A5042370668- Pulsars and Gravitational Waves Research
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- High-pressure geophysics and materials
- Geophysics and Gravity Measurements
- Cosmology and Gravitation Theories
- Geophysics and Sensor Technology
- Stellar, planetary, and galactic studies
- Magnetic confinement fusion research
- Advanced Electrical Measurement Techniques
- Seismology and Earthquake Studies
- Health and Medical Research Impacts
- Science, Research, and Medicine
- Dark Matter and Cosmic Phenomena
- Innovations in Educational Methods
- Seismic Imaging and Inversion Techniques
- Space exploration and regulation
- Radio Astronomy Observations and Technology
- earthquake and tectonic studies
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Radio, Podcasts, and Digital Media
- Computational Physics and Python Applications
University of Mississippi
2020-2024
Clemson University
2022
Indian Institute of Science Education and Research Pune
2019
Two important parameters inferred from the gravitational wave signals of binaries precessing black holes are spin tilt angles, i.e., angles at which holes' axes inclined with respect to binary's orbital angular momentum. The LIGO-Virgo parameter estimation analyses provide tilts a fiducial reference frequency, often lowest frequency used in data analysis. However, most astrophysically interesting quantities when binary was formed, can be significantly different those for strongly binaries....
Abstract We present the design and performance of GROWTH-India telescope, a 0.7 m robotic telescope dedicated to time-domain astronomy. The is equipped with 4k back-illuminated camera that gives 0.°82 field view sensitivity g′ ∼ 20.5 in 5 minute exposures. Custom software handles observatory operations: attaining high on-sky observing efficiencies (≳80%) allowing rapid response targets opportunity. data processing pipelines are capable performing point-spread function photometry as well...
The spin orientations of spinning binary black hole (BBH) mergers detected by ground-based gravitational wave detectors such as LIGO and Virgo can provide important clues about the formation binaries. However, these tilts, i.e., angles between vector each binary's orbital angular momentum vector, change due to precessional effects holes evolve from a large separation their merger. tilts inferred at frequency in sensitive band comparing signal with theoretical waveforms thus be significantly...
Abstract Instrumental and environmental transient noise bursts in gravitational-wave (GW) detectors, or glitches, may impair astrophysical observations by adversely affecting the sky localization parameter estimation of GW signals. Denoising detector data is especially relevant during low-latency operations because electromagnetic follow-up candidate detections requires accurate, rapid inference sources. NNETFIX a machine learning, artificial neural network-based algorithm designed to...
The spin orientations of spinning binary black hole (BBH) mergers detected by ground-based gravitational wave detectors such as LIGO and Virgo can provide important clues about the formation binaries. However, these tilts, i.e., angles between vector each binary's orbital angular momentum vector, change due to precessional effects holes evolve from a large separation their merger. tilts inferred at frequency in sensitive band comparing signal with theoretical waveforms thus be significantly...
Random projection (RP) is a powerful dimension reduction technique widely used in the analysis of high dimensional data. We demonstrate how this can be to improve computational efficiency gravitational wave searches from compact binaries neutron stars or black holes. Improvements low-frequency response and bandwidth due detector hardware upgrades pose data challenge advanced LIGO era as they result increased redundancy template databases longer templates higher number signal cycles in-band....
Podcasts offer a unique tool in making science learning informative, engaging, and entertaining. They provide an excellent way to incorporate storytelling instruction. can be accessed easily free of cost on any internet-enabled device. Recording podcasts is also easy inexpensive, them useful record lesson summaries other content for revision. This article outlines different ways using the teaching process. To support informal learning, typically cover cross-disciplinary issues that are...
The LIGO-Virgo gravitational wave detectors have confidently observed 4 events involving neutron stars: two binary star (BNS) mergers (GW170817 and GW190425), star-black hole (GW200105 GW200115). However, our theoretical understanding of the remnant properties such systems is incomplete due to complexities related modeling matter effects very high computational cost corresponding numerical relativity simulations. An important property recoil velocity, which imparted onto anisotropic emission...
We present, for the first time, recoil velocity estimates binary neutron star mergers using data from numerical relativity simulations. find that merger remnants can have of order a few tens km/s and as high $150$ in our dataset. These recoils are attained due to equivalent contributions anisotropic gravitational wave emission well asymmetric ejection dynamical matter during merger. provide fits net its ejecta component function amount ejected matter, which may be useful when constraints on...
We present, for the first time, recoil velocity estimates binary neutron star mergers using data from numerical relativity simulations. find that merger remnants can have of order a few tens kilometers per second and as high 150 in our dataset. These recoils are attained due to equivalent contributions anisotropic gravitational wave emission well asymmetric ejection dynamical matter during merger. provide fits net its ejecta component function amount ejected matter, which may be useful when...
The LIGO-Virgo gravitational wave detectors have confidently observed 4 events involving neutron stars: two binary star (BNS) mergers (GW170817 and GW190425), star-black hole (GW200105 GW200115). However, our theoretical understanding of the remnant properties such systems is incomplete due to complexities related modeling matter effects very high computational cost corresponding numerical relativity simulations. An important property recoil velocity, which imparted onto anisotropic emission...
Instrumental and environmental transient noise bursts in gravitational-wave detectors, or glitches, may impair astrophysical observations by adversely affecting the sky localization parameter estimation of signals. Denoising detector data is especially relevant during low-latency operations because electromagnetic follow-up candidate detections requires accurate, rapid inference sources. NNETFIX a machine learning-based algorithm designed to remove glitches detected coincidence with uses...