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MPI for Gravitational Physics<p>🚨&nbsp;New header picture&nbsp;🖼️</p><p>Researchers from the independent @maxplanckgesellschaft research group “Binary Merger Observations and Numerical Relativity” have studied how the spins of merging black holes influence the recoil after their merger, and how this in turn influences the remnant spin magnitudes after repeated mergers in dense stellar environments.</p><p>The header picture shows some of their results.</p><p>ℹ️&nbsp;<a href="https://www.aei.mpg.de/1244528/towards-a-deeper-understanding-of-black-hole-origins?c=785562" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">aei.mpg.de/1244528/towards-a-d</span><span class="invisible">eeper-understanding-of-black-hole-origins?c=785562</span></a></p><p>📄&nbsp;<a href="https://arxiv.org/abs/2503.21278" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2503.21278</span><span class="invisible"></span></a> (The header picture is Fig.&nbsp;5 in there)</p><p><a href="https://astrodon.social/tags/HeaderPicture" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HeaderPicture</span></a> <a href="https://astrodon.social/tags/BlackHoles" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackHoles</span></a> <a href="https://astrodon.social/tags/BlackHoleKicks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackHoleKicks</span></a> <a href="https://astrodon.social/tags/BlackHoleWeek" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackHoleWeek</span></a> <a href="https://astrodon.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://astrodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a></p>
MPI for Gravitational Physics<p>🚨&nbsp;New header picture&nbsp;🖼️</p><p>It shows the two supernova remnants Cassiopeia&nbsp;A (left, in X-rays) and Vela&nbsp;Jr. (right, at radio wavelengths). Both harbor a “central compact object”, a neutron star left behind together with the debris cloud after the supernova.</p><p>Researchers from the permanent independent <span class="h-card" translate="no"><a href="https://wisskomm.social/@maxplanckgesellschaft" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>maxplanckgesellschaft</span></a></span> research group “Continuous Gravitational Waves” at <span class="h-card" translate="no"><a href="https://astrodon.social/@mpi_grav" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>mpi_grav</span></a></span> in Hanover, Germany, have been searching for gravitational waves from these central compact objects using the volunteer distributed computing project <span class="h-card" translate="no"><a href="https://academiccloud.social/@einsteinathome" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>einsteinathome</span></a></span>.</p><p>📄 <a href="https://arxiv.org/abs/2503.09731" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2503.09731</span><span class="invisible"></span></a></p><p>The fact that they did not find any gravitational waves indicates that the neutron stars can only be minimally deformed.</p><p>ℹ️ <a href="https://www.aei.mpg.de/1188233/digging-deeper-with-einstein-home?c=26149" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">aei.mpg.de/1188233/digging-dee</span><span class="invisible">per-with-einstein-home?c=26149</span></a></p><p>Images: <a href="http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G111.7m02.1" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">http://</span><span class="ellipsis">snrcat.physics.umanitoba.ca/SN</span><span class="invisible">Rrecord.php?id=G111.7m02.1</span></a> and <a href="http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G266.2m01.2" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">http://</span><span class="ellipsis">snrcat.physics.umanitoba.ca/SN</span><span class="invisible">Rrecord.php?id=G266.2m01.2</span></a></p><p><a href="https://astrodon.social/tags/HeaderPicture" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HeaderPicture</span></a> <a href="https://astrodon.social/tags/supernova" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>supernova</span></a> <a href="https://astrodon.social/tags/CasA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CasA</span></a> <a href="https://astrodon.social/tags/VelaJr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>VelaJr</span></a> <a href="https://astrodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a> <a href="https://astrodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://astrodon.social/tags/NeutronStar" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NeutronStar</span></a></p>
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