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Kevin Hardegree-Ullman
Kevin Hardegree-Ullman
University of Arizona, Steward Observatory
Verified email at arizona.edu - Homepage
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Cited by
Cited by
Year
Kepler planet occurrence rates for mid-type M dwarfs as a function of spectral type
KK Hardegree-Ullman, MC Cushing, PS Muirhead, JL Christiansen
The Astronomical Journal 158 (2), 75, 2019
1652019
Ground-based near-UV observations of 15 transiting exoplanets: constraints on their atmospheres and no evidence for asymmetrical transits
JD Turner, KA Pearson, LI Biddle, BM Smart, RT Zellem, JK Teske, ...
Monthly Notices of the Royal Astronomical Society 459 (1), 789-819, 2016
1092016
Scaling K2. I. Revised parameters for 222,088 K2 stars and a K2 planet radius valley at 1.9 R⊕
KK Hardegree-Ullman, JK Zink, JL Christiansen, CD Dressing, DR Ciardi, ...
The Astrophysical Journal Supplement Series 247 (1), 28, 2020
972020
The most massive heartbeat: an in-depth analysis of ι Orionis
H Pablo, ND Richardson, J Fuller, J Rowe, AFJ Moffat, R Kuschnig, ...
Monthly Notices of the Royal Astronomical Society 467 (2), 2494-2503, 2017
582017
WASP-107b’s density is even lower: a case study for the physics of planetary gas envelope accretion and orbital migration
C Piaulet, B Benneke, RA Rubenzahl, AW Howard, EJ Lee, D Thorngren, ...
The Astronomical Journal 161 (2), 70, 2021
562021
Bright opportunities for atmospheric characterization of small planets: Masses and radii of K2-3 b, c, and d and GJ3470 b from radial velocity measurements and Spitzer transits
MR Kosiarek, IJM Crossfield, KK Hardegree-Ullman, JH Livingston, ...
The Astronomical Journal 157 (3), 97, 2019
552019
An exomoon survey of 70 cool giant exoplanets and the new candidate Kepler-1708 bi
D Kipping, S Bryson, C Burke, J Christiansen, K Hardegree-Ullman, ...
Nature Astronomy 6 (3), 367-380, 2022
512022
Investigating the physical properties of transiting hot Jupiters with the 1.5-m Kuiper Telescope
JD Turner, RM Leiter, LI Biddle, KA Pearson, KK Hardegree-Ullman, ...
Monthly Notices of the Royal Astronomical Society 472 (4), 3871-3886, 2017
512017
THE FIRST DETECTION OF PHOTOMETRIC VARIABILITY IN AY DWARF: WISE J140518. 39+ 553421.3
MC Cushing, KK Hardegree-Ullman, JL Trucks, CV Morley, JE Gizis, ...
The Astrophysical Journal 823 (2), 152, 2016
512016
Observed variability at 1 and 4 μm in the Y0 brown dwarf WISEP J173835. 52+ 273258.9
SK Leggett, MC Cushing, KK Hardegree-Ullman, JL Trucks, MS Marley, ...
The Astrophysical Journal 830 (2), 141, 2016
412016
Near-UV and optical observations of the transiting exoplanet TrES-3b
JD Turner, BM Smart, KK Hardegree-Ullman, TM Carleton, ...
Monthly Notices of the Royal Astronomical Society 428 (1), 678-690, 2013
412013
Planetary candidates from K2 campaign 16
L Yu, IJM Crossfield, JE Schlieder, MR Kosiarek, AD Feinstein, ...
The Astronomical Journal 156 (1), 22, 2018
382018
Characterizing K2 candidate planetary systems orbiting low-mass stars. IV. Updated properties for 86 cool dwarfs observed during campaigns 1–17
CD Dressing, K Hardegree-Ullman, JE Schlieder, ER Newton, ...
The Astronomical Journal 158 (2), 87, 2019
372019
Transmission spectroscopy for the warm sub-Neptune HD 3167c: evidence for molecular absorption and a possible high-metallicity atmosphere
T Mikal-Evans, IJM Crossfield, B Benneke, L Kreidberg, J Moses, ...
The Astronomical Journal 161 (1), 18, 2020
342020
Photometric monitoring of the coldest known brown dwarf with the Spitzer Space Telescope
TL Esplin, KL Luhman, MC Cushing, KK Hardegree-Ullman, JL Trucks, ...
The Astrophysical Journal 832 (1), 58, 2016
332016
Scaling K2. II. Assembly of a Fully Automated C5 Planet Candidate Catalog Using EDI-Vetter
JK Zink, KK Hardegree-Ullman, JL Christiansen, CD Dressing, ...
The Astronomical Journal 159 (4), 154, 2020
252020
Revisiting the HIP 41378 System with K2 and Spitzer
D Berardo, IJM Crossfield, M Werner, E Petigura, J Christiansen, ...
The Astronomical Journal 157 (5), 185, 2019
232019
A Spectroscopic Orbit for the Late-type Be Star β CMi
NA Dulaney, ND Richardson, CJ Gerhartz, JE Bjorkman, KS Bjorkman, ...
The Astrophysical Journal 836 (1), 112, 2017
232017
Catalog of New K2 Exoplanet Candidates from Citizen Scientists
JK Zink, KK Hardegree-Ullman, JL Christiansen, IJM Crossfield, ...
Research Notes of the AAS 3 (2), 43, 2019
202019
Scaling K2. IV. A Uniform Planet Sample for Campaigns 1–8 and 10–18
JK Zink, KK Hardegree-Ullman, JL Christiansen, S Bhure, BD Adkins, ...
The Astronomical Journal 162 (6), 259, 2021
192021
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