gallery/gw150914/ =================================== File [modified]: index.php Delta lines: +3 -3 =================================================================== --- about/gallery/gw150914/index.php 2016-06-05 22:07:05 UTC (rev 1542) +++ about/gallery/gw150914/index.php 2016-06-05 22:07:10 UTC (rev 1543) @@ -36,9 +36,9 @@ <h4>Physical parameters</h4> <table> <tr><th>Initial separation D</th><td>10 M</td></tr> - <tr><th>Mass ratio q = m1/m2</th><td>36/29 ~ 1.24</td></tr> - <tr><th>Spin chi1 = a1/m1</th><td>0.31</td></tr> - <tr><th>Spin chi2 = a2/m2</th><td>-0.46</td></tr> + <tr><th>Mass ratio q = m<sub>1</sub>/m<sub>2</sub></th><td>36/29 ~ 1.24</td></tr> + <tr><th>Spin χ<sub>1</sub> = a<sub>1</sub>/m<sub>1</sub></th><td>0.31</td></tr> + <tr><th>Spin χ<sub>2</sub> = a<sub>2</sub>/m<sub>2</sub></th><td>-0.46</td></tr> </table> </div>

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[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1542)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

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/ =================================== 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 â which were +detected by both LIGO detectors on September 14, 2015 at 09:51 UTC â 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 — including everything required to follow the VisIt and +SimulationTools tutorials without having to run the simulation — 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>

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[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1541)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:06 PM Added: /about/gallery/gw150914/ Strain.png Modified: /about/gallery/gw150914/ index.php Log: GW150914 gallery: Add 3D plot of strain File Changes: Directory: /about/gallery/gw150914/ =================================== File [added]: Strain.png Delta lines: <Unavailable> File [modified]: index.php Delta lines: <Unavailable>

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[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1540)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:06 PM Added: /about/gallery/gw150914/ ImI.png, ReI.png, RePsi4.png Modified: /about/gallery/gw150914/ index.php Log: GW150914 gallery: Add visualisation of curvature scalars File Changes: Directory: /about/gallery/gw150914/ =================================== File [added]: ImI.png Delta lines: <Unavailable> File [added]: ReI.png Delta lines: <Unavailable> File [added]: RePsi4.png Delta lines: <Unavailable> File [modified]: index.php Delta lines: <Unavailable>

