MPI for Gravitational Physics<p>There have been two more gravitational-wave candidates in the last 24 hours. Both came - if they are real - from mergers of black holes.</p><p>1️⃣ S250207bg (<a href="https://gracedb.ligo.org/superevents/S250207bg/view/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">gracedb.ligo.org/superevents/S</span><span class="invisible">250207bg/view/</span></a>) is from a (luminosity) distance of around 1.8 billion light years. The signal seems to be very “loud” because the false-alarm rate is 1 in 6,000,000,000,000,000,000,000,000,000,000,000 years. 🤯</p><p>2️⃣ S250208ad (<a href="https://gracedb.ligo.org/superevents/S250208ad/view/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">gracedb.ligo.org/superevents/S</span><span class="invisible">250208ad/view/</span></a>) is from a (luminosity) distance of around 11.3 billion light years.</p><p><a href="https://astrodon.social/tags/GravitationalWaves" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GravitationalWaves</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/O4IsHere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>O4IsHere</span></a> <a href="https://astrodon.social/tags/S250207bg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>S250207bg</span></a> <a href="https://astrodon.social/tags/S250208ad" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>S250208ad</span></a> <a href="https://astrodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</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/astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophysics</span></a></p>