Dr. Minjin Kim Profile

Dr. Minjin Kim

at Korea Astronomy and Space Science Institute

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 6 July 2018 Presentation + Paper

SPHEREx: an all-sky NIR spectral survey

Phillip Korngut, James Bock, Rachel Akeson, Matthew Ashby, Lindsey Bleem, Justin Boland, Douglas Bolton, Samuel Bradford, David Braun, Sean Bryan, Peter Capak, Tzu-Ching Chang, Andrew Coffey, Asantha Cooray, Brendan Crill, Olivier Doré, Tim Eifler, Chang Feng, Salman Habib, Katrin Heitmann, Shoubaneh Hemmati, Christopher Hirata, Woong-Seob Jeong, Minjin Kim, Davy Kirkpatrick, Theresa Kowalkowski, Elisabeth Krause, Carey Lisse, Philip Mauskopf, Daniel Masters, James McGuire, Gary Melnick, Hein Nguyen, Hooshang Nayyeri, Karin Oberg, Roland dePutter, William Purcell, Jennifer Rocca, Marcus Runyan, Karin Sandstrom, Roger Smith, Yong-Seon Song, Nathaniel Stickley, Jeremy Stober, Sara Susca, Harry Teplitz, Volker Tolls, Stephen Unwin, Michael Werner, Rogier Windhorst, Michael Zemcov

Proceedings Volume 10698, 106981U (2018) https://doi.org/10.1117/12.2312860

KEYWORDS: Staring arrays, Prototyping, Sensors, Space operations, Space telescopes, Telescopes, Galactic astronomy, Mirrors, Near infrared, Astronomy

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SPHEREx, a mission in NASA’s Medium Explorer (MIDEX) program recently selected for Phase-A implementation, is an all-sky survey satellite that will produce a near-infrared spectrum for every 6 arcsecond pixel on the sky. SPHEREx has a simple, high-heritage design with large optical throughput to maximize spectral mapping speed. While the legacy data products will provide a rich archive of spectra for the entire astronomical community to mine, the instrument is optimized for three specific scientific goals: to probe inflation through the imprint primordial non-Gaussianity left on today’s large-scale cosmological structure; to survey the Galactic plane for water and other biogenic ices through absorption line studies; and to constrain the history of galaxy formation through power spectra of background fluctuations as measured in deep regions near the ecliptic poles. The aluminum telescope consists of a heavily baffled, wide-field off-axis reflective triplet design. The focal plane is imaged simultaneously by two mosaics of H2RG detector arrays separated by a dichroic beamsplitter. SPHEREx assembles spectra through the use of mass and volume efficient linear variable filters (LVFs) included in the focal plane assemblies, eliminating the need for any dispersive or moving elements. Instead, spectra are constructed through a series of small steps in the spacecraft attitude across the sky, modulating the location of an object within the FOV and varying the observation wavelength in each exposure. The spectra will cover the wavelength range between 0.75 and 5.0 µm at spectral resolutions ranging between R=35 and R=130. The entire telescope is cooled passively by a series of three V-groove radiators below 80K. An additional stage of radiative cooling is included to reduce the long wavelength focal plane temperature below 60K, controlling the dark current. As a whole, SPHEREx requires no new technologies and carries large technical and resource margins on every aspect of the design.

Proceedings Article | 6 July 2018 Paper

Development of optomechanical structure for the NISS onboard NEXTSat-1

Bongkon Moon, Sung-Joon Park, Woong-Seob Jeong, Duk-Hang Lee, Kyeongyeon Ko, Dae-Hee Lee, Youngsik Park, Jeonghyun Pyo, Won-Kee Park, Il-Joong Kim, Mingyu Kim, Minjin Kim, Jongwan Ko, Young Sam Yu, Toshio Matsumoto, Jang-Soo Chae, Goo-Hwan Shin, Norihide Takeyama, Akito Enokuchi

