979 citations · 19.7k across the 190 of their papers we have counts for
12 papers · 2 filters
Spitzer Secondary Eclipses of the Dense, Modestly-irradiated, Giant Exoplanet HAT-P-20b Using Pixel-Level Decorrelation
Drake Deming, Heather Knutson, Joshua Kammer +13
HAT-P-20b is a giant exoplanet that orbits a metal-rich star. The planet itself has a high total density, suggesting that it may also have a high metallicity in its atmosphere. We…
HST hot-Jupiter transmission spectral survey: detection of potassium in WASP-31b along with a cloud deck and Rayleigh scattering
D. K. Sing, H. R. Wakeford, A. P. Showman +15
We present Hubble Space Telescope optical and near-IR transmission spectra of the transiting hot-Jupiter WASP-31b. The spectrum covers 0.3-1.7 m at a resolution 70, which…
Characterization of the atmosphere of the hot Jupiter HAT-P-32Ab and the M-dwarf companion HAT-P-32B
Ming Zhao, Joseph G. O'Rourke, Jason T. Wright +13
We report secondary eclipse photometry of the hot Jupiter HAT-P-32Ab, taken with Hale/WIRC in H and Ks bands and with Spitzer/IRAC at 3.6 and 4.5 micron. We carried out adaptive op…
Water Vapour Absorption in the Clear Atmosphere of an exo-Neptune
Jonathan Fraine, Drake Deming, Björn Benneke +6
Transmission spectroscopy to date has detected atomic and molecular absorption in Jupiter-sized exoplanets, but intense efforts to measure molecular absorption in the atmospheres o…
Atmospheric Circulation of Eccentric Hot Jupiter HAT-P-2b
Nikole K. Lewis, Adam P. Showman, Jonathan J. Fortney +2
The hot-Jupiter HAT-P-2b has become a prime target for Spitzer Space Telescope observations aimed at understanding the atmospheric response of exoplanets on highly eccentric orbits…
Constraints on the Atmospheric Circulation and Variability of the Eccentric Hot Jupiter XO-3b
Ian Wong, Heather A. Knutson, Nicolas B. Cowan +9
We report secondary eclipse photometry of the hot Jupiter XO-3b in the 4.5~m band taken with the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. We measure individu…
The 4.5 m full-orbit phase curve of the hot Jupiter HD 209458b
Robert T. Zellem, Nikole K. Lewis, Heather A. Knutson +10
The hot Jupiter HD 209458b is particularly amenable to detailed study as it is among the brightest transiting exoplanet systems currently known (V-mag = 7.65; K-mag = 6.308) and ha…
Atmospheric Characterization of the Hot Jupiter Kepler-13Ab
Avi Shporer, Joseph G. O'Rourke, Heather A. Knutson +12
Kepler-13Ab (= KOI-13.01) is a unique transiting hot Jupiter. It is one of very few known short-period planets orbiting a hot A-type star, making it one of the hottest planets curr…
Hubble Space Telescope Near-IR Transmission Spectroscopy of the Super-Earth HD 97658b
Heather A. Knutson, Diana Dragomir, Laura Kreidberg +7
Recent results from the Kepler mission indicate that super-Earths (planets with masses between 1-10 times that of the Earth) are the most common kind of planet around nearby Sun-li…
Exoplanetary Atmospheres
Nikku Madhusudhan, Heather Knutson, Jonathan Fortney +1
The study of exoplanetary atmospheres is one of the most exciting and dynamic frontiers in astronomy. Over the past two decades ongoing surveys have revealed an astonishing diversi…
The Emergent 1.1-1.7 Micron Spectrum of the Exoplanet CoRoT-2b as Measured Using the Hubble Space Telescope
Ashlee Wilkins, Drake Deming, Nikku Madhusudhan +4
We have used Hubble/WFC3 and the G141 grism to measure the secondary eclipse of the transiting very hot Jupiter CoRoT-2b in the 1.1-1.7m spectral region. We find an eclipse dept…
A featureless transmission spectrum for the Neptune-mass exoplanet GJ 436b
Heather A. Knutson, Björn Benneke, Drake Deming +1
GJ 436b is a warm-- approximately 800 K--extrasolar planet that periodically eclipses its low-mass (half the mass of the Sun) host star, and is one of the few Neptune-mass planets…