10 – 12 JUNE, 2026

Quasinormal modes — the characteristic “ringdown” oscillations of black holes — were first discovered by Prof. C. V. Vishveshwara in the early 1970s and later observed in the landmark 2015 LIGO detection of gravitational waves. Today, they form the foundation of black hole spectroscopy, enabling precision tests of general relativity and sensitive probes of new physics. With next-generation gravitational-wave observatories on the horizon, this conference brings together the community to review recent advances, explore future directions, and honor Vishveshwara’s pioneering legacy.

INVITED SPEAKERS

P. AJITH ICTS-TIFR

NILS ANDERSSON University of Southampton

ABHAY ASHTEKAR Pennsylvania State University

SWETHA BHAGWAT University of Birmingham

SAYAN CHAKRABARTI IIT Guwahati

JOSÉ EDELSTEIN University of Santiago de Compostela

LEONARDO GUALTIERI University of Pisa

SCOTT A. HUGHES MIT

JOSÉ LUIS JARAMILLO Institut de Mathématiques de Bourgogne

SHILPA KASTHA Saha Institute of Nuclear Physics

SANVED KOLEKAR Indian Institute of Astrophysics

BADRI KRISHNAN Radboud University

ANDREA MASELLI Gran Sasso Science Institute

NARITAKA OSHITA Kindai University

B. SATHYAPRAKASH Pennsylvania State University

THOMAS SOTIRIOU University of Nottingham

JAN STEINHOFF Max Planck Institute for Gravitational Physics

VARDHARAJAN SUNEETA IISER Pune

AMITABH VIRMANI Chennai Mathematical Institute

SMITHA VISHVESHWARA University of Illinois Urbana-Champaign

SCIENTIFIC ORGANIZERS

KARTIK PRABHU RRI

SUMANTA CHAKRABORTY IACS

SUDIPTA SARKAR IIT Gandhinagar