activity
20142021
most citedBalancing the Energy Budget of Short-Period Giant Planets: Evidence for Reflective Clouds and Optical Absorbers

153 citations · 884 across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.CO2021★ 8 cited

Euclid preparation: I. The Euclid Wide Survey

R. Scaramella, J. Amiaux, Y. Mellier +238

Euclid is an ESA mission designed to constrain the properties of dark energy and gravity via weak gravitational lensing and galaxy clustering. It will carry out a wide area imaging…

astro-ph.EP2018★ 82 cited

Detection of a Westward Hotspot Offset in the Atmosphere of a Hot Gas Giant CoRoT-2b

Lisa Dang, Nicolas B. Cowan, Joel C. Schwartz +9

Short-period planets exhibit day-night temperature contrasts of hundreds to thousands of degrees K. They also exhibit eastward hotspot offsets whereby the hottest region on the pla…

astro-ph.EP2017★ 111 cited

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,…

astro-ph.EP2017★ 62 cited

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…

astro-ph.EP2017★ 55 cited

Phase Offsets and the Energy Budgets of Hot Jupiters

Joel C. Schwartz, Zane Kashner, Diana Jovmir +1

Thermal phase curves of short-period planets on circular orbits provide joint constraints on the fraction of incoming energy that is reflected (Bond albedo) and the fraction of abs…

astro-ph.EP2016★ 9 cited

Knot a Bad Idea: Testing BLISS Mapping for Spitzer Space Telescope Photometry

Joel C. Schwartz, Nicolas B. Cowan

Much of transiting exoplanet science relies on high-precision photometry. The current generation of instruments can exhibit sensitivity variations greater than the astrophysical si…

astro-ph.EP2015★ 143 cited

3.6 and 4.5 m Phase Curves of the Highly-Irradiated Hot Jupiters WASP-19b and HAT-P-7b

Ian Wong, Heather A. Knutson, Tiffany Kataria +15

We analyze full-orbit phase curve observations of the transiting hot Jupiters WASP-19b and HAT-P-7b at 3.6 and 4.5 m obtained using the Spitzer Space Telescope. For WASP-19b, we…

astro-ph.EP2015★ 50 cited

Inferring Planetary Obliquity Using Rotational & Orbital Photometry

Joel C. Schwartz, Clara Sekowski, Hal M. Haggard +2

The obliquity of a terrestrial planet is an important clue about its formation and critical to its climate. Previous studies using simulated photometry of Earth show that continuou…

astro-ph.EP2015★ 111 cited

3.6 and 4.5 m Phase Curves of the Highly-Irradiated Eccentric Hot Jupiter WASP-14b

Ian Wong, Heather A. Knutson, Nikole K. Lewis +14

We present full-orbit phase curve observations of the eccentric () transiting hot Jupiter WASP-14b obtained in the 3.6 and 4.5 m bands using the \textit{Spitzer Spac…

astro-ph.EP2015★ 153 cited

Balancing the Energy Budget of Short-Period Giant Planets: Evidence for Reflective Clouds and Optical Absorbers

Joel C. Schwartz, Nicolas B. Cowan

We consider fifty transiting short-period giant planets for which eclipse depths have been measured at multiple infrared wavelengths. The aggregate dayside emission spectrum of the…

astro-ph.EP2014★ 100 cited

Features in the Broadband Eclipse Spectra of Exoplanets: Signal or Noise?

C. J. Hansen, J. C. Schwartz, N. B. Cowan

A planet's emission spectrum contains information about atmospheric composition and structure. We compare the Bayesian Information Criterion (BIC) of blackbody fits and idealized s…