370 citations · 1.6k across the 27 of their papers we have counts for
27 papers
MARVEL: A Multi Agent-based Research Validator and Enabler using Large Language Models
Nikhil Mukund, Yifang Luo, Fan Zhang +2
We present MARVEL (https://ligogpt.mit.edu/marvel), a locally deployable, open-source framework for domain-aware question answering and assisted scientific research. It is designed…
Large Language Model-driven Analysis of General Coordinates Network (GCN) Circulars
Vidushi Sharma, Ronit Agarwala, Judith L. Racusin +9
The General Coordinates Network (GCN) is NASA's time-domain and multimessenger alert system. GCN distributes two data products: automated "Notices" and human-generated "Circulars"…
GW-YOLO: Multi-transient segmentation in LIGO using computer vision
Siddharth Soni, Nikhil Mukund, Erik Katsavounidis
Time series data and their time-frequency representations from gravitational-wave interferometers present opportunities for artificial intelligence methods in signal and image proc…
Challenges and Opportunities of Gravitational Wave Searches above 10 kHz
Nancy Aggarwal, Odylio D. Aguiar, Diego Blas +34
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. This white paper outlines the challenges…
GEO600 beam splitter thermal compensation system: new design and commissioning
Séverin Nadji, Holger Wittel, Nikhil Mukund +8
Gravitational waves have revolutionised the field of astronomy by providing scientists with a new way to observe the universe and gain a better understanding of exotic objects like…
Characterization and evasion of backscattered light in the squeezed-light enhanced gravitational wave interferometer GEO 600
Fabio Bergamin, James Lough, Emil Schreiber +15
Squeezed light is injected into the dark port of gravitational wave interferometers, in order to reduce the quantum noise. A fraction of the interferometer output light can reach t…
First demonstration of neural sensing and control in a kilometer-scale gravitational wave observatory
Nikhil Mukund, James Lough, Aparna Bisht +9
Suspended optics in gravitational wave (GW) observatories are susceptible to alignment perturbations, particularly slow drifts over time, due to variations in temperature and seism…
The Virgo O3 run and the impact of the environment
F. Acernese, M. Agathos, A. Ain +486
Sources of geophysical noise (such as wind, sea waves and earthquakes) or of anthropogenic noise impact ground-based gravitational-wave interferometric detectors, causing transient…
Direct limits for scalar field dark matter from a gravitational-wave detector
Sander M. Vermeulen, Philip Relton, Hartmut Grote +20
The nature of dark matter remains unknown to date; several candidate particles are being considered in a dynamically changing research landscape. Scalar field dark matter is a prom…
LIGO Detector Characterization in the Second and Third Observing Runs
D. Davis, J. S. Areeda, B. K. Berger +284
The characterization of the Advanced LIGO detectors in the second and third observing runs has increased the sensitivity of the instruments, allowing for a higher number of detecta…
Challenges and Opportunities of Gravitational Wave Searches at MHz to GHz Frequencies
N. Aggarwal, O. D. Aguiar, A. Bauswein +22
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. This white paper outlines the challenges…
Improving significance of binary black hole mergers in Advanced LIGO data using deep learning : Confirmation of GW151216
Shreejit Jadhav, Nikhil Mukund, Bhooshan Gadre +2
We present a novel Machine Learning (ML) based strategy to search for binary black hole (BBH) mergers in data from ground-based gravitational wave (GW) observatories. This is the f…
Improving the Robustness of the Advanced LIGO Detectors to Earthquakes
Eyal Schwartz, A Pele, J Warner +196
Teleseismic, or distant, earthquakes regularly disrupt the operation of ground--based gravitational wave detectors such as Advanced LIGO. Here, we present \emph{EQ mode}, a new glo…
First demonstration of 6 dB quantum noise reduction in a kilometer scale gravitational wave observatory
James Lough, Emil Schreiber, Fabio Bergamin +14
Photon shot noise, arising from the quantum-mechanical nature of the light, currently limits the sensitivity of all the gravitational wave observatories at frequencies above one ki…
Bilinear noise subtraction at the GEO 600 observatory
Nikhil Mukund, James Lough, Christoph Affeldt +8
Longitudinal control signals used to keep gravitational wave detectors at a stable operating point are often affected by modulations from test mass misalignments leading to an elev…
A machine learning approach for GRB detection in AstroSat CZTI data
Sheelu Abraham, Nikhil Mukund, Ajay Vibhute +6
We present a machine learning (ML) based method for automated detection of Gamma-Ray Burst (GRB) candidate events in the range 60 keV - 250 keV from the AstroSat Cadmium Zinc Tellu…
All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1130
We present results of an all-sky search for continuous gravitational waves (CWs), which can be produced by fast-spinning neutron stars with an asymmetry around their rotation axis,…
Ground motion prediction at gravitational wave observatories using archival seismic data
Nikhil Mukund, Michael Coughlin, Jan Harms +13
Gravitational wave observatories have always been affected by tele-seismic earthquakes leading to a decrease in duty cycle and coincident observation time. In this analysis, we lev…
Effect of induced seismicity on advanced gravitational wave interferometers
Nikhil Mukund, Brian O'Reilly, Surendra Nadh Somala +1
Advanced LIGO and the next generation of ground-based detectors aim to capture many more binary coalescences through improving sensitivity and duty cycle. Earthquakes have always b…
Implications of dedicated seismometer measurements on Newtonian-noise cancellation for Advanced LIGO
M. W. Coughlin, J. Harms, J. Driggers +5
Newtonian gravitational noise from seismic fields will become a limiting noise source at low frequency for second-generation, gravitational-wave detectors. It is planned to use sei…
Improving astrophysical parameter estimation via offline noise subtraction for Advanced LIGO
J. C. Driggers, S. Vitale, A. P. Lundgren +228
The Advanced LIGO detectors have recently completed their second observation run successfully. The run lasted for approximately 10 months and lead to multiple new discoveries. The…
Identification and mitigation of narrow spectral artifacts that degrade searches for persistent gravitational waves in the first two observing runs of Advanced LIGO
P. B. Covas, A. Effler, E. Goetz +260
Searches are under way in Advanced LIGO and Virgo data for persistent gravitational waves from continuous sources, e.g. rapidly rotating galactic neutron stars, and stochastic sour…
Information Retrieval and Recommendation System for Astronomical Observatories
Nikhil Mukund, Saurabh Thakur, Sheelu Abraham +5
We present a machine learning based information retrieval system for astronomical observatories that tries to address user defined queries related to an instrument. In the modern i…
Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors
S. Biscans, J. Warner, R. Mittleman +12
Advanced gravitational-wave detectors such as the Laser Interferometer Gravitational-Wave Observatories (LIGO) require an unprecedented level of isolation from the ground. When in…