Proceedings Volume 10698, 106984R (2018) https://doi.org/10.1117/12.2311906

KEYWORDS: Satellites, Mirrors, Aluminum, Telescopes, Optical fabrication, Space telescopes, Computer aided design, Assembly tolerances, Lenses, Sensors, Near infrared spectroscopy

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Proceedings Article | 6 July 2018 Paper

Development of optical system for the NISS onboard NEXTSat-1

Sung-Joon Park, Bongkon Moon, Woong-Seob Jeong, Min Gyu Kim, Kyeongyeon Ko, Dae-Hee Lee, Jeonghyun Pyo, Won-Kee Park, Il-Joong Kim, Youngsik Park, Duk-Hang Lee, Minjin Kim, Jongwan Ko, Norihide Takeyama, Sun Choel Yang, Toshio Matsumoto, Jang-Soo Chae, Goo-Hwan Shin

Proceedings Volume 10698, 1069848 (2018) https://doi.org/10.1117/12.2313149

KEYWORDS: Mirrors, Spectroscopy, Infrared sensors, Calibration, Satellites

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Proceedings Article | 6 July 2018 Presentation + Paper

Development of near-infrared imaging spectrometer (NISS) onboard NEXTSat-1

Woong-Seob Jeong, Sung-Joon Park, Bongkon Moon, Dae-Hee Lee, Jeonghyun Pyo, Won-Kee Park, Il-Joong Kim, Youngsik Park, Kyeongyeon Ko, Mingyu Kim, Dukhang Lee, Minjin Kim, Jongwan Ko, Sun Choel Yang, Norihide Takeyama, Goo-Hwan Shin, Jang-Soo Chae, Toshio Matsumoto

Proceedings Volume 10698, 1069822 (2018) https://doi.org/10.1117/12.2312336

KEYWORDS: Space telescopes, Spectroscopy, Calibration, Satellites, Telescopes, Imaging spectroscopy, Astronomy, Infrared backgrounds, Astronomical instrumentation

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Proceedings Article | 29 July 2016 Paper

Near-infrared imaging spectrometer onboard NEXTSat-1

Woong-Seob Jeong, Sung-Joon Park, Bongkon Moon, Dae-Hee Lee, Jeonghyun Pyo, Won-Kee Park, Youngsik Park, Il-Joong Kim, Kyeongyeon Ko, Dukhang Lee, Min Gyu Kim, Minjin Kim, Jongwan Ko, Goo-Hwan Shin, Jangsoo Chae, Toshio Matsumoto

Proceedings Volume 9904, 990459 (2016) https://doi.org/10.1117/12.2232924

KEYWORDS: Space telescopes, Spectroscopy, Infrared telescopes, Stars, Satellites, Digital signal processing, Telescopes, Infrared imaging, Infrared radiation, Astronomy

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Proceedings Article | 17 September 2012 Paper

Korea Microlensing Telescope Network: science cases

Byeong-Gon Park, Seung-Lee Kim, Jae Woo Lee, Byeong-Cheol Lee, Chung-Uk Lee, Cheongho Han, Minjin Kim, Dae-Sik Moon, Hong-Kyu Moon, Soo-Chang Rey, Eon-Chang Sung, Hwankyung Sung

Proceedings Volume 8444, 844447 (2012) https://doi.org/10.1117/12.925826

KEYWORDS: Exoplanets, Galactic astronomy, Space telescopes, Telescopes, Stars, Planets, Astronomy, Galaxy groups and clusters, Mars, Observatories

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Proceedings Article | 31 January 2011 Paper

Estimating the number of people in crowded scenes

Minjin Kim, Wonjun Kim, Changick Kim

Proceedings Volume 7882, 78820L (2011) https://doi.org/10.1117/12.872493

KEYWORDS: Image segmentation, Video, Video surveillance, Head, Motion models, Feature extraction, Positron emission tomography, Radio over Fiber, Electrical engineering, Direct methods

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Showing 5 of 7 publications

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