NASA<p>Hubble Visits Glittering Cluster, Capturing Its Ultraviolet Light <a href="https://science.nasa.gov/missions/hubble/hubble-visits-glittering-cluster-capturing-its-ultraviolet-light/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/missions/hubb</span><span class="invisible">le/hubble-visits-glittering-cluster-capturing-its-ultraviolet-light/</span></a> <a href="https://social.beachcom.org/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://social.beachcom.org/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://social.beachcom.org/tags/AstrophysicsDivision" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstrophysicsDivision</span></a> <a href="https://social.beachcom.org/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a> <a href="https://social.beachcom.org/tags/GoddardSpaceFlightCenter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GoddardSpaceFlightCenter</span></a> <a href="https://social.beachcom.org/tags/HubbleSpaceTelescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HubbleSpaceTelescope</span></a> <a href="https://social.beachcom.org/tags/StarClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>StarClusters</span></a> <a href="https://social.beachcom.org/tags/Stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Stars</span></a> <a href="https://social.beachcom.org/tags/TheUniverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TheUniverse</span></a></p>
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Matt Willemsen<p>Mystery in the Stars: Hubble Unveils Omega Centauri’s Hidden Monster<br><a href="https://scitechdaily.com/mystery-in-the-stars-hubble-unveils-omega-centauris-hidden-monster/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">scitechdaily.com/mystery-in-th</span><span class="invisible">e-stars-hubble-unveils-omega-centauris-hidden-monster/</span></a> <a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/OmegaCentauri" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OmegaCentauri</span></a> <a href="https://mastodon.social/tags/BlackHole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackHole</span></a> <a href="https://mastodon.social/tags/IMBHs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IMBHs</span></a> <a href="https://mastodon.social/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a></p>
CosmicRami<p>*** SCIENCE GOODIE*** 📡</p><p>A few weeks back wrote an article about the news of the Intermediate-Mass Black Hole inferred at the centre of Omega Cent. and wrote how we can use millisecond pulsars to really zone in on it.</p><p><a href="https://www.spaceaustralia.com/news/omega-centurais-monster-black-hole" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">spaceaustralia.com/news/omega-</span><span class="invisible">centurais-monster-black-hole</span></a></p><p>Well, a team did this & say it might NOT be an IMBH! </p><p><a href="https://arxiv.org/abs/2408.00939" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2408.00939</span><span class="invisible"></span></a></p><p>This is very cool and I hope it evolves into a fun, science battle! </p><p>📷 ESO </p><p><a href="https://aus.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://aus.social/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a> <a href="https://aus.social/tags/SpaceAustralia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SpaceAustralia</span></a> <a href="https://aus.social/tags/BlackHoles" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackHoles</span></a></p>
CosmicRami<p>MOAR YOU SAY?! 📡</p><p>10 new millisecond pulsars found in Terzan 5 Globular Cluster using MeerKAT + Greenbank archival data.</p><p>Highlights include an eccentric, wide-orbit, extremely fast-spinning pulsar in a binary neutron star system.</p><p>Terzan 5, like its bigger cousin Omega Cent, has two main populations of stars. Both clusters might potentially be the former cores of dwarf galaxies that have been chewed up by the Milky Way.</p><p>Terzan 5 now has the largest number of millisecond pulsars of any globular cluster with a whopping 49!</p><p>Curiously, Omega Cen - which is many times more massive than Terzan 5 only has 18 discovered MSPs so far. We think it's because the core of Omega Cen is less densely populated so less chance of dynamic binary interactions to kick start pulsar --> MSP evolution. </p><p>I wonder if Terzan 5 has an IMBH?!?!</p><p><a href="https://www.aanda.org/articles/aa/full_html/2024/06/aa49303-24/aa49303-24.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">aanda.org/articles/aa/full_htm</span><span class="invisible">l/2024/06/aa49303-24/aa49303-24.html</span></a></p><p>📷 ESA/Hubble/ESO VLT/KECK/F. Ferraro</p><p><a href="https://aus.social/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a> <a href="https://aus.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://aus.social/tags/RadioAstronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RadioAstronomy</span></a> <a href="https://aus.social/tags/Pulsars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pulsars</span></a></p>
CosmicRami<p>Astronomers: Omega Centauri - a massive globular cluster orbiting our Galaxy - likely has a 20,000 solar mass black hole in its core.</p><p>The globular cluster, which contains approx. 10 million stars is thought to be the remnant core of a former dwarf galaxy, now cannibalised by the Milky Way. </p><p>These new findings might provide the 'missing link' between stellar-mass black holes and supermassive black holes. </p><p>I had a chat with The University of Queensland Dr Holger Baumgardt who played a direct role in providing the theoretical modelling and investigations into the stellar velocities around the monster black hole. My latest for <a href="https://aus.social/tags/SpaceAustralia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SpaceAustralia</span></a> </p><p><a href="https://www.spaceaustralia.com/news/omega-centurais-monster-black-hole" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">spaceaustralia.com/news/omega-</span><span class="invisible">centurais-monster-black-hole</span></a></p><p>📷 ESO / ESA/Hubble & NASA, M. Häberle (MPIA)</p><p><a href="https://aus.social/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a> <a href="https://aus.social/tags/BlackHoles" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackHoles</span></a> <a href="https://aus.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://aus.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://aus.social/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a></p>
