Tootfinder

The very high X-ray polarization of accreting black hole IGR J17091−3624 in the hard state: #BlackHole’ Measurements Challenge Current Theories: https://www.nasa.gov/missions/ixpe/nasa-ixpes-heartbeat-black-hole-measurements-challenge-current-theories/

The ∞ Galaxy - A Candidate Direct-collapse Supermassive Black Hole between Two Massive, Ringed Nuclei: #BlackHole: https://keckobservatory.org/infinity-galaxy/ / https://webbtelescope.org/contents/early-highlights/nasas-webb-finds-possible-direct-collapse-black-hole

GW231123 - a Binary Black Hole Merger with Total Mass 190-265 M_Sun: #BlackHole binary detected through gravitational waves: https://ligo.org/science-summaries/gw231123/ -> event: https://ligo.org/detections/gw231123 / conference slides: https://scicomm.xyz/@LIGO/114852330415127843 / Gravitational waves from massive black holes challenge current astrophysical models: https://ligo.org/wp-content/uploads/2025/07/Press-release-for-GW231123-discovery-paper-final.pdf

Unveiling a 36 billion solar mass #BlackHole at the centre of the Cosmic Horseshoe gravitational lens: https://academic.oup.com/mnras/article/541/4/2853/8213862?login=false -> At 36 billion solar masses, is the heaviest black hole too massive? https://bigthink.com/starts-with-a-bang/36-billion-solar-masses-heaviest-black-hole/

Path to an exact WKB analysis of black hole quasinormal modes: #BlackHole vibes: https://www.kyoto-u.ac.jp/en/research-news/2025-07-31