A5067948929- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Calibration and Measurement Techniques
- CCD and CMOS Imaging Sensors
- Astronomical Observations and Instrumentation
- Infrared Target Detection Methodologies
- Adaptive optics and wavefront sensing
- Gamma-ray bursts and supernovae
- Advanced Measurement and Detection Methods
- Advanced Semiconductor Detectors and Materials
- Astrophysics and Cosmic Phenomena
- Astro and Planetary Science
- Seismic Imaging and Inversion Techniques
- Spectroscopy and Laser Applications
- Web Data Mining and Analysis
- Distributed and Parallel Computing Systems
- Advanced Image Processing Techniques
- Library Science and Information Systems
- Precipitation Measurement and Analysis
- Advancements in Photolithography Techniques
- Space Exploration and Technology
- Image Processing Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- Solar and Space Plasma Dynamics
- Computational Physics and Python Applications
City University of Seattle
2024
University of Washington
2018-2024
Space Telescope Science Institute
2019
The Zwicky Transient Facility is a large optical survey in multiple filters producing hundreds of thousands transient alerts per night. We describe here various machine learning (ML) implementations and plans to make the maximal use data set by taking advantage temporal nature data, further combining it with other sets. start initial steps separating bogus candidates from real ones, stars galaxies, go on classification objects into classes. Besides usual methods (e.g., based features...
The Vera C. Rubin Observatory will generate an unprecedented volume of data, including approximately 60 petabytes raw data and around 30 trillion observed sources, posing a significant challenge for large-scale end-user scientific analysis. As part the LINCC Frameworks Project we are addressing these challenges with development HATS (Hierarchical Adaptive Tiling Scheme) format analysis package LSDB (Large Scale Database). partitions adaptively using hierarchical tiling system to balance file...
Photometric redshifts will be a key data product for the Rubin Observatory Legacy Survey of Space and Time (LSST) as well future ground space-based surveys. The need photometric redshifts, or photo-zs, arises from sparse spectroscopic coverage observed galaxies. LSST is expected to observe billions objects, making it crucial have photo-z estimator that accurate efficient. To end, we present DeepDISC photo-z, an extension framework. base network simultaneously detects, segments, classifies...
Abstract Photometric classifications of supernova (SN) light curves have become necessary to utilize the full potential large samples observations obtained from wide-field photometric surveys, such as Zwicky Transient Facility (ZTF) and Vera C. Rubin Observatory. Here, we present a classifier for SN that does not rely on redshift information still maintains comparable accuracy redshift-dependent classifiers. Our new package, Superphot+, uses parametric model extract meaningful features...
Photometric classifications of supernova (SN) light curves have become necessary to utilize the full potential large samples observations obtained from wide-field photometric surveys, such as Zwicky Transient Facility (ZTF) and Vera C. Rubin Observatory. Here, we present a classifier for SN that does not rely on redshift information still maintains comparable accuracy redshift-dependent classifiers. Our new package, Superphot+, uses parametric model extract meaningful features multiband...
Abstract The creation of “healthy” scientific software is vital for its successful long-term adoption in research. Here healthy code defined to mean that usable, maintainable, and proffers consistently reproducible results. Incorporating tooling practices achieve these goals often leads short-term, yet significant, overhead new projects. We introduce the LINCC Frameworks Python Project Template, a configurable template designed projects greatly simplifies adopting best by automating setup...
We present a study of asteroseismically derived surface gravities, masses, and radii sample red giant stars both with without confirmed planetary companions using TESS photometric light curves. These giants were drawn from radial velocity surveys, their reported properties in the literature rely on more traditional methods spectroscopy isochrone fitting. Our gravities achieved precision $\sim$0.01 dex; however, they average $\sim$0.1~dex smaller than literature. The systematic larger could...
Photometric redshifts will be a key data product for the Rubin Observatory Legacy Survey of Space and Time (LSST) as well future ground space-based surveys. The need photometric redshifts, or photo-zs, arises from sparse spectroscopic coverage observed galaxies. LSST is expected to observe billions objects, making it crucial have photo-z estimator that accurate efficient. To end, we present DeepDISC photo-z, an extension framework. base network simultaneously detects, segments, classifies...
Abstract We present a study of asteroseismically derived surface gravities, masses, and radii sample red giant stars both with without confirmed planetary companions using TESS photometric light curves. These giants were drawn from radial velocity surveys, their reported properties in the literature rely on more traditional methods spectroscopy isochrone fitting. Our gravities achieved precision ∼0.01 dex; however, they average ∼0.1 dex smaller than literature. The systematic larger could...
Metal pollution in white dwarf atmospheres may be the accreted remnants of planetary objects. After discovery disintegrating objects transiting WD 1145+017 (Vanderburg et al. 2015), undergraduates University Washington's Pre- Major Astronomy Program (Pre-MAP) were inspired to collect photometry brightest dwarfs hunt for similar around other metal-polluted dwarfs. Prior surveys have yet make a detection planet orbiting dwarf, are still an attractive target searches small, rocky material....