A5085524673- Astronomy and Astrophysical Research
- Galaxies: Formation, Evolution, Phenomena
- Laser-induced spectroscopy and plasma
- Laser-Plasma Interactions and Diagnostics
- High-pressure geophysics and materials
- Astro and Planetary Science
- Atomic and Molecular Physics
- Laser-Matter Interactions and Applications
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Blood groups and transfusion
- Particle Dynamics in Fluid Flows
- Cosmology and Gravitation Theories
- Stellar, planetary, and galactic studies
- Magnetic confinement fusion research
- Astrophysical Phenomena and Observations
- Immune cells in cancer
- Computational Physics and Python Applications
- Relativity and Gravitational Theory
- Advanced Fiber Laser Technologies
- Cell Image Analysis Techniques
- Experimental and Theoretical Physics Studies
- Photocathodes and Microchannel Plates
- Remote Sensing in Agriculture
- Geomagnetism and Paleomagnetism Studies
University of Washington
2014-2021
City University of Seattle
2021
Recursion (United States)
2020
Behavioral Tech Research, Inc.
2016
University of British Columbia
2010-2015
Science World at Telus World of Science
2015
British Columbia Children's Hospital
2013
University of Nevada, Reno
2007-2009
United States Naval Research Laboratory
1985-1986
ABSTRACT Development of accurate disease models and discovery immune-modulating drugs is challenged by the immune system’s highly interconnected context-dependent nature. Here we apply deep-learning-driven analysis cellular morphology to develop a scalable “phenomics” platform demonstrate its ability identify dose-dependent, high-dimensional relationships among between immunomodulators, toxins, pathogens, genetic perturbations, small large molecules at scale. High-throughput screening on...
Gravitational lensing magnification is measured with a significance of 9.7σ on large sample galaxy clusters in the Canada–France–Hawaii Telescope Lensing Survey (CFHTLenS). This survey covers ∼154 deg2 and contains over 18 000 cluster candidates at redshifts 0.2 ≤ z 0.9, detected using 3D-Matched Filter cluster-finder Milkeraitis et al. We fit composite-NFW models to ensemble, accounting for miscentring, source-lens redshift overlap, as well nearby structure (the two-halo term), recover mass...
We report on the detection of gravitational lensing magnification by a population galaxy groups, at significance level 4.9σ. Using X-ray-selected groups in COSMOS 1.64 deg2 field, and high-redshift Lyman break galaxies as sources, we measure lensing-induced angular cross-correlation between samples. After satisfying consistency checks that demonstrate have indeed detected signal, are not suffering from contamination physical overlap samples, proceed to implement an optimally weighted...
We present the cluster mass-richness scaling relation calibrated by a weak lensing analysis of >18000 galaxy candidates in Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS). Detected using 3D-Matched-Filter cluster-finder Milkeraitis et al., these span wide range masses, from small group scale up to $\sim10^{15} M_{\odot}$, and redshifts 0.2 $\lesssim z\lesssim$ 0.9. The total significance stacked shear measurement amounts 54$\sigma$. compare masses determined magnification, finding...
We propose a new approach for measuring the mass profile and shape of groups clusters galaxies, which uses lensing magnification distant background galaxies. The main advantage is that, unlike shear, it relies on accurate photometric redshifts only not galaxy shapes, thus enabling study dark matter distribution with unresolved source present feasibility study, using real population z > 2.5 Lyman Break Galaxies as where, similar to galaxy-galaxy lensing, foreground lenses are stacked in order...
Abstract We measured stacked weak lensing cluster masses for a sample of 1323 galaxy clusters detected by the RedGOLD algorithm in Canada–France–Hawaii Telescope Legacy Survey W1 and Next Generation Virgo Cluster at <?CDATA $0.2\lt z\lt 0.5$?> , optical richness range $10\lt \lambda \lt 70$?> . This is most comprehensive study $\sim 100 \% $?> complete 80 pure catalog this redshift range. test different mass models, our final model includes basic halo with Navarro Frenk White profile, as...
We present "Tracklet-less Heliocentric Orbit Recovery" (THOR), an algorithm for linking of observations Solar System objects across multiple epochs that does not require intra-night tracklets or a predefined cadence within search window. By sparsely covering regions interest in the phase space with "test orbits", transforming nearby over few nights into co-rotating frame test orbit at each epoch, and then performing generalized Hough transform on transformed detections followed by...
Dark matter makes up most of the in universe but very little a standard introductory physics curriculum. Here we present our construction and use spandex sheet-style gravity simulator to qualitatively demonstrate two aspects modern related dark matter. First, describe an activity which students explore dependence orbital velocities on central mass system, demonstration how scientists first discovered Second, discuss as visualization gravitational lensing, current astronomical technique for...
We describe a new open source package for calculating properties of galaxy clusters, including NFW halo profiles with and without the effects cluster miscentering. This pure-Python package, cluster-lensing, provides well-documented easy-to-use classes functions scaling relations, mass-richness mass-concentration relations from literature, as well surface mass density $\Sigma(R)$ differential $\Delta\Sigma(R)$ profiles, probed by weak lensing magnification shear. Galaxy miscentering is...
A 500-J, 2–6-ns, Nd laser was focused to a 100-μm-wide line on thin (375–1500 Å) copper film of 4–23 mm length, supported by 1500-Å thick Formvar substrate. Space-resolved 8–16-Å wavelength x-ray spectroscopy and pinhole photography were utilized. The main spectral features include intense neon-like Cu xx lines, somewhat less xix xxi lines. Two types axial structure are observed, one characterized finely (≲100 μm) corrugated structure, the other scale irregular nonuniformity. former could...
Several experiments at the Nevada Terawatt Facility (NTF) study interaction of laser-created plasmas with large external magnetic fields. Examples include a ldquosolar windrdquo experiment that studies development shock when an ablation plasma flow interacts strong field, and isochoric heating experiment, in which effect confining field on target will be investigated. The can created one our two multiterawatt laser systems, namely, Tomcat (up to 10 TW) Leopard 100 TW). Analyzing requires...
A thin layer of frozen neon is condensed onto a cryogenically cooled substrate for use in generating plasma x-ray laser research. The freezing process and quasiequilibrium state the are discussed. Spectral purity formed by irradiation has been demonstrated. Control thinness possible.
Summary form only given. Several experiments at NTF study the interaction of laser-created plasmas with large external magnetic fields. Examples include a "solar wind" experiment that studies development shock when an ablation plasma flow interacts strong field, and isochoric heating experiment, in which effect confining field on target will be investigated. The can created one our two multi-terrawatt laser systems, Tomcat (up to 10 TW), Leopard 100 TW). absorption characterized by analyzing...
Several experiments at the Nevada Terawatt Facility (NTF) study interaction of laser-created plasmas with large external magnetic fields. Examples include a "solar wind" experiment that studies development shock when an ablation plasma flow interacts strong field, and isochoric heating experiment, in which effect confining field on target will be investigated. The can created one our two multi-terawatt laser systems, Tomcat (up to 10TW) Leopard 100TW). Analyzing requires thorough...