Ajit Kumar Mehta

Talks & Presentations

Invited Talks

Data Analysis Challenges in the Deci‑Hz Band and Mitigation Strategies

Beyond LIGO - India: Indian Deci-Hz GW Space Mission,
IISER Kolkata, Kolkata, India (March 2026).

Future GW observations: Detector technology & data analysis

Panelist, The Future of Gravitational-Wave Astronomy,
ICTS, Bengaluru, India (Oct 2025).

Ripples in Spacetime: Ten years of Gravitational Wave Physics and Astrophysics

Ten years of GW astronomy,
IIT Madras (IITM), Chennai, India (Sep 2025).

New binary black hole mergers from the public LIGO–Virgo O3 data

22nd Lomonosov Conference on Elementary Particle Physics,
Moscow State University, Moscow, Russia (Aug 2025) (Virtual).

Probing the upper–stellar-mass gap with LIGO and Virgo

HELIUM25 Workshop (HZDR),
Dresden, Germany (Jul 2025) (Virtual).

IAS-HM pipeline: a brief overview of the framework and the results

Institute for Gravitational and Subatomic Physics, Utrecht University, Netherlands (Jun 2025).

Gravitational waves as a probe for fundamental physics and astronomy

IIT Madras (IITM), Chennai, India (Aug 2024).

Astrophysics of new binary black hole mergers from the public LIGO–Virgo O3 data using IAS search pipeline with higher-order modes

School of Physics & Astronomy, Cardiff University, Cardiff, UK (Jun 2024).

New methods for extracting binary black hole mergers from LIGO–Virgo data

IIT Gandhinagar, India (Mar 2024).

New binary black hole mergers from the public LIGO–Virgo O3 data

TIFR, Mumbai, India (Mar 2024).

Introduction to IAS GW search pipeline

IUCAA, Pune, India (Mar 2024).

Decoding gravitational-wave search pipelines

Indian Institute of Astrophysics (IIA), Bengaluru, India (Nov 2023).

Observing intermediate-mass black holes and the upper–stellar-mass gap with LIGO and Virgo

International Centre for Theoretical Sciences (ICTS), Bengaluru, India (May 2022).

What can we learn by detecting massive BHs via gravitational waves (GWs)?

Sabarmati Seminar Series,
IIT Gandhinagar, India (Jul 2021).

Search for lensing signatures in the gravitational-wave observations from the first-half of LIGO-Virgo's third observing run

LVK Collaboration webinar speaker,
Germany (May 2021).

Gravitational waves: a brief survey

Public Talk,
Birla Institute of Technology, Mesra, India (May 2018).

An introduction to post-Newtonian, numerical relativity and black hole perturbation theory

ICTS, Bengaluru, India (Jan 2018).

Contributed Talks

Significant increase in sensitive volume of a gravitational wave search upon including higher harmonics

American Physical Society (APS) Global Physics Summit,
Anaheim, California, USA (Mar 2025).

Gravitational waves as a probe for fundamental physics and astronomy

Imperial College London, UK (Sep 2024).

A new search pipeline for gravitational waves with higher-order modes using mode-by-mode filtering

Gravitational Wave Physics and Astronomy Workshop (GWPAW), Birmingham, UK (May 2024).

A new efficient approach to searching for gravitational waves with higher-order harmonics

American Physical Society (APS) Meeting,
Sacramento, California, USA (Apr 2024).

Extracting new binary black hole mergers from the public LIGO–Virgo O3 data

IISER Mohali, India (Mar 2024).

Details of gravitational wave searches, and astronomy with binary black hole mergers

Raman Research Institute (RRI), Bengaluru, India (Mar 2024).

Constraining alternative theories of gravity with the inspirals of binary black hole mergers

31st Texas Symposium on Relativistic Astrophysics, Prague, Czech Republic (Sep 2022).

Tests of General Relativity with gravitational-wave observations using a flexible–theory-independent Method

International Conference on General Relativity and Gravitation (GR23),
Beijing, China (Jul 2022) (Virtual).

The detection and parameter estimation challenges of Type-II lensed binary black hole signals

American Physical Society (APS) Meeting (Apr 2022) (Virtual).

Measurement of intermediate mass black hole binaries within the mass gap with upcoming LIGO–Virgo observations

American Physical Society (APS) Meeting (Apr 2021) (Virtual).

Re-analyzing GW190521: is this really a mass gap event?

LIGO–Virgo-KAGRA (LVK) Collaboration Meeting (Mar 2021) (Virtual).

Search for strongly lensed gravitational wave signals from binary black hole mergers

ICTS, Bengaluru, India (Mar 2019).

Including mode-mixing in a higher-multipole model for gravitational waveforms from non-spinning black-hole binaries and test of general relativity using higher multipoles

IAGRG meeting, BITS Pilani – Hyderabad, India (Jan 2019).

A “no-hair” test for binary black holes

Indian Institute of Astrophysics (IIA), Bengaluru, India (Apr 2018).

Checking the consistency between the different polarizations of gravitational waves

Penn State University (PSU), State College, PA, USA (Mar 2018).