Shane L. Larson
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View article: Communicating the gravitational-wave discoveries of the LIGO-Virgo-KAGRA Collaboration
Communicating the gravitational-wave discoveries of the LIGO-Virgo-KAGRA Collaboration Open
The LIGO-Virgo-KAGRA (LVK) Collaboration has made breakthrough discoveries in gravitational-wave astronomy, a new field that provides a different means of observing our Universe. Gravitational-wave discoveries are possible thanks to the wo…
View article: Simulating the Galactic population of axion clouds around stellar-origin black holes: Gravitational wave signals in the 10-100 kHz band
Simulating the Galactic population of axion clouds around stellar-origin black holes: Gravitational wave signals in the 10-100 kHz band Open
Ultralight scalar fields can experience runaway `superradiant' amplification near spinning black holes, resulting in a macroscopic `axion cloud' which slowly dissipates via continuous monochromatic gravitational waves. For a particular ran…
View article: Communicating the gravitational-wave discoveries of the LIGO-Virgo-KAGRA Collaboration
Communicating the gravitational-wave discoveries of the LIGO-Virgo-KAGRA Collaboration Open
The LIGO-Virgo-KAGRA (LVK) Collaboration has made breakthrough discoveries in gravitational-wave astronomy, a new field that provides a different means of observing our Universe. Gravitational-wave discoveries are possible thanks to the wo…
View article: Understanding Binary Systems—a Comparison between COSMIC and MESA
Understanding Binary Systems—a Comparison between COSMIC and MESA Open
We compare the evolution of binary systems evolved in the MESA stellar evolution code to those in the COSMIC population synthesis code. Our aim is to convey the robustness of the equations that model binary evolution in the COSMIC code, pa…
View article: Understanding Binary Systems - a Comparison between COSMIC and MESA
Understanding Binary Systems - a Comparison between COSMIC and MESA Open
We compare the evolution of binary systems evolved in the MESA stellar evolution code to those in the COSMIC population synthesis code. Our aim is to convey the robustness of the equations that model binary evolution in the COSMIC code, pa…
View article: Understanding Binary Systems -- a Comparison between COSMIC and MESA
Understanding Binary Systems -- a Comparison between COSMIC and MESA Open
We compare the evolution of binary systems evolved in the MESA stellar evolution code to those in the COSMIC population synthesis code. Our aim is to convey the robustness of the equations that model binary evolution in the COSMIC code, pa…
View article: Systematic Approach to Establishing Criticality Biases
Systematic Approach to Establishing Criticality Biases Open
A systematic approach has been developed to determine benchmark biases and apply those biases to code results to meet the requirements of DOE Order 5480.24 regarding documenting criticality safety margins. Previously, validation of the cod…
View article: Understanding exotic black hole orbits using effective potentials
Understanding exotic black hole orbits using effective potentials Open
Gravitational wave astronomy is an emerging observational discipline that expands the astrophysical messengers astronomers can use to probe cosmic phenomena. The gravitational waveform from a source encodes the astrophysical properties and…
View article: Astrophysics with the Laser Interferometer Space Antenna
Astrophysics with the Laser Interferometer Space Antenna Open
The Laser Interferometer Space Antenna (LISA) will be a transformative experiment for gravitational wave astronomy, and, as such, it will offer unique opportunities to address many key astrophysical questions in a completely novel way. The…
View article: Optical Trapping of High-Aspect-Ratio NaYF Hexagonal Prisms for kHz-MHz Gravitational Wave Detectors
Optical Trapping of High-Aspect-Ratio NaYF Hexagonal Prisms for kHz-MHz Gravitational Wave Detectors Open
We present experimental results on optical trapping of Yb-doped $β-$NaYF sub-wavelength-thickness high-aspect-ratio hexagonal prisms with a micron-scale radius. The prisms are trapped in vacuum using an optical standing wave, oriented with…
View article: Astrophysics with the Laser Interferometer Space Antenna
Astrophysics with the Laser Interferometer Space Antenna Open
The Laser Interferometer Space Antenna (LISA) will be a transformative experiment for gravitational wave astronomy, and, as such, it will offer unique opportunities to address many key astrophysical questions in a completely novel way. The…
View article: GPU-accelerated periodic source identification in large-scale surveys: measuring <i>P</i> and <i>P</i>
GPU-accelerated periodic source identification in large-scale surveys: measuring <i>P</i> and <i>P</i> Open
Many inspiraling and merging stellar remnants emit both gravitational and electromagnetic radiation as they orbit or collide. These gravitational wave events together with their associated electromagnetic counterparts provide insight about…
View article: Getting Ready for LISA: The Data, Support and Preparation Needed to Maximize US Participation in Space-Based Gravitational Wave Science
Getting Ready for LISA: The Data, Support and Preparation Needed to Maximize US Participation in Space-Based Gravitational Wave Science Open
The NASA LISA Study Team was tasked to study how NASA might support US scientists to participate and maximize the science return from the Laser Interferometer Space Antenna (LISA) mission. LISA is gravitational wave observatory led by ESA …
View article: Searching for new physics with a levitated-sensor-based gravitational-wave detector
Searching for new physics with a levitated-sensor-based gravitational-wave detector Open
The Levitated Sensor Detector (LSD) is a compact resonant gravitational-wave (GW) detector based on optically trapped dielectric particles that is under construction. The LSD sensitivity has more favorable frequency scaling at high frequen…
View article: Constraining Galactic Structure with the LISA White Dwarf Foreground
