Jonathon Hunacek

ORCID: 0000-0001-7066-226X
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About
Contact & Profiles
Research Areas
  • Superconducting and THz Device Technology
  • Astrophysics and Star Formation Studies
  • Galaxies: Formation, Evolution, Phenomena
  • Radio Astronomy Observations and Technology
  • Spectroscopy and Laser Applications
  • Stellar, planetary, and galactic studies
  • Astronomy and Astrophysical Research
  • Cosmology and Gravitation Theories
  • Photonic and Optical Devices
  • Astrophysics and Cosmic Phenomena
  • Solar and Space Plasma Dynamics
  • Photocathodes and Microchannel Plates
  • CCD and CMOS Imaging Sensors
  • Acoustic Wave Resonator Technologies
  • Scientific Research and Discoveries
  • Gamma-ray bursts and supernovae
  • Nuclear Physics and Applications
  • Advanced MRI Techniques and Applications
  • Mechanical and Optical Resonators
  • Geomagnetism and Paleomagnetism Studies
  • Target Tracking and Data Fusion in Sensor Networks
  • Gyrotron and Vacuum Electronics Research
  • Laser-induced spectroscopy and plasma
  • Plant nutrient uptake and metabolism
  • Advanced Vision and Imaging

California Institute of Technology
2014-2021

TIME-Pilot is designed to make measurements from the Epoch of Reionization (EoR), when first stars and galaxies formed ionized intergalactic medium. This will be done via redshifted 157.7 um line singly carbon ([CII]). In particular, produce detection [CII] clustering fluctuations, a signal proportional integrated intensity, summed over all EoR galaxies. thus sensitive emission dwarf galaxies, thought responsible for balance ionizing UV photons, that difficult detect individually with JWST...

10.1117/12.2057207 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2014-08-19

Line intensity mapping (LIM) provides a unique and powerful means to probe cosmic structures by measuring the aggregate line emission from all galaxies across redshift. The method is complementary conventional galaxy redshift surveys that are object-based demand exquisite point-source sensitivity. Tomographic Ionized-carbon Mapping Experiment (TIME) will measure star formation rate (SFR) during reionization observing redshifted [CII] 158$\mu$m ($6 \lesssim z 9$) in LIM regime. TIME...

10.3847/1538-4357/abfe62 article EN The Astrophysical Journal 2021-07-01

Abstract Intensity mapping provides a unique means to probe the epoch of reionization (EoR), when neutral intergalactic medium was ionized by energetic photons emitted from first galaxies. The [C ii ] 158 μ m fine-structure line is typically one brightest emission lines star-forming galaxies and thus promising tracer global EoR star formation activity. However, intensity maps at 6 ≲ z 8 are contaminated interloping CO rotational (3 ≤ J upp 6) lower-redshift Here we present strategy remove...

10.3847/1538-4357/aab3e3 article EN cc-by The Astrophysical Journal 2018-03-29

The Cosmic Dawn and Reionization epochs remain a fundamental but challenging frontier of astrophysics cosmology. We advocate large-scale, multi-tracer approach to develop comprehensive understanding the physics that led formation evolution first stars galaxies. highlight line intensity mapping technique trace multi-phase reionization topology on large scales, measure history in detail. Besides 21cm, we for Lya tomography during epoch Wouthuysen-Field coupling as an additional probe cosmic dawn era.

10.48550/arxiv.1903.11744 preprint EN other-oa arXiv (Cornell University) 2019-01-01

This proceeding presents the current TIME-Pilot instrument design and status with a focus on close-packed modular detector arrays spectrometers. Results of laboratory tests prototype detectors spectrometers are discussed. is new mm-wavelength grating spectrometer array under development that will study Epoch Reionization (the period time when first stars galaxies ionized intergalactic medium) by mapping fluctuations redshifted 157:7 μm emission line singly carbon ([CII]) from redshift z ~...

10.1117/12.2233762 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2016-07-19

The Tomographic Ionized-carbon Mapping Experiment (TIME) utilizes grating spectrometers to achieve instantaneous wideband coverage with background-limited sensitivity. A unique approach is employed in which curved gratings are used parallel plate waveguides focus and diffract broadband light from feed horns toward detector arrays. TIME will measure singly ionized carbon fluctuations 5 < z 9 an imaging spectrometer. 32 independent assembled into two stacks of 16, one per polarization. Each...

10.1117/12.2311415 article EN 2018-07-09

We present our design for antenna-coupled thermal kinetic inductance detectors (TKIDs) designed Cosmic Microwave Background (CMB) observations in the 150 GHz band. The next generation of telescopes studying CMB will require large arrays on cryogenic focal planes to achieve high sensitivity at cost increased integration and readout complexity. TKIDs have demonstrated photon-limited noise performance comparable traditional bolometers with a radiofrequency (RF) multiplexing architecture that...

10.1117/12.2563373 article EN 2020-12-12

The Tomographic Ionized carbon Mapping Experiment (TIME) is a multi-phased experiment that will topographically map [CII] emission from the Epoch of Reionization. We are developing lithographed spectrometers couple to TES bolometers in anticipation second generation instrument. Our design intentionally mirrors many features parallel SuperSpec project, inductively coupling power trunk-line microstrip onto half-wave resonators. resonators rat-race hybrids feeds bolometers. 25 channel prototype...

10.1117/12.2057319 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2014-08-19
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