{"id":193851,"date":"2026-07-16T04:44:54","date_gmt":"2026-07-16T10:14:54","guid":{"rendered":"https:\/\/newslink360.space\/?p=193851"},"modified":"2026-07-16T04:44:54","modified_gmt":"2026-07-16T10:14:54","slug":"astronomers-decode-black-holes-ringing-to-test-einsteins-theory","status":"publish","type":"post","link":"https:\/\/newslink360.space\/?p=193851","title":{"rendered":"Astronomers decode black holes’ ‘ringing’ to test Einstein’s theory"},"content":{"rendered":"


\n<\/p>\n

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Think of black holes as bells from the cosmos. When they collide and coalesce, the resulting black hole \u201crings\u201d like a bell, with vibrations known as quasinormal modes (gravitational-wave frequencies that decay in amplitude during the \u2018ringdown\u2019 phase).<\/p>\n

These are not just ghostly echoes. They are unambiguous probes of black hole mass and spin<\/a>. They also show whether Einstein\u2019s theory, General Relativity, withstands the rigors of the universe at its most extreme.<\/p>\n

A sweeping international review led by the University of Birmingham, Johns Hopkins University, and the Instituto Superior T\u00e9cnico of Lisbon, together with the Institute of Physics, shows how black hole spectroscopy<\/a>, once a theoretical idea, is now blossoming into experimental science.<\/p>\n

Since the first gravitational-wave detection in 2015, the LIGO-Virgo-KAGRA collaboration has captured hundreds of black hole mergers<\/a>, and dozens of ringdowns have already been measured. So far, every tone agrees with Einstein\u2019s predictions. But the current generation of detectors is limited.<\/p>\n

Even when black holes collide<\/a>, their gravitational fields are so strong that they can\u2019t be accurately recreated in a lab on Earth. Researchers mining LIGO data have found a complex\u2019 ringdown\u2019 hence confirmations of these mergers, including numerous overtones (similar to music harmonics), interactions between vibrational modes, dynamic excitations, lyric, unusual \u201cexceptional points\u201d where even methods combine, and long discharge \u201ctails\u201d, exaggerated in crowded cosmic places.<\/p>\n

These characteristics allow one to use black hole ringdowns as a probe of physics beyond the Standard Model, particularly modifications to the gravity sector, dark matter, and Lorentz-invariance violations in regions near the horizon. In bringing together more than 70 experts from around the world, the review is an unprecedented assessment of this emerging field.<\/p>\n

And future observatories, such as Europe\u2019s Einstein Telescope, the US Cosmic Explorer, and the upcoming LISA mission in space, are sure to revolutionize the discipline. An expected high merger rate with frequent and multi-mode excitations will enable them to start probing features beyond the standard model: alternative inflationary (beyond-Einstein) gravity, DM interactions, and quantum mechanics near horizons.<\/p>\n

As review co-lead Dr. Gregorio Carullo put it: \u201cBy listening to the ringing of newly formed black holes<\/a>, we are turning gravitational waves into a tool for exploring some of the deepest questions in physics, from the nature of gravity itself to the possibility of discovering entirely new forms of matter and energy.\u201d<\/em><\/p>\n

Black holes\u00a0ring: Physics to pay close attention<\/a><\/p>\n

And looking ahead: \u201cAs gravitational-wave detectors become more sensitive, black hole spectroscopy promises to transform black holes from mysterious objects into precision laboratories to study challenging astrophysical processes and uncover new fundamental physics phenomena.\u201d<\/em><\/p>\n

Journal Reference:<\/strong><\/p>\n

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  1. Emanuele Berti, Vitor Cardoso, Gregorio Carullo*, Jahed Abedi, Niayesh Afshordi, Simone Albanesi, Vishal Baibhav, Swetha Bhagwat, Jos\u00e9 Luis Bl\u00e1zquez-Salcedo, B\u00e9atrice Bonga et al. Black hole spectroscopy: from theory to experiment. Classical and Quantum Gravity. DOI 10.1088\/1361-6382\/ae59e2<\/a><\/li>\n<\/ol>\n<\/div>\n


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    Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Think of black holes as bells from the cosmos. When they collide and coalesce, the resulting black hole \u201crings\u201d like a bell, with vibrations known as quasinormal modes (gravitational-wave frequencies that decay in amplitude during the \u2018ringdown\u2019 phase). These are not just ghostly echoes. They are unambiguous probes of black hole mass and spin. They…<\/p>\n","protected":false},"author":1,"featured_media":193852,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[7],"tags":[],"class_list":["post-193851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-national-news"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/newslink360.space\/wp-content\/uploads\/2026\/07\/GW250114.webp","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":193364,"url":"https:\/\/newslink360.space\/?p=193364","url_meta":{"origin":193851,"position":0},"title":"Second-Hand Black Holes May Be Hiding Across the Universe. Researchers Now Have a Way to Spot Them","author":"Ajay Kumar Verma","date":"July 14, 2026","format":false,"excerpt":"A new study suggests many black holes roaming the cosmos are actually made from other black holes. Credit: NASA. A new analysis of gravitational-wave detections suggests that roughly 14% of merging binary black holes belong to a second generation. In other words, at least one member of these systems may\u2026","rel":"","context":"In "National News"","block_context":{"text":"National News","link":"https:\/\/newslink360.space\/?cat=7"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/07\/BlackHoles.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/07\/BlackHoles.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/07\/BlackHoles.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/07\/BlackHoles.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/07\/BlackHoles.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/07\/BlackHoles.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":197935,"url":"https:\/\/newslink360.space\/?p=197935","url_meta":{"origin":193851,"position":1},"title":"Indian astronomers capture rare ‘Blue Straggler’ Star in the act of formation","author":"Ajay Kumar Verma","date":"July 27, 2026","format":false,"excerpt":"Indian astronomers, working with international collaborators, have made a rare breakthrough in stellar astronomy by directly observing a Blue Straggler Star (BSS) in the process of formation, providing some of the strongest evidence yet for how these mysterious stars are created. 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