A5091084585- Stellar, planetary, and galactic studies
- Calibration and Measurement Techniques
- Astronomy and Astrophysical Research
- Adaptive optics and wavefront sensing
- Advanced Semiconductor Detectors and Materials
- Infrared Target Detection Methodologies
- Astronomical Observations and Instrumentation
- Superconducting and THz Device Technology
- Astro and Planetary Science
- Spectroscopy and Laser Applications
- Astrophysics and Star Formation Studies
- Optical Systems and Laser Technology
- Geophysics and Gravity Measurements
- Spacecraft and Cryogenic Technologies
- Gamma-ray bursts and supernovae
- Advanced Thermodynamic Systems and Engines
- Ionosphere and magnetosphere dynamics
- Meteorological Phenomena and Simulations
- Photocathodes and Microchannel Plates
- Radiation Detection and Scintillator Technologies
- Molecular Spectroscopy and Structure
- Atmospheric Ozone and Climate
Pennsylvania State University
2023
University of Michigan
2020-2023
Michigan United
2020-2022
Abstract We present results from commissioning observations of the mid-IR instrument, MIRAC-5, on 6.5 m MMT telescope. MIRAC-5 is a novel ground-based instrument that utilizes state-of-the-art GeoSnap (2–13 µ m) HgCdTe detector with adaptive optics support MAPS to study protoplanetary disks, wide-orbit brown dwarfs, planetary companions in contrast-limit, and wide range other astrophysical objects. have used six engineering observing runs, improving its performance defining operating...
Direct imaging is a powerful exoplanet discovery technique that complementary to other techniques and offers great promise in the era of 30 m class telescopes. Space-based transit surveys have revolutionized our understanding frequency planets at small orbital radii around Sun-like stars. The next generation extremely large ground-based telescopes will angular resolution sensitivity directly image with R < 4 ⊕ very nearest Here, we predict yields from direct survey volume-limited sample...
We present the fifth incarnation of Mid-Infrared Array Camera (MIRAC-5) instrument which will use a new GeoSnap (3 – 13 microns) detector. Advances in adaptive optics (AO) systems and detectors are enabling ground based mid-infrared capable high spatial resolution deep contrast. As one only 3 micron cameras used tandem with AO, MIRAC-5 be complementary to James Webb Space Telescope (JWST) characterizing gas giant exoplanets imaging forming protoplanets (helping characterize their...
New longwave HgCdTe detectors are critical to upcoming plans for ground-based infrared astronomy. These detectors, with fast-readouts and deep well-depths, will be key components of extremely large telescope instruments therefore must well understood prior deployment. We analyze one such detector, a Teledyne Imaging Sensors GeoSnap, at the University Michigan. find that properties GeoSnap consistent expectations from analysis past devices. The has well-depth 2.75 million electrons per pixel,...
We present the mission concept "Mission to Analyze UltraViolet universE" (MAUVE), a wide-field spectrometer and imager conceived during inaugural NASA Astrophysics Mission Design School. MAUVE responds 2023 Announcement of Opportunity for Probe-class missions, with budget cap \$1 billion, would hypothetically launch in 2031. However, formulation was an educational exercise is not being developed further. The Principal Investigator-led science aligns priorities outlined 2020 Decadal Survey,...
We present results from commissioning observations of the mid-IR instrument, MIRAC-5, on 6.5-m MMT telescope. MIRAC-5 is a novel ground-based instrument that utilizes state-of-the-art GeoSnap (2 - 13 microns) HgCdTe detector with adaptive optics support MAPS to study protoplanetary disks, wide-orbit brown dwarfs, planetary companions in contrast-limit, and wide range other astrophysical objects. have used six engineering observing runs, improving its performance defining operating...
Abstract New mid‐infrared HgCdTe (MCT) detector arrays developed in collaboration with Teledyne Imaging Sensors (TIS) have paved the way for improved 10‐m sensors space‐ and ground‐based observatories. Building on successful development of longwave HAWAII‐2RGs space missions such as NEO Surveyor, we characterize first 13‐m GeoSnap manufactured to overcome challenges high‐background rates inherent mid‐IR astronomy. This test device merges photosensitive material Teledyne's GeoSnap‐18 (18‐m...
We introduce the Michigan Infrared Test Thermal ELT N-band (MITTEN) Cryostat, a new facility for testing infrared detectors with focus on mid-infrared (MIR) wavelengths (8-13 microns). New generations of large format, deep well, fast readout MIR are now becoming available to astronomical community. As one example, Teledyne Imaging Sensors (TIS) has introduced long-wave Mercury-Cadmium-Telluride (MCT) array, GeoSnap, high quantum efficiency (< 65 %) and improved noise properties compared...
Transitional disks are protoplanetary with large and deep central holes in the gas, possibly carved by young planets. Dong, R., & Dawson, R. 2016, ApJ, 825, 7 simulated systems multiple giant planets that were capable of carving maintaining such gaps during disk stage. Here we continue their simulations evolving for 10 Gyr after dissipation compare resulting system architecture to observed planet properties, as orbital eccentricities resonances. We find contain a disproportionately...
Abstract Transitional disks are protoplanetary with large and deep central holes in the gas, possibly carved by young planets. Dong & Dawson simulated systems multiple giant planets that were capable of carving maintaining such gaps during disk stage. Here we continue their simulations evolving for 10 Gyr after dissipation compare resulting system architecture to observed planet properties, as orbital eccentricities resonances. We find contain a disproportionately number circular orbits...
New mid-infrared HgCdTe (MCT) detector arrays developed in collaboration with Teledyne Imaging Sensors (TIS) have paved the way for improved 10-$μ$m sensors space- and ground-based observatories. Building on successful development of longwave HAWAII-2RGs space missions such as NEO Surveyor, we characterize first 13-$μ$m GeoSnap manufactured to overcome challenges high background rates inherent mid-IR astronomy. This test device merges photosensitive material Teledyne's 2048x2048 GeoSnap-18...
We introduce the Michigan Infrared Test Thermal ELT N-band (MITTEN) Cryostat, a new facility for testing infrared detectors with focus on mid-infrared (MIR) wavelengths (8-13 microns). New generations of large format, deep well, fast readout MIR are now becoming available to astronomical community. As one example, Teledyne Imaging Sensors (TIS) has introduced long-wave Mercury-Cadmium-Telluride (MCT) array, GeoSnap, high quantum efficiency (> 65 %) and improved noise properties compared...
Direct imaging is a powerful exoplanet discovery technique that complimentary to other techniques with great promise in the era of 30-meter class telescopes. Space-based transit surveys have revolutionized our understanding frequency planets at small orbital radii around sun-like stars. The next generation extremely large ground-based telescopes will angular resolution and sensitivity directly image R < 4 Earth very nearest Here we predict yields from direct survey volume-limited sample...