HyeYun Park
A5071525482- Astronomical Observations and Instrumentation
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Adaptive optics and wavefront sensing
- CCD and CMOS Imaging Sensors
- Advanced optical system design
- Gamma-ray bursts and supernovae
- Galaxies: Formation, Evolution, Phenomena
- Inertial Sensor and Navigation
- Scientific Research and Discoveries
- Image and Object Detection Techniques
- Advanced Vision and Imaging
- Calibration and Measurement Techniques
- Geophysics and Gravity Measurements
- Satellite Image Processing and Photogrammetry
Duke University
2024
Vera C. Rubin Observatory
2024
Brookhaven National Laboratory
2020-2021
Stony Brook University
2019
Abstract We describe the simulated sky survey underlying second data challenge (DC2) carried out in preparation for analysis of Vera C. Rubin Observatory Legacy Survey Space and Time (LSST) by LSST Dark Energy Science Collaboration (LSST DESC). Significant connections across multiple science domains will be a hallmark LSST; DC2 program represents unique modeling effort that stresses this interconnectivity way has not been attempted before. This encompasses full end-to-end approach: starting...
The Vera C. Rubin Observatory is an integrated survey system, currently under construction in Chile, to accomplish a 10-year optical of the southern sky. 8.4-meter Simonyi Survey Telescope mount nearing completion and undergoing final verification performance testing. Since system optimized for etendue, telescope slewing particularly critical overall efficiency. For example, this high required slew 3.5 degrees, on sky, settle 4-second period. Here account subsystem presented selected dynamic...
The M2 secondary mirror of the Vera C. Rubin Observatory, scheduled to be commissioned on-sky in 2024, will first active 3.5m diameter operation. Its substantial dimensions and advanced functionalities place it league with mirrors upcoming 30m class telescopes. Characterizing its performance serves as a critical step towards comprehending controlling optics next generation Extremely Large Telescopes (ELTs). This study focuses on testing validating cell Observatory's integration hall at...
The Vera C. Rubin Observatory is reaching the final stages of its construction and integration, advancing towards 10-year Legacy Survey Space Time (LSST). One key milestones was installation M1M3 Mirror Cell Assembly onto Simonyi Telescope's (SST) Telescope Mount (TMA). actively supports primary/tertiary mirror (M1M3), playing a crucial role in maintaining glass safe ensuring image quality. However, before installation, installed on TMA while supporting steel surrogate mirror. This closely...
The Rubin Observatory Commissioning Camera (ComCam) is a scaled down (144 Megapixel) version of the 3.2 Gigapixel LSSTCam which will start Legacy Survey Space and Time (LSST), currently scheduled to in 2024. purpose ComCam verify interfaces with major subsystems observatory as well evaluate overall performance system prior commissioning hardware on telescope. With delivery all telescope components summit site by 2020, team has already started high-level interface verification, exercising...
Electro-optical testing and characterization of the Vera C. Rubin Observatory Legacy Survey Space Time (LSST) Camera focal plane, consisting 205 charge-coupled devices (CCDs) arranged into 21 stand-alone Raft Tower Modules (RTMs) 4 Corner (CRTMs), is currently being performed at SLAC National Accelerator Laboratory. Testing camera sensors using a set custom-built optical projectors, designed to illuminate full plane or specific regions with series light illumination patterns: crosstalk...