Karl Stapelfeldt

Jet Propulsion Laboratory — United States

Physics and Astronomy · Physical Sciences

72h-index20.4kcitations720works4.62yr avg
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Research Topics

Stellar, planetary, and galactic studies(466), Astrophysics and Star Formation Studies(322), Astro and Planetary Science(289), Astronomy and Astrophysical Research(266), Astronomical Observations and Instrumentation(59)

Publications713 total

Toward a near-ultraviolet coronagraph instrument for the Habitable Worlds Observatory
Journal of Astronomical Telescopes Instruments and Systems·2026
Keck Observations in the INfrared of Taurus and <i>ρ</i> Oph Exoplanets And Ultracool Dwarfs (KOINTREAU) I: A Planetary-mass Companion and a Disk-obscured Stellar Companion Discovered in Taurus
The Astronomical Journal·2026· 1 citedOpen Access
Hubble Reveals Complex Multiscale Structure in the Edge-on Protoplanetary Disk IRAS23077+6707
The Astrophysical Journal·2025Open Access
The near-infrared silhouette of the Flying Saucer edge-on disc revealed by the JWST JEDIce program
Astronomy and Astrophysics·2025Open Access
CoronaGraph Instrument Reference Stars for Exoplanets (CorGI-REx). I. Preliminary Vetting and Implications for the Roman Coronagraph and Habitable Worlds Observatory
The Astronomical Journal·2025Open Access
The Flying Saucer edge-on disc's Near Infrared silhouette revealed by the JWST JEDIce program
arXiv (Cornell University)·2025Open Access
Are We There Yet? Challenges in Quantifying the Frequency of Earth Analogs in the Habitable Zone
Publications of the Astronomical Society of the Pacific·2025· 1 citedOpen Access
Variation in the disk thickness across ice bands: A method for determining ice abundances in highly inclined protoplanetary disks
Astronomy and Astrophysics·2025Open Access
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems. VI. Evidence for Radially Evolving Icy Grains in the HD 141569A Disk via NIRCam Coronagraphic Imaging
The Astrophysical Journal·2025Open Access
CoronaGraph Instrument Reference stars for Exoplanets (CorGI-REx) I. Preliminary Vetting and Implications for the Roman Coronagraph and Habitable Worlds Observatory
ArXiv.org·2025Open Access
Are We There Yet? Challenges in Quantifying the Frequency of Earth Analogs in the Habitable Zone
arXiv (Cornell University)·2025Open Access
Variation of the disk thickness across ice bands: A method to determine ice abundances in highly inclined protoplanetary disks
arXiv (Cornell University)·2025Open Access
The PICTURE-D exoplanetary imaging balloon mission: pre-flight laboratory coronagraph demonstration
2025
NASA Exoplanet Exploration Program (ExEP) Science Gap List
arXiv (Cornell University)·2025Open Access
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems. III. Aperture Masking Interferometric Observations of the Star HIP 65426 at 3.8 <i>μ</i>m
The Astrophysical Journal Letters·2025· 3 citedOpen Access
The role of absorption and scattering in shaping ice bands
Astronomy and Astrophysics·2025· 2 citedOpen Access
Turbulence in protoplanetary disks: A systematic analysis of dust settling in 33 disks
Astronomy and Astrophysics·2025· 13 citedOpen Access
Review and Prospects of Hot Exozodiacal Dust Research For Future Exo-Earth Direct Imaging Missions
Publications of the Astronomical Society of the Pacific·2025· 3 citedOpen Access
Cross-Model Validation of Coronagraphic Exposure Time Calculators for the Habitable Worlds Observatory: A Report from the Exoplanet Science Yield sub-Working Group
arXiv (Cornell University)·2025Open Access
JWST Imaging of Edge-on Protoplanetary Disks. IV. Mid-infrared Dust Scattering in the HH 30 Disk
The Astrophysical Journal·2025· 10 citedOpen Access
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Frequent Co-authors

Deborah Padgett(17), G. H. Rieke(13), M. W. Werner(12), Shadab Alam(12), K. Y. L. Su(11), Neal J. Evans(11), E. F. van Dishoeck(10), P. M. Harvey(10), D. W. Koerner(10), John Krist(10), Christopher J. Burrows(10), Paul A. Scowen(10), G. Bryden(10), J. T. Clarke(9), Jon A. Holtzman(9), John Stansberry(8), Tracy L. Huard(8), Geoffrey A. Blake(8), Lee G. Mundy(8), Anneila I. Sargent(8)