979 citations · 19.7k across the 190 of their papers we have counts for
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Spitzer Secondary Eclipses of Qatar-1b
Emily Garhart, Drake Deming, Avi Mandell +2
Previous secondary eclipse observations of the hot Jupiter Qatar-1b in the Ks band suggest that it may have an unusually high day side temperature, indicative of minimal heat redis…
Constraints on the Spin Evolution of Young Planetary-Mass Companions
Marta L. Bryan, Bjorn Benneke, Heather A. Knutson +2
Surveys of young star-forming regions have discovered a growing population of planetary-mass (<13 M_Jup) companions around young stars. There is an ongoing debate as to whether the…
The Complete transmission spectrum of WASP-39b with a precise water constraint
Hannah R. Wakeford, David K. Sing, Drake Deming +12
WASP-39b is a hot Saturn-mass exoplanet with a predicted clear atmosphere based on observations in the optical and infrared. Here we complete the transmission spectrum of the atmos…
Hubble PanCET: An isothermal day-side atmosphere for the bloated gas-giant HAT-P-32Ab
N. Nikolov, D. K. Sing, J. Goyal +20
We present a thermal emission spectrum of the bloated hot Jupiter HAT-P-32Ab from a single eclipse observation made in spatial scan mode with the Wide Field Camera 3 (WFC3) aboard…
Phase curves of WASP-33b and HD 149026b and a New Correlation Between Phase Curve Offset and Irradiation Temperature
Michael Zhang, Heather A. Knutson, Tiffany Kataria +9
We present new 3.6 and 4.5 Spitzer phase curves for the highly irradiated hot Jupiter WASP-33b and the unusually dense Saturn-mass planet HD 149026b. As part of this analysis,…
Statistical Analysis of Hubble/WFC3 Transit Spectroscopy of Extrasolar Planets
Guangwei Fu, Drake Deming, Heather Knutson +3
Transmission spectroscopy provides a window to study exoplanetary atmospheres, but that window is fogged by clouds and hazes. Clouds and haze introduce a degeneracy between the str…
The Very Low Albedo of WASP-12b From Spectral Eclipse Observations with
Taylor J. Bell, Nikolay Nikolov, Nicolas B. Cowan +11
We present an optical eclipse observation of the hot Jupiter WASP-12b using the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. These spectra allow us to…
The Young Substellar Companion ROXs 12 B: Near-Infrared Spectrum, System Architecture, and Spin-Orbit Misalignment
Brendan Bowler, Adam Kraus, Marta Bryan +8
ROXs 12 (2MASS J16262803-2526477) is a young star hosting a directly imaged companion near the deuterium-burning limit. We present a suite of spectroscopic, imaging, and time-serie…
An ultrahot gas-giant exoplanet with a stratosphere
Thomas M. Evans, David K. Sing, Tiffany Kataria +24
Infrared radiation emitted from a planet contains information about the chemical composition and vertical temperature profile of its atmosphere. If upper layers are cooler than low…
Three's Company: An additional non-transiting super-Earth in the bright HD 3167 system, and masses for all three planets
Jessie L. Christiansen, Andrew Vanderburg, Jennifer Burt +55
HD 3167 is a bright (V = 8.9), nearby K0 star observed by the NASA K2 mission (EPIC 220383386), hosting two small, short-period transiting planets. Here we present the results of a…
HAT-P-26b: A Neptune-Mass Exoplanet with a Well Constrained Heavy Element Abundance
Hannah R. Wakeford, David K. Sing, Tiffany Kataria +11
A correlation between giant-planet mass and atmospheric heavy elemental abundance was first noted in the past century from observations of planets in our own Solar System, and has…
K2-66b and K2-106b: Two extremely hot sub-Neptune-size planets with high densities
Evan Sinukoff, Andrew W. Howard, Erik A. Petigura +20
We report precise mass and density measurements of two extremely hot sub-Neptune-size planets from the K2 mission using radial velocities, K2 photometry, and adaptive optics imagin…
No difference in orbital parameters of RV-detected giant planets between 0.1 and 5 au in single vs multi-stellar systems
Henry Ngo, Heather A. Knutson, Marta L. Bryan +8
Our Keck/NIRC2 imaging survey searches for stellar companions around 144 systems with radial velocity (RV) detected giant planets to determine whether stellar binaries influence th…
Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars II: Planetary Systems Observed During Campaigns 1-7
Courtney D. Dressing, Andrew Vanderburg, Joshua E. Schlieder +14
We recently used near-infrared spectroscopy to improve the characterization of 76 low-mass stars around which K2 had detected 79 candidate transiting planets. Thirty of these world…
Two Small Transiting Planets and a Possible Third Body Orbiting HD 106315
Ian J. M. Crossfield, David R. Ciardi, Howard Isaacson +21
The masses, atmospheric makeups, spin-orbit alignments, and system architectures of extrasolar planets can be best studied when the planets orbit bright stars. We report the discov…
Planet-Induced Stellar Pulsations in HAT-P-2's Eccentric System
J. de Wit, N. K. Lewis, H. A. Knutson +13
Extrasolar planets on eccentric short-period orbits provide a laboratory in which to study radiative and tidal interactions between a planet and its host star under extreme forcing…