Launch Pad Astronomy's video: The Most Massive Black Hole Merger is Impossible

This video is sponsored by Blinkist. The first 100 people to go to https://www.blinkist.com/launchpad are going to get unlimited access for 1 week to try it out. You'll also get 25% off the full membership! The most massive Black Hole merger is 'Impossible', but it happened anyway. Two black holes, with masses 85 and 66 times the Sun, merged into an intermediate mass black hole 142 solar masses designated GW190521. The merger was detected by the LIGO-Virgo gravitational wave collaboration. This black hole merger is considered to be "impossible" because at least one of the two black holes that merged couldn't have formed in a supernova. Instead, they belong in the "pair instability mass gap" of black holes and must have merged in a prior generation in a cluster or perhaps in a quasar's accretion disk. 00:00 Start 05:07 the GW190521 signal 09:11 the black hole mass gap problem 11:38 Solutions to mass gap problem 14:08 Alternative scenarios 16:27 Future detections 17:45 Blinkist 19:40 Patreon thanks 🔔 Subscribe for more: https://www.youtube.com/christianready?sub_confirmation=1 🖖 Share this video with a fellow space traveler: https://youtu.be/rIsGM2xkjHg 🔴 Watch my most recent upload: https://goo.gl/QbRcE2 🚀 Help me improve the channel by joining the community on Patreon https://patreon.com/launchpadastro 🚀 Check out Launch Pad merchandise! https://teespring.com/stores/launchpadastro Disclaimer: Some of these links go to one of my websites and some are affiliate links where I'll earn a small commission if you make a purchase at no additional cost to you. 🧭 References: LIGO Science Release: GW190521: A Binary Black Hole Merger with a Total Mass of 150 Msun (published in Physical Review Letters): https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.101102 Properties and astrophysical implications of the 150 Msun binary black hole merger GW190521: https://iopscience.iop.org/article/10.3847/2041-8213/aba493 GW190521 parameter estimation samples and figure data https://dcc.ligo.org/LIGO-P2000158/public A Candidate Electromagnetic Counterpart to the Binary Black Hole Merger Gravitational Wave Event S190521g. Graham et al 2020: https://arxiv.org/abs/2006.14122 ✅ Let's connect: For business inquiries - chris AT christianready DOT com Twitter - @launchpadastro Instagram - @launchpadastro Facebook - https://www.facebook.com/LaunchPadAstronomy/ Discord - https://discord.gg/yChAuUe 📭 c/o Christian Ready P.O. Box 66 Westminster, MD 21158 United States Earth