Constraining Galactic Structure with the LISA White Dwarf Foreground Open
White dwarfs (WDs) comprise 95% of all stellar remnants, and are thus an excellent tracer of old stellar populations in the Milky Way. Current and planned telescopes are not able to directly probe the WD population in its entirety due to i…
View article: GPU-accelerated massive black hole binary parameter estimation with LISA
GPU-accelerated massive black hole binary parameter estimation with LISA Open
The Laser Interferometer Space Antenna (LISA) is slated for launch in the\nearly 2030s. A main target of the mission is massive black hole binaries that\nhave an expected detection rate of $\\sim20$ yr$^{-1}$. We present a parameter\nestim…
View article: Data for Breivik et al. 2020 COSMIC Release
Data for Breivik et al. 2020 COSMIC Release Open
Contains all necessary data to reproduce all plots of Breivik et al. 2020 using version 3.3 of COSMIC (Compact Object Synthesis and Monte Carlo Investigation Code)
View article: Data for Breivik et al. 2020 COSMIC Release
Data for Breivik et al. 2020 COSMIC Release Open
Contains all necessary data to reproduce all plots of Breivik et al. 2020 using version 3.3 of COSMIC (Compact Object Synthesis and Monte Carlo Investigation Code)
View article: Getting Ready for LISA: The Data, Support and Preparation Needed to Maximize US Participation in Space-Based Gravitational Wave Science
Getting Ready for LISA: The Data, Support and Preparation Needed to Maximize US Participation in Space-Based Gravitational Wave Science Open
The NASA LISA Study Team was tasked to study how NASA might support US scientists to participate and maximize the science return from the Laser Interferometer Space Antenna (LISA) mission. LISA is gravitational wave observatory led by ESA …
View article: Eclipses of continuous gravitational waves as a probe of stellar structure
Eclipses of continuous gravitational waves as a probe of stellar structure Open
Although gravitational waves only interact weakly with matter, their propagation is affected by a gravitational potential. If a gravitational wave source is eclipsed by a star, measuring these perturbations provides a way to directly measu…
View article: Building A Field: The Future of Astronomy with Gravitational Waves, A\n State of The Profession Consideration for Astro2020
Building A Field: The Future of Astronomy with Gravitational Waves, A\n State of The Profession Consideration for Astro2020 Open
Harnessing the sheer discovery potential of gravitational wave astronomy will\nrequire bold, deliberate, and sustained efforts to train and develop the\nrequisite workforce. The next decade requires a strategic plan to build -- from\nthe g…
View article: Building A Field: The Future of Astronomy with Gravitational Waves, A State of The Profession Consideration for Astro2020
Building A Field: The Future of Astronomy with Gravitational Waves, A State of The Profession Consideration for Astro2020 Open
Harnessing the sheer discovery potential of gravitational wave astronomy will require bold, deliberate, and sustained efforts to train and develop the requisite workforce. The next decade requires a strategic plan to build -- from the grou…
View article: Spurious Acceleration Noise on the LISA Spacecraft due to Solar Activity
Spurious Acceleration Noise on the LISA Spacecraft due to Solar Activity Open
One source of noise for the Laser Interferometer Space Antenna (LISA) will be time-varying changes of the space environment in the form of solar wind particles and photon pressure from fluctuating solar irradiance. The approximate magnitud…
View article: Teaching citizen scientists to categorize glitches using machine learning guided training
Teaching citizen scientists to categorize glitches using machine learning guided training Open
Existing literature points to scaffolded training as an effective yet resource-intensive approach to help newcomers learn and stay motivated. Experts need to select relevant learning materials and continuously assess learners' progress. Pe…
View article: Probing Massive Black Hole Binary Populations with LISA
Probing Massive Black Hole Binary Populations with LISA Open
ESA and NASA are moving forward with plans to launch LISA around 2034. With data from the Illustris cosmological simulation, we provide analysis of LISA detection rates accompanied by characterization of the merging massive black hole popu…
View article: The Laser Interferometer Space Antenna: Unveiling the Millihertz Gravitational Wave Sky
The Laser Interferometer Space Antenna: Unveiling the Millihertz Gravitational Wave Sky Open
The first terrestrial gravitational wave interferometers have dramatically underscored the scientific value of observing the Universe through an entirely different window, and of folding this new channel of information with traditional ast…
View article: Space Based Gravitational Wave Astronomy Beyond LISA
Space Based Gravitational Wave Astronomy Beyond LISA Open
The Laser Interferometer Space Antenna (LISA) will open three decades of gravitational wave (GW) spectrum between 0.1 and 100 mHz, the mHz band. This band is expected to be the richest part of the GW spectrum, in types of sources, numbers …
View article: The Laser Interferometer Space Antenna: Unveiling the Millihertz Gravitational Wave Sky
The Laser Interferometer Space Antenna: Unveiling the Millihertz Gravitational Wave Sky Open
The first terrestrial gravitational wave interferometers have dramatically underscored the scientific value of observing the Universe through an entirely different window, and of folding this new channel of information with traditional ast…
View article: The Discovery Potential of Space-Based Gravitational Wave Astronomy
The Discovery Potential of Space-Based Gravitational Wave Astronomy Open
A space-based interferometer operating in the previously unexplored mHz gravitational band has tremendous discovery potential. If history is any guide, the opening of a new spectral band will lead to the discovery of entirely new sources a…