Steve K. Choi

University of California, Los Angeles — United States

Physics and Astronomy · Physical Sciences

31h-index5.6kcitations163works17.02yr avg
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Research Topics

Radio Astronomy Observations and Technology(74), Galaxies: Formation, Evolution, Phenomena(54), Superconducting and THz Device Technology(51), Astronomy and Astrophysical Research(36), Cosmology and Gravitation Theories(34)

Publications163 total

The Atacama Cosmology Telescope: DR6 Sunyaev-Zel’dovich Selected Galaxy Clusters Catalog
The Open Journal of Astrophysics·2026Open Access
CCAT: Magnetic Sensitivity Measurements of Kinetic Inductance Detectors
IEEE Transactions on Applied Superconductivity·2026Open Access
The Atacama Cosmology Telescope: DR6 power spectra, likelihoods and ΛCDM parameters
Journal of Cosmology and Astroparticle Physics·2025· 60 citedOpen Access
CCAT: Optical Responsivity, Noise, and Readout Optimization of KIDs for Prime-Cam
arXiv (Cornell University)·2025Open Access
CCAT: Readout of over 10,000 280 GHz KIDs in Mod-Cam using RFSoC Electronics
arXiv (Cornell University)·2025Open Access
Evidence for large baryonic feedback at low and intermediate redshifts from kinematic Sunyaev-Zel’dovich observations with ACT and DESI photometric galaxies
Physical review. D/Physical review. D.·2025· 16 cited
The Atacama Cosmology Telescope: DR6 power spectrum foreground model and validation
Journal of Cosmology and Astroparticle Physics·2025· 2 citedOpen Access
CCAT: Mod-Cam Readout Overview and Flexible Stripline Performance
arXiv (Cornell University)·2025Open Access
CCAT: Mod-Cam Cryogenic Performance and its Impact on 280 GHz KID Array Noise
arXiv (Cornell University)·2025Open Access
The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps
The Astrophysical Journal·2025· 1 citedOpen Access
Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6
Journal of Cosmology and Astroparticle Physics·2025· 11 citedOpen Access
280-GHz aluminum MKID arrays for the Fred Young Submillimeter Telescope
Journal of Astronomical Telescopes Instruments and Systems·2025Open Access
Unified and consistent structure growth measurements from joint ACT, SPT and \textit{Planck} CMB lensing
ArXiv.org·2025Open Access
The Atacama Cosmology Telescope: Quantifying atmospheric emission above Cerro Toco
Physical review. D/Physical review. D.·2025· 2 cited
The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models
arXiv (Cornell University)·2025· 10 citedOpen Access
The Atacama Cosmology Telescope: DR6 Maps
ORCA Online Research @Cardiff (Cardiff University)·2025· 2 citedOpen Access
The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $Λ$CDM Parameters
ArXiv.org·2025· 7 citedOpen Access
The Simons Observatory: Science Goals and Forecasts for the Enhanced Large Aperture Telescope
arXiv (Cornell University)·2025· 1 citedOpen Access
Atacama Cosmology Telescope: DR6 gravitational lensing and SDSS BOSS cross-correlation measurement and constraints on gravity with the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>E</mml:mi><mml:mi>G</mml:mi></mml:msub></mml:math> statistic
Physical review. D/Physical review. D.·2025· 6 citedOpen Access
CCAT: LED Mapping and Characterization of the 280 GHz TiN KID Array
IEEE Transactions on Applied Superconductivity·2024· 1 cited
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Frequent Co-authors

Patricio A. Gallardo(36), Michael D. Niemack(33), Suzanne T. Staggs(32), Mark J. Devlin(31), Erminia Calabrese(30), Edward J. Wollack(30), Nicholas Battaglia(29), Johannes Hubmayr(28), Lyman A. Page(28), Mathew S. Madhavacheril(27), Jo Dunkley(26), F. Nati(26), Simone Aiola(25), Rolando Dünner(25), James A. Beall(24), Sigurd Næss(24), Jason E. Austermann(23), Shannon M. Duff(23), Adriaan J. Duivenvoorden(23), John P. Hughes(23)