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[svn:einsteintoolkit] www/about/gallery/ (Rev. 1539)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:06 PM Modified: /about/gallery/ index.php /about/gallery/gw150914/ index.php Log: gallery: Correct HTML validation errors File Changes: Directory: /about/gallery/ ========================== File [modified]: index.php Delta lines: +8 -16 =================================================================== --- about/gallery/index.php 2016-06-05 22:05:55 UTC (rev 1538) +++ about/gallery/index.php 2016-06-05 22:06:01 UTC (rev 1539) @@ -8,7 +8,7 @@ and thornlists that have been used. Some might not, which is mostly due to the use of external code which isn't public. We want to promote the use of open source software in science, which is why we put these examples -first. +first.</p> <h3>Using exclusively the Einstein Toolkit</h3> @@ -23,26 +23,20 @@ <ul class="gallerytable"> <li class="gallerytable"> <div class="gallerytable"> - <a href="tov"> - <h4 class="gallerytable">Single, stable neutron star</h4> - <img src="tov/rho_max.png" class="gallerytable"> - </a> + <h4 class="gallerytable"><a href="tov">Single, stable neutron star</a></h4> + <a href="tov"><img src="tov/rho_max.png" class="gallerytable" alt="Central density"/></a> </div> </li> <li class="gallerytable"> <div class="gallerytable"> - <a href="NsNsToHMNS"> - <h4 class="gallerytable">Binary neutron star</h4> - <img src="NsNsToHMNS/rho.png" class="gallerytable"> - </a> + <h4 class="gallerytable"><a href="NsNsToHMNS">Binary neutron star</a></h4> + <a href="NsNsToHMNS"><img src="NsNsToHMNS/rho.png" class="gallerytable" alt="Density"/></a> </div> </li> <li class="gallerytable"> <div class="gallerytable"> - <a href="poisson"> - <h4 class="gallerytable">Poisson equation</h4> - <img src="poisson/psi.png" class="gallerytable"/> - </a> + <h4 class="gallerytable"><a href="poisson">Poisson equation</a></h4> + <a href="poisson"><img src="poisson/psi.png" class="gallerytable" alt="Solution phi"/></a> </div> </li> </ul> @@ -58,10 +52,8 @@ <ul class="gallerytable"> <li class="gallerytable"> <div class="gallerytable"> - <a href="gw150914"> <h4 class="gallerytable">Binary black hole GW150914</h4> - <img src="gw150914/horizons.png" class="gallerytable"/> - </a> + <a href="gw150914"><img src="gw150914/horizons.png" class="gallerytable" alt="Horizons"/></a> </div> </li> </ul> Directory: /about/gallery/gw150914/ =================================== File [modified]: index.php Delta lines: +3 -5 =================================================================== --- about/gallery/gw150914/index.php 2016-06-05 22:05:55 UTC (rev 1538) +++ about/gallery/gw150914/index.php 2016-06-05 22:06:01 UTC (rev 1539) @@ -40,27 +40,25 @@ <tr><th>Cost</th><td><?php echo $sim_stats['CostInCoreHours']?> core hours</td></tr> </table> -<p> - <ul class="gallerytable"> <li class="gallerytable"> <div class="gallerytable"> <h4 class="gallerytable">Horizons</h4> - <a href="horizons.png"><img src="horizons.png" alt="BH horizons"></a> + <a href="horizons.png"><img src="horizons.png" alt="BH horizons"/></a> </div> </li> <li class="gallerytable"> <div class="gallerytable"> <h4 class="gallerytable">Horizon coordinate trajectories</h4> - <a href="trajectories.png"><img src="trajectories.png" alt="BH trajectories" width="242" height="237"></a> + <a href="trajectories.png"><img src="trajectories.png" alt="BH trajectories" width="242" height="237"/></a> </div> </li> <li class="gallerytable"> <div class="gallerytable"> <h4 class="gallerytable">Gravitational waveform</h4> - <a href="waveform.png"><img src="waveform.png" alt="h_+^{2,2} at r=500M as a function of retarded time" width="542" height="191"></a> + <a href="waveform.png"><img src="waveform.png" alt="h_+^{2,2} at r=500M as a function of retarded time" width="542" height="191"/></a> </div> </li> </ul>

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[svn:einsteintoolkit] www/about/gallery/gw150914/ (Rev. 1538)
by barry.wardell＠gmail.com 05 Jun '16

05 Jun '16

User: barry.wardell Date: 2016/06/05 05:05 PM Modified: /about/gallery/gw150914/ index.php Log: gw150914: Link to images from images File Changes: Directory: /about/gallery/gw150914/ =================================== File [modified]: index.php Delta lines: +3 -3 =================================================================== --- about/gallery/gw150914/index.php 2016-06-05 22:05:51 UTC (rev 1537) +++ about/gallery/gw150914/index.php 2016-06-05 22:05:55 UTC (rev 1538) @@ -46,21 +46,21 @@ <li class="gallerytable"> <div class="gallerytable"> <h4 class="gallerytable">Horizons</h4> - <a><img src="horizons.png" alt="BH horizons"></a> + <a href="horizons.png"><img src="horizons.png" alt="BH horizons"></a> </div> </li> <li class="gallerytable"> <div class="gallerytable"> <h4 class="gallerytable">Horizon coordinate trajectories</h4> - <a href="h22.asc"><img src="trajectories.png" alt="BH trajectories" width="242" height="237"></a> + <a href="trajectories.png"><img src="trajectories.png" alt="BH trajectories" width="242" height="237"></a> </div> </li> <li class="gallerytable"> <div class="gallerytable"> <h4 class="gallerytable">Gravitational waveform</h4> - <a href="h22.asc"><img src="waveform.png" alt="h_+^{2,2} at r=500M as a function of retarded time" width="542" height="191"></a> + <a href="waveform.png"><img src="waveform.png" alt="h_+^{2,2} at r=500M as a function of retarded time" width="542" height="191"></a> </div> </li> </ul>

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