A5071997833- Pulsars and Gravitational Waves Research
- Gamma-ray bursts and supernovae
- Geophysics and Gravity Measurements
- Astrophysics and Cosmic Phenomena
- Radio Astronomy Observations and Technology
- Astrophysical Phenomena and Observations
- Seismic Waves and Analysis
- Magnetic confinement fusion research
- High-pressure geophysics and materials
- Stellar, planetary, and galactic studies
- Neutrino Physics Research
- Geophysics and Sensor Technology
- Cosmology and Gravitation Theories
Center for Astrophysics Harvard & Smithsonian
2019-2023
The NSF AI Institute for Artificial Intelligence and Fundamental Interactions
2023
Embry–Riddle Aeronautical University
2016-2022
Columbia University
2019
Abstract The Lunar Gravitational-wave Antenna (LGWA) is a proposed array of next-generation inertial sensors to monitor the response Moon gravitational waves (GWs). Given size and expected noise produced by lunar seismic background, LGWA would be able observe GWs from about 1 mHz Hz. This make missing link between space-borne detectors like LISA with peak sensitivities around few millihertz future terrestrial Einstein Telescope or Cosmic Explorer. In this article, we provide first...
The next galactic core-collapse supernova (CCSN) has already exploded, and its electromagnetic (EM) waves, neutrinos, gravitational waves (GWs) may arrive at any moment. We present an extensive study on the potential sensitivity of prospective detection scenarios for GWs from CCSNe within 5 Mpc, using realistic noise predicted Advanced LIGO Virgo detectors 2015, 2017, 2019. quantify detectability Milky Way Large Magellanic Cloud, which there will be observed neutrino burst. also consider...
We present predictions for the gravitational-wave (GW) emission of three-dimensional supernova (SN) simulations performed a 15 solar-mass progenitor with Prometheus-Vertex code using energy-dependent, three-flavor neutrino transport. The adopted from stellar evolution calculations including magnetic fields had fairly low specific angular momentum (j_Fe <~ 10^{15} cm^2/s) in iron core (central velocity ~0.2 rad/s), which we compared to without rotation and artificially enhanced 2*10^{16}...
The Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo Collaborations have now detected all three classes of compact binary mergers: black hole (BBH), neutron star (BNS), star-black (NSBH). For coalescences involving stars, the simultaneous observation gravitational electromagnetic radiation produced by an event, has broader potential to enhance our understanding these events, also probe equation state (EOS) dense matter. However, follow-up wave (GW) events requires rapid...
One of the key challenges real-time detection and parameter estimation gravitational waves from compact binary mergers is computational cost conventional matched-filtering Bayesian inference approaches. In particular, application these methods to full signal space available gravitational-wave detectors, and/or computationally prohibitive. On other hand, rapid are critical for prompt follow-up electromagnetic astro-particle counterparts accompanying important transients, such as neutron-star...
We study the properties of gravitational-wave (GW) emission between ${10}^{\ensuremath{-}5}$ and 50 Hz (which we refer to as low-frequency emission) from core-collapse supernovae, in context studying such signals laser interferometric data well performing multimessenger astronomy. pay particular attention GW linear memory, which is when signal amplitude does not return zero after burst. Based on long-term simulation a supernova solar-metallicity star with zero-age main sequence mass 15 solar...
Following the milestone of detecting gravitational waves (GWs) from merging compact binaries, next significant watershed moment in GW astronomy lies GWs core-collapse supernovae (CCSNe). In this Letter, I describe possibility linear memory -- a phenomenon resulting combination aspherical matter ejection and anisotropic neutrino emission during stellar collapse using detectors on Moon. This would grant unprecedented access to sub-Hz/Hz frequency range, which is inaccessible current future...
The advent of sensitive gravitational wave (GW) detectors, coupled with wide-field, high cadence optical time-domain surveys, raises the possibility first joint GW-electromagnetic (EM) detections core-collapse supernovae (CCSNe). For targeted searches GWs from CCSNe observations can be used to increase sensitivity search by restricting relevant time interval, defined here as GW window (GSW). extent GSW is a critical factor in determining achievable false alarm probability (FAP) for triggered...
We demonstrate how a morphological veto involving Bayesian statistics can improve the receiver-operating characteristic (ROC) curves of current search for core-collapse supernovae (CCSNe) as implemented by coherent Waveburst (cWB) algorithm. Examples two implementations BayesWave (BW), one that makes no assumption polarization state gravitational wave (GW) and uses same elliptical settings adopted in previous usages Binary systems are provided on set waveforms currently first second Advanced...
We show that for detections of gravitational-wave transients, constraints can be given on physical parameters the source without using any specific astrophysical models. Relying only fundamental principles general relativity, we set upper limits size, mass, and distance solely from characteristics observed waveform. If is known independent (e.g. electromagnetic) observations, also lower mass size. As a demonstration, tested these binary black hole signals by LIGO Virgo detectors during their...
The Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo Collaborations have now detected all three classes of compact binary mergers: black hole (BBH), neutron star (BNS), star-black (NSBH). For coalescences involving stars, the simultaneous observation gravitational electromagnetic radiation produced by an event, has broader potential to enhance our understanding these events, also probe equation state (EOS) dense matter. However, follow-up wave (GW) events requires rapid...
Type-I Superluminous Supernovae (SLSNe) are an exotic class of core-collapse SN (CCSN) that can be up to 100 times brighter and more slowly-evolving than normal CCSNe. SLSNe represent the end-stages most massive stripped stars, thought powered by spin-down energy a millisecond magnetar. Studying them measuring their physical parameters help us better understand stellar mass-loss, evolution, explosions. Moreover, thanks high luminosities, seen greater distances, allowing explore how physics...