CosmicRami<p>It's been a few months since I've done some proper science writing for <a href="https://aus.social/tags/SpaceAustralia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SpaceAustralia</span></a> (Phd Lyfe) but thought this new paper drop was interesting to write about! </p><p>Australian astronomers have used radio waves to look deep into the heart of the Globular Cluster 47 Tucanae & found an undiscovered radio source.</p><p>The newly found radio source could potentially be the first evidence of an intermediate-mass black hole in the core of a Globular Cluster, or a pulsar that is real close to the centre. </p><p>Both cases = good science labs for us!!!</p><p><a href="https://www.spaceaustralia.com/news/radio-source-heart-47-tuc" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">spaceaustralia.com/news/radio-</span><span class="invisible">source-heart-47-tuc</span></a></p><p>📸 Paduano et al & NASA/ESA Hubble</p><p><a href="https://aus.social/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://aus.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://aus.social/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> <a href="https://aus.social/tags/RadioAstronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RadioAstronomy</span></a> <a href="https://aus.social/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a> <a href="https://aus.social/tags/Pulsars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pulsars</span></a> <a href="https://aus.social/tags/BlackHoles" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackHoles</span></a></p>
CosmicRami<p>Very neat follow-up study of the radio detections of millisecond pulsars in the Omega Centauri core, with CHANDRA, finding correlation between spider pulsar companion mass and X-ray luminosity. </p><p>The redbacks give off more X-rays!</p><p>Omega Cent. is a super interesting Globular Cluster to study with pulsars, as it is so much more massive than other Milky Way GCs. Some folks think it is the remnant component of a former, now cannibalised galaxy - which makes probing the dynamics and binary configurations in the core interesting!</p><p>arxiv.org/abs/2309.13189</p><p>📸 NASA/CXC/SAO/ESA/STScI/AURA/N. Wolk</p><p><a href="https://aus.social/tags/Pulsars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pulsars</span></a> <a href="https://aus.social/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a> <a href="https://aus.social/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://aus.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a></p>
Daniel Fischer<p>Searching for new <a href="https://scicomm.xyz/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a> in M 31 with <a href="https://scicomm.xyz/tags/Gaia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gaia</span></a> EDR3: <a href="https://arxiv.org/abs/2307.09999" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2307.09999</span><span class="invisible"></span></a> -> they " found 50 new globular cluster (GC) candidates around M 31 with Gaia Early Data Release 3 (EDR3), with the help from Pan-STARRS1 DR1 magnitudes and Pan-<a href="https://scicomm.xyz/tags/Andromeda" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Andromeda</span></a> Archaeological Survey (PAndAS) images."</p>
Dr Laura Watkins<p><a href="https://astrodon.social/tags/Introduction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Introduction</span></a> 👋🏻 <a href="https://astrodon.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> 🌟</p><p>I’m Laura. I’m an <a href="https://astrodon.social/tags/ESA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ESA</span></a>-<a href="https://astrodon.social/tags/AURA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AURA</span></a> astronomer at <span class="h-card"><a href="https://astrodon.social/@spacetelescope" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>spacetelescope</span></a></span>.</p><p>I’m one of two deputy heads of the <a href="https://astrodon.social/tags/ScienceMissionOffice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ScienceMissionOffice</span></a>, where I work on <a href="https://astrodon.social/tags/SciencePolicies" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SciencePolicies</span></a> for our observatories and on science infrastructure for our staff.</p><p>For research, I study the <a href="https://astrodon.social/tags/Kinematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Kinematics</span></a> and <a href="https://astrodon.social/tags/Dynamics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Dynamics</span></a> of small stellar systems using <a href="https://astrodon.social/tags/ProperMotions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ProperMotions</span></a> from <a href="https://astrodon.social/tags/HST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HST</span></a>, <a href="https://astrodon.social/tags/Gaia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gaia</span></a>, and soon <a href="https://astrodon.social/tags/JWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JWST</span></a>. I have a particular fondness for <a href="https://astrodon.social/tags/GlobularClusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobularClusters</span></a> but also study <a href="https://astrodon.social/tags/DwarfGalaxies" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DwarfGalaxies</span></a> and <a href="https://astrodon.social/tags/SatelliteSystems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SatelliteSystems</span></a> of larger hosts.</p>
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