A5063796042- Astronomy and Astrophysical Research
- Particle Detector Development and Performance
- Adaptive optics and wavefront sensing
- Particle Accelerators and Free-Electron Lasers
- Photocathodes and Microchannel Plates
- Stellar, planetary, and galactic studies
- CCD and CMOS Imaging Sensors
- History and Developments in Astronomy
- Galaxies: Formation, Evolution, Phenomena
- Gamma-ray bursts and supernovae
- Advanced Fluorescence Microscopy Techniques
The University of Texas at Austin
2018-2024
McDonald's (United States)
2018
Abstract We present the first publicly released catalog of sources obtained from Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). HETDEX is an integral field spectroscopic survey designed to measure Hubble expansion parameter and angular diameter distance at 1.88 < z 3.52 by using spatial distribution more than a million Ly α -emitting galaxies over total target area 540 deg 2 . The comes contiguous fiber spectra coverage 25 sky 2017 January through 2020 June, where object...
The Immersion GRating INfrared Spectrometer (IGRINS) was designed for high-throughput with the expectation of being a visitor instrument at progressively larger observing facilities. IGRINS achieves R∼45000 and > 20,000 resolution elements spanning H K bands (1.45-2.5μm) by employing silicon immersion grating as primary disperser volume-phase holographic gratings cross-dispersers. After commissioning on 2.7 meter Harlan J. Smith Telescope McDonald Observatory, had more than 350 scheduled...
The Hobby-Eberly Telescope (HET) VIRUS Parallel Survey (HETVIPS) is a blind spectroscopic program that sparsely covers approximately two-thirds of the celestial sphere and consists roughly 252 million fiber spectra. spectra were taken in parallel mode with Visible Integral-field Replicable Unit Spectrograph (VIRUS) instrument when HET was observing primary target other facility instruments. can simultaneously obtain 35,000 covering 3470A to 5540A at spectral resolution ~800. Although vast...
The primary mirror (M1) of the Hobby Eberly Telescope (HET) consists 91 segments in a regular hexagonal shape. M1's center curvature can be accessed from top 90ft-tall tower, located just outside HET dome. current alignment metrology system this called Center Curvature Alignment System (CCAS), provides necessary to bring into single smooth 11-meter diameter spherical surface. This critical function is at risk due obsolescence and deficiencies aging system. upgrade includes suite advanced...